Cisco Nexus 1000V User manual

Cisco Nexus 1000V for VMware vSphere Interface Configuration
Guide, Release 5.x
First Published: August 22, 2014
Last Modified: November 05, 2015
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CONTENTS
CHAPTER 1 New and Changed Information 1
New and Changed Information 1
CHAPTER 2 Overview 7
Information About Interfaces 7
Ethernet Interfaces 7
Virtual Ethernet Interfaces 8
Management Interface 8
Port Channel Interfaces 8
VEM Management of LACP 8
Simplifying the Interface Configuration with Port Profiles 8
High Availability for Interfaces 9
CHAPTER 3 Configuring Interface Parameters 11
Information About the Basic Interface Parameters 11
Description 11
Speed and Duplex Modes 11
Port MTU Size 12
Administrative Status 12
Cisco Discovery Protocol 12
Port Channel 12
Guidelines and Limitations 12
Configuring the Basic Interface Parameters 13
Specifying an Interface to Configure 13
Configuring a Description 14
Configuring the Interface Speed and Duplex Modes 15
Configuring the MTU Size for an Ethernet Interface 16
Shutting Down and Activating an Interface 17
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Enabling or Disabling CDP 18
Clearing the Interface Counters 19
Verifying the Basic Interface Parameters 20
Feature History for Basic Interface Parameters 20
CHAPTER 4 Configuring Layer 2 Interfaces 23
Information About Access and Trunk Interfaces 23
Access and Trunk Interfaces 23
IEEE 802.1Q Encapsulation 24
High Availability 25
Prerequisites for VLAN Trunking 25
Guidelines and Limitations 25
Default Settings 26
Configuring Access and Trunk Interfaces 26
Configuring a LAN Interface as a Layer 2 Access Port 26
Configuring Trunk Ports 27
Configuring the Native VLAN for 802.1Q Trunking Ports 28
Configuring the Allowed VLANs for Trunking Ports 29
Tagging Native VLAN Traffic 30
Verifying the Interface Configuration 31
Monitoring the Interface Configuration 32
Configuration Examples for Access and Trunk Port Mode 32
Feature History for Layer 2 Interface Parameters 33
CHAPTER 5 Configuring Virtual Ethernet Interfaces 35
Information About vEthernet Interfaces 35
Guidelines and Limitations 36
Default Settings 36
Configuring vEthernet Interfaces 36
Configuring Global vEthernet Properties 36
Configuring a vEthernet Access Interface 38
Configuring a Private VLAN on a vEthernet Interface 39
Enabling or Disabling a vEthernet Interface 40
Verifying the vEthernet Interface Configuration 41
Monitoring the vEthernet Interface Configuration 43
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Contents

Configuration Examples for vEthernet Interfaces 44
Feature History for vEthernet Interfaces 44
CHAPTER 6 Configuring Port Channels 45
Information About Port Channels 46
Port Channels 46
Compatibility Checks 46
Load Balancing Using Port Channels 48
LACP 49
VEM Management of LACP 50
Port Channel Modes 50
LACP ID Parameters 51
LACP Marker Responders 52
LACP-Enabled and Static Port Channels Differences 52
vPC Host Mode 53
Subgroup Creation 54
Static Pinning 54
MAC Pinning 54
MAC Pinning Relative 55
Network State Tracking for vPC-HM 56
High Availability 57
Prerequisites for Port Channels 57
Guidelines and Limitations 57
Default Settings 58
Configuring Port Channels 59
Creating a Port Profile for a Port Channel 59
Connecting to a Single Upstream Switch 60
Connecting to Multiple Upstream Switches 61
Manually Configuring Interface Subgroups 65
Pinning a vEthernet Interface to a Subgroup 66
Pinning a Control or Packet VLAN to a Subgroup 67
Migrating a Channel Group to a Port Profile 69
Migrating Port Profile Types in a Port Profile 70
Configuring Network State Tracking for vPC-HM 71
Configuring Static Pinning for an Interface 72
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Contents

Removing a Port Channel Group from a Port Profile 73
Shutting Down and Restarting a Port Channel Interface 74
Adding a Description to a Port Channel Interface 75
Configuring Port Channel Load Balancing 76
Configuring the Speed and Duplex Settings for a Port Channel Interface 77
Restoring the Default Load-Balancing Method 78
Configuring an LACP Port Channel 78
Configuring VEM Management of LACP 80
Verifying the Port Channel Configuration 82
Monitoring Port Channels 83
Configuration Examples for Port Channels 84
Feature History for Port Channels 84
APPENDIX A Supported RFCs 87
Supported RFCs 87
APPENDIX B Interface Configuration Limits 89
Interface Configuration Limits 89
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Contents

CHAPTER 1
New and Changed Information
This chapter contains the following sections:
•New and Changed Information, page 1
New and Changed Information
This section lists new and changed content in this document by software release.
To find additional information about new features or command changes, see the Cisco Nexus 1000V Release
Notes and Cisco Nexus 1000V Command Reference.
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Table 1: New and Changed Features for the Cisco Nexus 1000V Interface Configuration Guide
Where DocumentedChanged in ReleaseDescriptionFeature
Configuring Port Channels,
on page 45
4.2(1)SV2(1.1)The interface
level
configuration
mode does
not support
sub-group
cdp and
manual
options for
port-channel
vPC-HM
configuration.
Sub-group
cdp and
manual
options for
port-channel
vPC-HM
configuration
are supported
on the
port-profile
level
configuration.
Port channel vPC-HM
Configuring Port Channels,
on page 45
4.2(1)SV1(4a)You can
assign up to
seven backup
subgroups
when pinning
the primary
subgroup.
Backup subgroups
Configuring Port Channels,
on page 45
4.2(1)SV1(4a)The subgroup
numbering
begins at zero
and is not tied
to the vmnic
number.
Port channel relative
numbering
Configuring Port Channels,
on page 45
4.2(1)SV1(4)Pinpoints link
failures on a
port channel
configured
for vPC-HM.
Network state tracking for
vPC-HM
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New and Changed Information
New and Changed Information

Where DocumentedChanged in ReleaseDescriptionFeature
Configuring Port Channels,
on page 45
4.2(1)SV1(4)You can
offload
operation of
the LACP
protocol from
the VSM to
the VEMs.
VEM management of LACP
Configuring Port Channels,
on page 45
4.2(1)SV1(4)You can
enable the
LACP port
channel
function by
turning on the
feature using
the feature
lacp
command.
LACP
Configuring Interface
Parameters, on page 11
4.2(1)SV1(4)The system
jumbo MTU
value is fixed
at 9000 and
cannot be
changed.
System Jumbo MTU
Configuring Interface
Parameters, on page 11
4.2(1)SV1(4)You can
configure an
interface
MTU
between 1500
and 9000.
Interface MTU
Configuring Virtual Ethernet
Interfaces, on page 35
4.2(1)SV1(4)vEthernet
interfaces are
now mapped
to connected
ports by
MAC
addresses as
well as the
DVPort
number.
Mapping vEthernet interfaces
to connected ports
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New and Changed Information
New and Changed Information

Where DocumentedChanged in ReleaseDescriptionFeature
Configuring Virtual Ethernet
Interfaces, on page 35
4.2(1)SV1(4)You can
enable or
disable the
automatic
vEthernet
interface
controls by
deleting
unused
vEthernet
interfaces,
purging
manual
vEthernet
configurations,
and creating
vEthernet
interfaces.
Global vEthernet interface
controls
Interface Configuration
Limits, on page 89
4.0(4)SV1(2)Configuration
limits for
vEthernet
interfaces,
vEthernet
trunks, and
port profiles
were added.
Configuration limits
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New and Changed Information
New and Changed Information