H3c S5830v2 series User manual

H3C S5830V2 & S5820V2 Switch Series

Layer 2

—

LAN Switching Configuration Guide

Hangzhou H3C Technologies Co., Ltd.

http://www.h3c.com

Software version: Release 23xx

Document version: 6W102-20150315

No part of this manual may be reproduced or transmitted in any form or by any means without prior

written consent of Hangzhou H3C Technologies Co., Ltd.

Trademarks

H3C, , H3CS, H3CIE, H3CNE, Aolynk, , H3Care, , IRF, NetPilot, Netflow,

SecEngine, SecPath, SecCenter, SecBlade, Comware, ITCMM and HUASAN are trademarks of

Hangzhou H3C Technologies Co., Ltd.

All other trademarks that may be mentioned in this manual are the property of their respective owners

Notice

The information in this document is subject to change without notice. Every effort has been made in the

preparation of this document to ensure accuracy of the contents, but all statements, information, and

recommendations in this document do not constitute the warranty of any kind, express or implied.

Preface

The H3C S5830V2 & S5820V2 documentation set includes 16 configuration guides. These guides

describe the software features for the H3C S5830V2 & S5820V2 Switch Series and guide you through

the software configuration procedures. These guides also provide configuration examples to help you

apply software features to different network scenarios.

The Layer 2—LAN Switching Configuration Guide describes features and tasks that help you get started

with the device, including:

•Flow control and load sharing.

•User isolation in the same VLAN and VLAN configuration.

•Layer 2 loop elimination.

•Transmission of customer network packets over the service provider network.

•VLAN tag manipulations.

This preface includes:

•Audience

•Added and modified features

•Conventions

•About the H3C S5830V2 & S5820V2 documentation set

•Obtaining documentation

•Technical support

•Documentation feedback

Audience

This documentation is intended for:

•Network planners.

•Field technical support and servicing engineers.

•Network administrators working with the S5830V2 & S5820V2 series.

Added and modified features

Release 2311P05 does not contain any changes to LAN switching features over Release 2311P04.

Release 2311P04 contains the following changes to LAN switching features over Release 2310:

Confi

uration

uide Added and modified features

Ethernet link aggregation

Added features:

•Configuring per-flow load sharing algorithm settings for Ethernet

link aggregation.

•Enabling BFD for Ethernet link aggregation.

Confi

uration

uide Added and modified features

Service loopback group Modified features: Configuring service loopback groups.

Release 2310 contains the following changes to LAN switching features over Release 2307:

Confi

uration

uide Added and modified features

MAC address table Modified features: Enabling MAC address move notifications.

VLAN mapping Added features: Configuring many-to-one VLAN mapping in a

network with static IP address assignment.

Release 2307 contains the following changes to LAN switching features over Release 2210:

Confi

uration

uide Added and modified features

Ethernet interface

Added features:

•Configuring the expected bandwidth of an interface.

•Configuring the link mode of an Ethernet interface.

•Forcibly bringing up a fiber port.

•Displaying and clearing Ethernet statistics.

•Configuring Layer 3 Ethernet subinterfaces.

•Setting the MTU for an Ethernet interface or subinterface.

Modified features:

•Configuring the interface description.

•Displaying summary information about the specified interface or

all interfaces.

•Configuring physical state change suppression on an Ethernet

interface.

Loopback, null, and inloopback

interface

Added features:

•Configuring the expected bandwidth of an interface.

•Displaying and maintaining inloopback interfaces.

Modified features:

•Configuring the interface description.

•Displaying summary information about the specified interface or

all interfaces.

Bulk interface configuration Added features: Displaying and maintaining bulk interface

configuration.

MAC address table

Added features:

•Enabling MAC address move notifications.

•Enabling SNMP notifications for the MAC address table.

•Configuring the MAC address table in EVB S-channel aggregate

interface view.

•Deleting unicast MAC address entries based on the RBs through

which packets leave the TRILL network.

MAC Information Added features: Configuring the MAC Information in EVB S-channel

aggregate interface view.

Confi

uration

uide Added and modified features

Ethernet link aggregation

Added features:

•Configuring the expected bandwidth of an interface.

•Configuring Layer 3 aggregate group.

•Configuring an edge aggregate interface.

•Configuring LACP operating mode.

•Configuring Layer 3 aggregate subinterface.

•Configuring the MTU of a Layer 3 aggregate interface.

Modified features:

•Configuring the interface description.

•Displaying summary information about the specified interface or

all interfaces.

•Setting the minimum and maximum numbers of Selected ports for

an aggregation group.

Port Isolation N/A

Spanning tree

Added features:

•PVST.

•Configuring TC Snooping.

Modified features: The command stp global enable was added in the

factory defaults. When the device starts up with the default

configuration file (or factory defaults), the spanning tree feature is

enabled globally by default.

Loop detection N/A

VLAN

Added features:

•Configuring IP subnet-based VLANs.

•Configuring protocol-based VLANs.

•Configuring the expected bandwidth of a VLAN interface.

•Assigning an S-channel aggregate interface of EVB to a VLAN.

Modified features:

•The minimum MTU for a VLAN interface was changed to 128

bytes from 46 bytes.

•The VLAN or VLAN interface description was changed to a string

of 1 to 255 characters.

•Supporting to display brief information about interfaces in down

state and the down causes.

Super VLAN Super VLAN was introduced in Release 2307.

Private VLAN Private VLAN was introduced in Release 2307.

MVRP MVRP was introduced in Release 2307.

QinQ N/A

VLAN mapping N/A

PBB PBB was introduced in Release 2307.

Confi

uration

uide Added and modified features

LLDP

Added features:

•Configuring the LLDP bridge mode.

•Configuring the token bucket size for sending LLDPDUs.

•Setting the interval for fast LLDPDU transmission.

•Configuring LLDP in Layer 2 aggregate interface view, Layer 3

aggregate interface view, Layer 3 Ethernet interface view, or

management Ethernet interface view.

•Configuring LLDP to support nearest customer bridge agents and

nearest non-TPMR bridge agent.

Modified features:

•The following operating modes and interface views were added

for nearest non-TPMR bridge agents:

{Operating modes disable, rx, and tx.

{Interface views Layer 2 aggregate interface view, Layer 3

aggregate interface view, Layer 3 Ethernet interface view, and

management Ethernet interface view.

•The standard version for DCBX was added and became the initial

version for negotiation.

Deleted features: Setting the LLDPDU transmit delay.

Service loopback group N/A

Cut-through N/A

Conventions

This section describes the conventions used in this documentation set.

Command conventions

Convention Descri

tion

Boldface Bold text represents commands and keywords that you enter literally as shown.

Italic Italic text represents arguments that you replace with actual values.

[ ] Square brackets enclose syntax choices (keywords or arguments) that are optional.

{ x | y | ... }

Braces enclose a set of required syntax choices separated by vertical bars, from which

you select one.

[ x | y | ... ]

Square brackets enclose a set of optional syntax choices separated by vertical bars, from

which you select one or none.

{ x | y | ... } *

Asterisk marked braces enclose a set of required syntax choices separated by vertical

bars, from which you select at least one.

[ x | y | ... ] *

Asterisk marked square brackets enclose optional syntax choices separated by vertical

bars, from which you select one choice, multiple choices, or none.

&<1-n> The argument or keyword and argument combination before the ampersand (&) sign can

be entered 1 to n times.

# A line that starts with a pound (#) sign is comments.

GUI conventions

Convention Descri

tion

Boldface Window names, button names, field names, and menu items are in Boldface. For

example, the New User window appears; click OK.

> Multi-level menus are separated by angle brackets. For example, File > Create > Folder.

Symbols

Convention Descri

tion

WARNING An alert that calls attention to important information that if not understood or followed can

result in personal injury.

CAUTION An alert that calls attention to important information that if not understood or followed can

result in data loss, data corruption, or damage to hardware or software.

IMPORTANT An alert that calls attention to essential information.

NOTE An alert that contains additional or supplementary information.

TIP An alert that provides helpful information.

Network topology icons

Represents a generic network device, such as a router, switch, or firewall.

Represents a routing-capable device, such as a router or Layer 3 switch.

Represents a generic switch, such as a Layer 2 or Layer 3 switch, or a router that supports

Layer 2 forwarding and other Layer 2 features.

Port numbering in examples

The port numbers in this document are for illustration only and might be unavailable on your switch.

About the H3C S5830V2 & S5820V2

documentation set

The H3C S5830V2 & S5820V2 documentation set includes:

Cate

Documents

Pur

oses

Product description and

specifications Marketing brochures Describe product specifications and benefits.

Hardware specifications

and installation

Compliance and safety

manual

Provides regulatory information and the safety

instructions that must be followed during installation.

Installation quick start Provides basic installation instructions.

Cate

Documents

Pur

oses

Installation guide Provides a complete guide to hardware installation

and hardware specifications.

H3C LSWM1HFANSC &

LSWM1HFANSCB Fan

Assemblies Installation

Provides the physical views, specifications,

installation procedures, and removal procedures for

hot-swappable fan assemblies.

H3C LSVM1FANSC &

LSVM1FANSCB Fan

Assemblies Installation

Provides the physical views, specifications,

installation procedures, and removal procedures for

hot-swappable fan assemblies.

H3C SFP/SFP+/XFP

Transceiver Modules

Installation Guide

Describes the installation and replacement

procedures for SFP/SFP+/XFP transceiver modules.

H3C LSVM1AC650 &

LSVM1DC650 Power

Modules User Manual

Provides the physical views, specifications,

installation procedures, and removal procedures for

the LSVM1AC650 and LSVM1DC650 power

modules.

H3C LSVM1AC300 &

LSVM1DC300 Power

Modules User Manual

Provides the physical views, specifications,

installation procedures, and removal procedures for

the LSVM1AC300 and LSVM1DC300 power

modules.

Software configuration

Configuration guides Describe software features and configuration

procedures.

Command references Provide a quick reference to all available

commands.

Operations and

maintenance

MIB Companion Describes the MIBs for the software release.

Release notes Provide information about the product release and

software upgrading.

Obtaining documentation

Access the most up-to-date H3C product documentation on the World Wide Web

at http://www.h3c.com.

Click the links on the top navigation bar to obtain different categories of product documentation:

[Technical Support & Documents > Technical Documents]—Provides hardware installation, software

upgrading, and software feature configuration and maintenance documentation.

[Products & Solutions]—Provides information about products and technologies, as well as solutions.

[Technical Support & Documents > Software Download]—Provides the documentation released with the

software version.

Technical support

servic[email protected]

http://www.h3c.com

Documentation feedback

You can e-mail your comments about product documentation to info@h3c.com.

We appreciate your comments.

Contents

Configuring Ethernet interfaces··································································································································· 1

Configuring a management Ethernet interface ··············································································································1

Ethernet interface naming conventions ···························································································································1

Configuring common Ethernet interface settings ···········································································································1

Splitting a 40-GE interface and combining 10-GE breakout interfaces·····························································2

Configuring basic settings of an Ethernet interface ······························································································3

Configuring the link mode of an Ethernet interface······························································································4

Configuring jumbo frame support ··························································································································4

Configuring physical state change suppression on an Ethernet interface··························································5

Performing a loopback test on an Ethernet interface····························································································6

Configuring generic flow control on an Ethernet interface··················································································6

Configuring PFC on an Ethernet interface ·············································································································7

Enabling energy saving features on an Ethernet interface ··················································································8

Setting the statistics polling interval························································································································9

Forcibly bringing up a fiber port ························································································································· 10

Configuring a Layer 2 Ethernet interface ···················································································································· 11

Configuring storm suppression ···························································································································· 11

Configuring storm control on an Ethernet interface··························································································· 12

Setting the MDIX mode of an Ethernet interface ································································································ 13

Testing the cable connection of an Ethernet interface······················································································· 14

Configuring a Layer 3 Ethernet interface or subinterface·························································································· 15

Setting the MTU for an Ethernet interface or subinterface ················································································ 15

Displaying and maintaining an Ethernet interface ····································································································· 15

Configuring loopback, null, and inloopback interfaces··························································································17

Configuring a loopback interface ································································································································ 17

Configuring a null interface ·········································································································································· 18

Configuring an inloopback interface··························································································································· 18

Displaying and maintaining loopback, null, and inloopback interfaces ································································· 18

Bulk configuring interfaces ········································································································································20

Configuration guidelines ··············································································································································· 20

Configuration procedure··············································································································································· 20

Displaying and maintaining bulk interface configuration·························································································· 21

Configuring the MAC address table ························································································································22

Overview········································································································································································· 22

How a MAC address entry is created ················································································································ 22

Types of MAC address entries····························································································································· 23

MAC address table configuration task list ·················································································································· 23

Configuring MAC address entries································································································································ 24

Adding or modifying a static or dynamic MAC address entry globally························································· 24

Adding or modifying a static or dynamic MAC address entry on an interface············································· 25

Adding or modifying a blackhole MAC address entry····················································································· 25

Adding or modifying a multiport unicast MAC address entry ········································································· 26

Disabling MAC address learning································································································································· 27

Disabling global MAC address learning············································································································ 27

Disabling MAC address learning on an interface····························································································· 27

Disabling MAC address learning on a VLAN···································································································· 28

Configuring the aging timer for dynamic MAC address entries··············································································· 28

Configuring the MAC learning limit on an interface·································································································· 29

Configuring the device to forward unknown frames after the MAC learning limit on an interface is reached··· 29

Assigning MAC learning priority to an interface ······································································································· 30

Enabling MAC address synchronization····················································································································· 31

Enable MAC address move notifications (for Release 2307)··················································································· 32

Enable MAC address move notifications (for Release 2310 and later) ·································································· 33

Enabling ARP fast update for MAC address moves··································································································· 34

Enabling SNMP notifications for the MAC address table ························································································· 35

Displaying and maintaining the MAC address table································································································· 35

MAC address table configuration example ················································································································ 36

Network requirements··········································································································································· 36

Configuration procedure ······································································································································ 37

Verifying the configuration··································································································································· 37

Configuring MAC Information ··································································································································38

Enabling MAC Information ··········································································································································· 38

Configuring the MAC Information mode····················································································································· 38

Configuring the MAC change notification interval ···································································································· 39

Configuring the MAC Information queue length ········································································································ 39

MAC Information configuration example···················································································································· 39

Configuration procedure ······································································································································ 40

Configuring Ethernet link aggregation ·····················································································································42

Basic concepts································································································································································ 42

Aggregation group, member port, and aggregate interface ··········································································· 42

Aggregation states of member ports in an aggregation group ······································································· 43

Operational key ···················································································································································· 43

Configuration types··············································································································································· 43

Link aggregation modes ······································································································································· 44

Aggregating links in static mode·································································································································· 44

Choosing a reference port ··································································································································· 44

Setting the aggregation state of each member port ·························································································· 45

Aggregating links in dynamic mode···························································································································· 45

LACP ······································································································································································· 46

How dynamic link aggregation works················································································································ 47

Edge aggregate interface ············································································································································· 49

Load sharing modes for link aggregation groups ······································································································ 49

Ethernet link aggregation configuration task list········································································································· 49

Configuring an aggregation group ····························································································································· 50

Configuring a static aggregation group············································································································· 51

Configuring a dynamic aggregation group······································································································· 52

Configuring an aggregate interface ···························································································································· 54

Configuring the description of an aggregate interface····················································································· 54

Specifying ignored VLANs on a Layer 2 aggregate interface ········································································· 55

Configuring the MTU of a Layer 3 aggregate interface ··················································································· 55

Setting the minimum and maximum numbers of Selected ports for an aggregation group·························· 55

Configuring the expected bandwidth of an aggregate interface ···································································· 56

Configuring an edge aggregate interface·········································································································· 57

Enabling BFD for an aggregation group ············································································································ 57

Shutting down an aggregate interface ··············································································································· 58

Restoring the default settings for an aggregate interface ················································································· 59

iii

Configuring load sharing for link aggregation groups······························································································ 59

Setting load sharing modes for link aggregation groups ················································································· 59

Enabling local-first load sharing for link aggregation······················································································· 60

Configuring per-flow load sharing algorithm settings for Ethernet link aggregation ····································· 61

Enabling link-aggregation traffic redirection··············································································································· 61

Configuration restrictions and guidelines ··········································································································· 61

Configuration procedure ······································································································································ 62

Displaying and maintaining Ethernet link aggregation ····························································································· 62

Ethernet link aggregation configuration examples····································································································· 63

Layer 2 static aggregation configuration example···························································································· 63

Layer 2 dynamic aggregation configuration example······················································································ 64

Layer 2 aggregation load sharing configuration example··············································································· 66

Layer 2 edge aggregate interface configuration example ··············································································· 69

Layer 3 static aggregation configuration example···························································································· 70

Layer 3 dynamic aggregation configuration example······················································································ 71

Layer 3 edge aggregate interface configuration example ··············································································· 73

Configuring port isolation··········································································································································75

Assigning a port to an isolation group························································································································ 75

Displaying and maintaining port isolation ·················································································································· 75

Port isolation configuration example···························································································································· 76

Configuration procedure ······································································································································ 76

Configuring spanning tree protocols ························································································································78

STP ··················································································································································································· 78

STP protocol packets ············································································································································· 78

Basic concepts in STP············································································································································ 79

Calculation process of the STP algorithm ··········································································································· 80

RSTP················································································································································································· 86

PVST················································································································································································· 86

MSTP················································································································································································ 86

MSTP features ························································································································································ 87

MSTP basic concepts ············································································································································ 87

How MSTP works ·················································································································································· 91

MSTP implementation on devices ························································································································ 92

Protocols and standards ················································································································································ 92

Spanning tree configuration task lists ·························································································································· 92

STP configuration task list····································································································································· 93

RSTP configuration task list··································································································································· 94

PVST configuration task list··································································································································· 95

MSTP configuration task list ································································································································· 96

Setting the spanning tree mode···································································································································· 96

Configuration restrictions and guidelines ··········································································································· 97

Configuration procedure ······································································································································ 97

Configuring an MST region ·········································································································································· 97

Configuring the root bridge or a secondary root bridge ·························································································· 98

Configuring the current device as the root bridge of a specific spanning tree·············································· 99

Configuring the current device as a secondary root bridge of a specific spanning tree······························ 99

Configuring the device priority····································································································································· 99

Configuring the maximum hops of an MST region ··································································································100

Configuring the network diameter of a switched network·······················································································100

Setting spanning tree timers········································································································································101

Configuration restrictions and guidelines ·········································································································101

Configuration procedure ····································································································································102

Setting the timeout factor·············································································································································102

Configuring the BPDU transmission rate····················································································································103

Configuring edge ports ···············································································································································103

Configuration restrictions and guidelines ·········································································································103

Configuration procedure ····································································································································104

Configuring path costs of ports ··································································································································104

Specifying a standard for the device to use when it calculates the default path cost ·································104

Configuring path costs of ports··························································································································107

Configuration example ·······································································································································107

Configuring the port priority ·······································································································································107

Configuring the port link type·····································································································································108

Configuration restrictions and guidelines ·········································································································108

Configuration procedure ····································································································································108

Configuring the mode a port uses to recognize and send MSTP packets ·····························································109

Enabling outputting port state transition information································································································109

Enabling the spanning tree feature ····························································································································110

Enabling the spanning tree feature in STP/RSTP/MSTP mode·······································································110

Enabling the spanning tree feature in PVST mode···························································································110

Performing mCheck······················································································································································111

Configuration restrictions and guidelines ·········································································································111

Configuration procedure ····································································································································111

Configuring Digest Snooping ·····································································································································112

Configuration restrictions and guidelines ·········································································································112

Configuration procedure ····································································································································113

Digest Snooping configuration example···········································································································113

Configuring No Agreement Check ····························································································································114

Configuration prerequisites ································································································································115

Configuration procedure ····································································································································115

No Agreement Check configuration example··································································································116

Configuring TC Snooping ···········································································································································116

Configuration restrictions and guidelines ·········································································································117

Configuration procedure ····································································································································117

Configuring protection functions ································································································································118

Enabling BPDU guard ·········································································································································118

Enabling root guard············································································································································118

Enabling loop guard ···········································································································································119

Configuring port role restriction·························································································································120

Configuring TC-BPDU transmission restriction··································································································120

Enabling TC-BPDU guard····································································································································121

Enabling BPDU drop ···········································································································································121

Displaying and maintaining the spanning tree·········································································································122

Spanning tree configuration example························································································································122

Configuration procedure ····································································································································123

PVST configuration example ·······································································································································126

Configuration procedure ····································································································································127

Configuring loop detection····································································································································· 130

Loop detection mechanism ·································································································································130

Loop detection interval········································································································································131

Loop protection actions·······································································································································131

Port status auto recovery·····································································································································132

Loop detection configuration task list·························································································································132

Enabling loop detection ··············································································································································132

Enabling loop detection globally·······················································································································132

Enabling loop detection on a port·····················································································································132

Configuring the loop protection action······················································································································133

Configuring the global loop protection action·································································································133

Configuring the loop protection action on a Layer 2 Ethernet interface ·······················································133

Configuring the loop protection action on a Layer 2 aggregate interface···················································133

Setting the loop detection interval ······························································································································134

Displaying and maintaining loop detection ··············································································································134

Loop detection configuration example·······················································································································134

Configuration procedure ····································································································································135

Configuring VLANs················································································································································· 138

VLAN frame encapsulation ································································································································138

Configuring basic VLAN settings································································································································139

Configuring basic settings of a VLAN interface ·······································································································140

Configuring port-based VLANs···································································································································141

Introduction to port-based VLAN ·······················································································································141

Assigning an access port to a VLAN ················································································································142

Assigning a trunk port to a VLAN······················································································································143

Assigning a hybrid port to a VLAN···················································································································144

Configuring IP subnet-based VLANs ··························································································································145

Introduction ··························································································································································145

Configuring an IP subnet-based VLAN··············································································································146

Configuring protocol-based VLANs ···························································································································147

Configuring a protocol-based VLAN·················································································································147

Displaying and maintaining VLANs···························································································································148

VLAN configuration examples····································································································································149

Port-based VLAN configuration example··········································································································149

IP subnet-based VLAN configuration example ·································································································150

Protocol-based VLAN configuration example···································································································152

Configuring super VLANs······································································································································· 156

Super VLAN configuration task list·····························································································································156

Creating a sub VLAN ··················································································································································156

Configuring a super VLAN··········································································································································156

Configuring a super VLAN interface··························································································································157

Displaying and maintaining super VLANs ················································································································158

Super VLAN configuration example ··························································································································158

Configuration procedure ····································································································································158

Configuring the private VLAN································································································································ 161

Configuration task list ··················································································································································161

Configuration restrictions and guidelines··················································································································162

Displaying and maintaining the private VLAN ·········································································································165

Private VLAN configuration examples ·······················································································································165

Private VLAN configuration example in promiscuous mode ··········································································165

Private VLAN configuration example in trunk promiscuous mode·································································168

Private VLAN configuration example in trunk promiscuous and trunk secondary modes ···························171

Secondary VLAN Layer 3 communication configuration example ································································175

Configuring MVRP ·················································································································································· 178

MRP ···············································································································································································178

MRP implementation ···········································································································································178

MRP messages ·····················································································································································179

MRP timers····························································································································································180

MVRP registration modes ············································································································································180

MVRP configuration task list········································································································································181

Configuration prerequisites·········································································································································182

Enabling MVRP·····························································································································································182

Configuring an MVRP registration mode···················································································································182

Configuring MRP timers···············································································································································183

Enabling GVRP compatibility······································································································································184

Displaying and maintaining MVRP ····························································································································184

MVRP configuration example ·····································································································································185

Configuration procedure ····································································································································185

Configuring QinQ··················································································································································· 195

How QinQ works················································································································································195

QinQ implementations········································································································································196

Restrictions and guidelines··········································································································································197

Enabling QinQ·····························································································································································197

Configuring transparent transmission for VLANs······································································································197

Configuring the TPID in VLAN tags····························································································································198

Configuring the CVLAN TPID ·····························································································································199

Configuring the SVLAN TPID······························································································································199

Setting the 802.1p priority in SVLAN tags ···············································································································199

Displaying and maintaining QinQ ····························································································································201

QinQ configuration example······································································································································201

Configuration procedure ····································································································································202

VLAN transparent transmission configuration example ···························································································204

Configuration procedure ····································································································································204

Configuring VLAN mapping ·································································································································· 206

Application scenario of one-to-one and many-to-one VLAN mapping ··························································206

Application scenario of one-to-two and two-to-two VLAN mapping······························································208

VLAN mapping implementations ·······················································································································208

General configuration restrictions and guidelines····································································································211

VLAN mapping configuration task list ·······················································································································211

Configuring one-to-one VLAN mapping ····················································································································212

Configuring many-to-one VLAN mapping ·················································································································213

Configuring many-to-one VLAN mapping in a network with dynamic IP address assignment···················213

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Configuring many-to-one VLAN mapping in a network with static IP address assignment·························215

Configuring one-to-two VLAN mapping ····················································································································217

Configuring two-to-two VLAN mapping·····················································································································218

Displaying and maintaining VLAN mapping············································································································219

VLAN mapping configuration examples ···················································································································219

One-to-one and many-to-one VLAN mapping configuration example···························································219

One-to-two and two-to-two VLAN mapping configuration example ······························································225

Configuring PBB······················································································································································ 228

PBB network model ·············································································································································228

Terminology ·························································································································································228

PBB frame format·················································································································································229

PBB frame forwarding·········································································································································231

Feature and hardware compatibility··························································································································231

PBB configuration task list ···········································································································································231

Enabling L2VPN ···························································································································································232

Creating a PBB VSI ······················································································································································232

Configuring the frame encapsulation type ················································································································232

Configuring a B-VLAN for a PBB VSI ·························································································································233

Configuring an uplink port··········································································································································233

Configuring a downlink port·······································································································································234

Displaying and maintaining PBB································································································································234

PBB configuration example ·········································································································································235

Configuration procedures···································································································································235

Troubleshooting····························································································································································236

Symptom·······························································································································································236

Analysis ································································································································································236

Solution·································································································································································237

Configuring LLDP····················································································································································· 238

Basic concepts ·····················································································································································238

Working mechanism···········································································································································243

LLDP configuration task list ··········································································································································244

Configuring LLDP basics ··············································································································································245

Enabling LLDP ······················································································································································245

Configuring the LLDP bridge mode····················································································································245

Setting the LLDP operating mode ·······················································································································246

Setting the LLDP re-initialization delay ··············································································································247

Enabling LLDP polling··········································································································································247

Configuring the advertisable TLVs ·····················································································································247

Configuring the management address and its encoding format····································································249

Setting other LLDP parameters····························································································································250

Setting an encapsulation format for LLDP frames·····························································································251

Configuring CDP compatibility···································································································································251

Configuration procedure ····································································································································252

Configuring DCBX························································································································································253

DCBX configuration task list ·······························································································································254

Enabling LLDP and DCBX TLV advertising ········································································································254

viii

Configuring APP parameters······························································································································255

Configuring ETS parameters ······························································································································257

Configuring PFC parameters······························································································································258

Configuring the DCBX version ···························································································································259

Configuring LLDP trapping and LLDP-MED trapping ································································································260

Displaying and maintaining LLDP·······························································································································261

LLDP configuration examples ······································································································································261

Basic LLDP configuration example·····················································································································261

DCBX configuration example·····························································································································265

Configuring service loopback groups ··················································································································· 271

Displaying and maintaining service loopback groups·····························································································272

Service loopback group configuration example·······································································································272

Configuration procedure ····································································································································272

Configuring cut-through Layer 2 forwarding········································································································· 273

Index ········································································································································································ 274

Configuring Ethernet interfaces

The switch series supports Ethernet interfaces, management Ethernet interfaces, Console interfaces, and

USB interfaces. For the interface types and the number of interfaces supported by a switch model, see the

installation guide.

This document describes how to configure management Ethernet interfaces and Ethernet interfaces.

Configuring a management Ethernet interface

A management interface uses an RJ-45 connector. You can connect the interface to a PC for software

loading and system debugging, or connect it to a remote NMS for remote system management.

To configure a management Ethernet interface:

Ste

Command

Remarks

1. Enter system view. system-view N/A

2. Enter management

Ethernet interface view.

interface M-GigabitEthernet

interface-number N/A

3. (Optional.) Set the

interface description. description text The default setting is

M-GigabitEthernet0/0/0 Interface.

4. (Optional.) Shut down

the interface. shutdown By default, the management Ethernet

interface is up.

Ethernet interface naming conventions

The Ethernet interfaces are named in the format of interface type A/B/C. The letters that follow the

interface type represent the following elements:

•A—IRF member ID. If the switch is not in an IRF fabric, A is 1 by default.

•B—Card slot number. B is always 0, which indicates the interface is a fixed interface of the switch.

•C—Port index.

A 10-GE breakout interface split from a 40-GE interface is named in the format of interface type

A/B/C:D. A/B/C is the interface number of the 40-GE interface and D is the number of the 10-GE

breakout interface, which is in the range of 1 to 4. For information about splitting a 40-GE interface, see

"Splitting a 40-GE interface and combining 10-GE breakout interfaces."

Configuring common Ethernet interface settings

This section describes the settings common to Layer 2 and Layer 3 Ethernet interfaces. You can set an

Ethernet port as a Layer 3 interface by using the port link-mode route command. For more information,

see "Configuring the link mode of an Ethernet interface." For more information about the settings specific

to Layer 2 and Layer 3 Ethernet interfaces, see "Configuring a Layer 2 Ethernet interface" and

"Configuring a Layer 3 Ethernet interface or subinterface."

Splitting a 40-GE interface and combining 10-GE breakout

interfaces

Splitting a 40-GE QSFP+ interface into four 10-GE breakout interfaces

You can use a 40-GE QSFP+ interface as a single interface. To improve port density, reduce costs, and

improve network flexibility, you can also split a 40-GE QSFP+ interface into four 10-GE breakout

interfaces.

To split a 40-GE interface into four 10-GE breakout interfaces:

Step Command Remarks

1. Enter system view. system-view N/A

2. Enter 40-GE interface view. interface interface-type

interface-number N/A

3. Split the 40-GE interface into

four 10-GE breakout

interfaces. using tengige

By default, a 40-GE interface is not

split and operates as a single

interface.

The 10-GE breakout interfaces split

from a 40-GE interface support the

same configuration and attributes as

common 10-GE interfaces, except

that they are numbered in a different

way.

4. Reboot the device. N/A

After creating the four 10-GE

breakout interfaces, the system

removes the 40-GE interface.

A 40-GE interface split into four

10-GE breakout interfaces must use a

dedicated 1-to-4 cable.

Combining four 10-GE breakout interfaces into a 40-GE interface

If you need higher bandwidth, you can combine the four 10-GE breakout interfaces into a 40-GE

interface.

To combine four 10-GE breakout interfaces into a 40-GE interface:

Step Command Remarks

1. Enter system view. system-view N/A

2. Enter the view of any 10-GE

breakout interface split from a

40-GE interface.

interface interface-type

interface-number N/A

3. Combine the four 10-GE

breakout interfaces into a

40-GE interface. using fortygige

By default, a 40-GE interface is not

split and operates as a single

interface.

Step Command Remarks

4. Reboot the device. N/A

After creating the 40-GE interface,

the system removes the four 10-GE

breakout interfaces.

After you combine the four 10-GE

breakout interfaces, replace the

dedicated 1-to-4 cable with a

dedicated 1-to-1 cable or a 40-GE

transceiver module. For more

information about the cable or

transceiver module, see the

installation guides.

Configuring basic settings of an Ethernet interface

Configuring an Ethernet interface

Step Command Remarks

1. Enter system view. system-view N/A

2. Enter Ethernet interface

view.

interface interface-type

interface-number N/A

3. Set the interface

description. description text

The default setting is in the format of

interface-name Interface. For example,

Ten-GigabitEthernet1/0/1 Interface.

4. Set the duplex mode of

the Ethernet interface. duplex { auto | full | half }

The default setting is auto for Ethernet

interfaces.

Copper ports operating at 1000 Mbps or

10 Gbps and fiber ports do not support the

half keyword.

5. Set the port speed. speed { 10 | 100 |1000 |

10000 |40000 | auto }

The default setting is auto for Ethernet

interfaces.

Fiber ports do not support the 10 or 100

keyword.

6. Configure the expected

bandwidth of the

interface.

bandwidth bandwidth-value

By default, the expected bandwidth (in

kbps) is the interface baud rate divided by

1000.

7. Restore the default

settings for the Ethernet

interface.

default N/A

8. Bring up the Ethernet

interface. undo shutdown By default, Ethernet interfaces are in up

state.

Configuring an Ethernet subinterface

Step Command Remarks

1. Enter system view. system-view N/A

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