H3C S5810 Series User manual

H3C S5810 Series Ethernet Switches
Operation Manual
Hangzhou H3C Technologies Co., Ltd.
http://www.h3c.com
Manual Version: 6W100-20090626
Product Version: Release 1102

Copyright © 2009, Hangzhou H3C Technologies Co., Ltd. and its licensors
All Rights Reserved
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, , Aolynk, , H3Care, , TOP G, , IRF, NetPilot, Neocean, NeoVTL,
SecPro, SecPoint, SecEngine, SecPath, Comware, Secware, Storware, NQA, VVG, V2G, VnG, PSPT,
XGbus, N-Bus, TiGem, InnoVision 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.
Technical Support
[e-mail]
http://www.h3c.com

About This Manual
Organization
H3C S5810 Series Ethernet Switches Operation Manual is organized as follows:
Volume Features
00-Product
Overview Product Overview Acronyms
Ethernet Interface Link Aggregation Port Isolation Loopback Interface
and Null Interface
DLDP LLDP MSTP Smart Link
01-Access
Volume
Monitor Link VLAN GVRP Port Mirroring
IP Addressing IP Performance
Optimization ARP DHCP
02-IP Services
Volume DNS FTP and TFTP
03-IP Routing
Volume IP Routing Overview Static Routing
04-Multicast
Volume Mulitcast Overview IGMP Snooping Multicast VLAN
05-QoS Volume QoS
AAA IP Source Guard SSH2.0 PKI
06-Security
Volume SSL Public Key ACL
Login Basic System
Configuration Device Management File System Management
HTTP SNMP RMON
MAC Address
Table Management
System
Maintaining and
Debugging
Information
Center Track NTP
07-System
Volume
VRRP Cluster
Management Stack Management Automatic Configuration
Conventions
The manual uses the following conventions:
Command conventions
Convention Description
Boldface The keywords of a command line are in Boldface.
italic Command arguments are in italic.
[ ] Items (keywords or arguments) in square brackets [ ] are optional.
{ x | y | ... }
Alternative items are grouped in braces and separated by vertical bars.
One is selected.

Convention Description
[ x | y | ... ]
Optional alternative items are grouped in square brackets and
separated by vertical bars. One or none is selected.
{ x | y | ... } *
Alternative items are grouped in braces and separated by vertical bars.
A minimum of one or a maximum of all can be selected.
[ x | y | ... ] *
Optional alternative items are grouped in square brackets and
separated by vertical bars. Many or none can be selected.
&<1-n> The argument(s) before the ampersand (&) sign can be entered 1 to n
times.
# A line starting with the # sign is comments.
GUI conventions
Convention Description
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 Description
Means reader be extremely careful. Improper operation may cause
bodily injury.
Means reader be careful. Improper operation may cause data loss or
damage to equipment.
Means an action or information that needs special attention to ensure
successful configuration or good performance.
Means a complementary description.
Means techniques helpful for you to make configuration with ease.
Related Documentation
In addition to this manual, each H3C S5810 Series Ethernet Switch documentation set includes the
following:
Manual Description
H3C S5810 Series Ethernet Switches
Installation Manual
It introduces the installation procedure,
commissioning, maintenance and monitoring of
the S5810 Series Ethernet switches.
H3C S5810 Series Ethernet Switches Command
Manual–Release 1102
It includes Feature List and Command Index,
Access Volume, IP Services Volume, IP Routing
Volume, IP Multicast Volume, QoS Volume,
Security Volume and System Volume
commands.

Obtaining Documentation
You can access the most up-to-date H3C product documentation on the World Wide Web at this URL:
http://www.h3c.com.
The following are the columns from which you can obtain different categories of product documentation:
[Products & Solutions]: Provides information about products and technologies, as well as solutions.
[Technical Support & Document > Technical Documents]: Provides several categories of product
documentation, such as installation, operation, and maintenance.
[Technical Support & Document > Product Support > Software]: Provides the documentation released
with the software version.
Documentation Feedback
You can e-mail your comments about product documentation to [email protected].
We appreciate your comments.

i
Table of Contents
1 Obtaining the Documentation··················································································································1-1
H3C Website···········································································································································1-1
Software Release Notes ·························································································································1-1
2 Product Features·······································································································································2-1
Introduction to Product····························································································································2-1
Feature Lists ···········································································································································2-1
3 Features······················································································································································3-1
Access Volume ·······································································································································3-1
IP Services Volume·································································································································3-3
IP Routing Volume··································································································································3-4
IP Multicast Volume ································································································································3-4
QoS Volume············································································································································3-5
Security Volume······································································································································3-5
System Volume·······································································································································3-6

1-1
1 Obtaining the Documentation
H3C Technologies Co., Ltd. provides various ways for you to obtain documentation, through which you
can obtain the product documentations and those concerning newly added new features. The
documentations are available in one of the following ways:
zH3C website
zSoftware release notes
H3C Website
Perform the following steps to query and download the product documentation from the H3C website.
Table 1-1 Download documentation from the H3C website
How to apply for an
account
Access the homepage of H3C at http://www.h3c.com and click
Registration at the top right. In the displayed page, provide your
information and click Submit to register.
How to get
documentation
In the homepage, select Technical Support & Document > Technical
Documents from the navigation bar at the top.
Select a product for its documents.
Software Release Notes
With software upgrade, new software features may be added. You can acquire the information about
the newly added software features through software release notes.

2-1
2 Product Features
Introduction to Product
The H3C S5810 series switches (hereinafter referred to as the S5810 series) are Gigabit Ethernet
switches developed by H3C Technologies Co., Ltd. The S5810 series provide rich features. They
provide the enhanced forwarding function and 10GE ports. Optimized for data center applications, the
S5810 series provide powerful egress/ingress packet buffering capabilities, powerful IPv4/IPv6
QoS/ACL features, and double pluggable redundant power modules, thus meeting top-of-rack
application requirements in the data center.
Feature Lists
The S5810 series support abundant features and the related documents are divided into the volumes
as listed in Table 2-1.
Table 2-1 Feature list
Volume Features
Ethernet Interface Link Aggregation Port Isolation Loopback
Interface and Null
Interface
DLDP LLDP MSTP Smart Link
01-Access
Volume
Monitor Link VLAN GVRP Port Mirroring
IP Addressing IP Performance
Optimization ARP DHCP
02-IP Services
Volume DNS FTP and TFTP
03-IP Routing
Volume IP Routing Overview Static Routing
04-Multicast
Volume Mulitcast Overview IGMP Snooping Multicast VLAN
05-QoS Volume QoS
AAA IP Source Guard SSH2.0 PKI
06-Security
Volume SSL Public Key ACL
Login Basic System
Configuration Device Management File System Management
HTTP SNMP RMON
MAC Address
Table
Management
System
Maintaining and
Debugging
Information
Center Track NTP
07-System
Volume
VRRP Cluster
Management Stack Management Automatic Configuration

3-1
3 Features
The following sections provide an overview of the main features of each module supported by the
S5810 series.
Access Volume
Table 3-1 Features in Access volume
Features Description
Ethernet Interface
This document describes:
zBasic Ethernet Interface Configuration
zCombo Port Configuration
zConfiguring Flow Control on an Ethernet Interface
zConfiguring the Suppression Time of Physical-Link-State Change on
an Ethernet Interface
zConfiguring Loopback Testing on an Ethernet Interface
zConfiguring a Port Group
zConfiguring Storm Suppression
zSetting the Interval for Collecting Ethernet Interface Statistics
zEnabling Forwarding of Jumbo Frames
zEnabling Loopback Detection on an Ethernet Interface
zConfiguring the MDI Mode for an Ethernet Interface
zTesting the Cable on an Ethernet Interface
zConfiguring the Storm Constrain Function on an Ethernet Interface
Link aggregation
Link aggregation aggregates multiple physical Ethernet ports into one
logical link. This document describes:
zBasic Concepts of Link Aggregation
zConfiguring a Static Aggregation Group
zConfiguring a Dynamic Aggregation Group
zConfiguring an Aggregate Interface
zConfiguring a Load Sharing Mode for Load-Sharing Link Aggregation
Groups
Port Isolation
The port isolation feature allows you to isolate different ports within the
same VLAN. This document describes:
zIntroduction to Port Isolation
zConfiguring the Isolation Group
Loopback Interface and
Null Interface
This document describes:
zIntroduction to Loopback Interface
zConfiguring a Loopback Interface
zIntroduction to Null Interface
zConfiguring Null 0 Interface

3-2
Features Description
DLDP
In the use of fibers, link errors, namely unidirectional links, are likely to
occur. DLDP is designed to detect such errors. This document describes:
zDLDP Introduction
zEnabling DLDP
zSetting DLDP Mode
zSetting the Interval for Sending Advertisement Packets
zSetting the DelayDown Timer
zSetting the Port Shutdown Mode
zConfiguring DLDP Authentication
zResetting DLDP State
LLDP
LLDP enables a device tomaintain and manage its own and its immediate
neighbor’s device information, based on which the network management
system detects and determines the conditions of the communications
links. This document describes:
zIntroduction to LLDP
zPerforming Basic LLDP Configuration
zConfiguring LLDP Trapping
MSTP
MSTP is used to eliminate loops in a LAN. It is compatible with STP and
RSTP. This document describes:
zIntroduction to MSTP
zConfiguring the Root Bridge
zConfiguring Leaf Nodes
zPerforming mCheck
zConfiguring the VLAN Ignore Feature
zConfiguring Digest Snooping
zConfiguring No Agreement Check
zConfiguring Protection Functions
Smart Link
Smart Link is a solution for active-standby link redundancy backup and
rapid transition in dual-uplink networking. This document describes:
zSmart Link Overview
zConfiguring a Smart Link Device
zConfiguring an Associated Device
Monitor Link
Monitor link is a port collaboration function used to enable a device to be
aware of the up/down state change of the ports on an indirectly connected
link. This document describes:
zMonitor Link Overview
zConfiguring Monitor Link
VLAN
Using the VLAN technology, you can partition a LAN into multiple logical
LANs. This document describes:
zIntroduction to VLAN
zTypes of VLAN
zIsolate-user-vlan configuration
zIntroduction and Configuration of Voice VLAN
GVRP
GVRP is a GARP application. This document describes:
zGARP overview
zGVRP configuration
zGARP Timers configuration

3-3
Features Description
Port Mirroring
Port mirroring copies packets passing through a port to another port
connected with a monitoring device for packet analysis to help implement
network monitoring and troubleshooting. This document describes:
zPort Mirroring overview
zLocal port mirroring configuration
zRemote port mirroring configuration
IP Services Volume
Table 3-2 Features in the IP Services volume
Features Description
IP Address
An IP address is a 32-bit address allocated to a network interface on a
device that is attached to the Internet. This document describes:
zIntroduction to IP addresses
zIP address configuration
IP Performance
Optimization
In some network environments, you need to adjust the IP parameters to
achieve best network performance. This document describes:
zEnabling Reception and Forwarding of Directed Broadcasts to a
Directly Connected Network
zConfiguring TCP Attributes
zConfiguring ICMP to Send Error Packets
ARP
Address Resolution Protocol (ARP) is used to resolve an IP address into a
data link layer address. This document describes:
zARP Overview
zConfiguring ARP
zConfiguring Gratuitous ARP
zARP Attack Defense configuration
DHCP
DHCP is built on a client-server model, in which the client sends a
configuration request and then the server returns a reply to send
configuration parameters such as an IP address to the client. This
document describes:
zDHCP Client configuration
zDHCP Snooping configuration
zBOOTP Client configuration
DNS
Used in the TCP/IP application, Domain Name System (DNS) is a
distributed database which provides the translation between domain name
and the IP address. This document describes:
zConfiguring the DNS Client
FTP and TFTP
The File Transfer Protocol (FTP) is an application layer protocol for sharing
files between server and client over a TCP/IP network. The Trivial File
Transfer Protocol (TFTP) provides functions similar to those provided by
FTP. This document describes:
zFTP Configuration
zTFTP Configuration

3-4
IP Routing Volume
Table 3-3 Features in the IP Routing volume
Features Description
IP Routing Overview This document describes:
zIntroduction to IP routing and routing table
zRouting protocol overview
Static Routing
A static route is manually configured by the administrator. The proper
configuration and usage of static routes can improve network
performance and ensure bandwidth for important network applications.
This document describes:
zStatic route configuration
zDetecting Reachability of the Static Route’s Nexthop
IP Multicast Volume
Table 3-4 Features in IP Multicast volume
Features Description
Multicast Overview
This document describes the main concepts in multicast:
zIntroduction to Multicast
zMulticast Models
zMulticast Architecture
zMulticast Packets Forwarding Mechanism
IGMP Snooping
Running at the data link layer, IGMP Snooping is a multicast control
mechanism on the Layer 2 Ethernet switch and it is used for multicast
group management and control. This document describes:
zConfiguring Basic Functions of IGMP Snooping
zConfiguring IGMP Snooping Port Functions
zConfiguring IGMP Snooping Querier
zConfiguring IGMP Snooping Proxying
zConfiguring IGMP Snooping Policy
Multicast VLAN Multicast VLAN configuration zConfiguring sub-VLAN-based multicast VLAN
zConfiguring port-based multicast VLAN

3-5
QoS Volume
Table 3-5 Features in the QoS ACL volume
Features Description
QoS
This document describes:
zQoS overview
zQoS policy configuration
zPriority mapping configuration
zTraffic policing Configuration
zTraffic shaping Configuration
zAggregation CAR Configuration
zCongestion management
zTraffic mirroring configuration
zPort buffer configuration
Security Volume
Table 3-6 Features in the Security volume
Features Description
AAA
Authentication, Authorization and Accounting (AAA) provide a uniform
framework used for configuring these three security functions to
implement the network security management. This document describes:
zIntroduction to AAA, RADIUS and HWTACACS
zAAA configuration
zRADIUS configuration
zHWTACACS configuration
IP Source Guard
By filtering packets on a per-port basis, IP source guard prevents illegal
packets from traveling through, thus improving the network security. This
document describes:
zConfiguring a Static Binding Entry
zConfiguring Dynamic Binding Function
SSH2.0
SSH ensures secure login to a remote device in a non-secure network
environment. By encryption and strong authentication, it protects the
device against attacks. This document describes:
zConfiguring Asymmetric Keys
zConfiguring the Device as an SSH Server
zConfiguring the Device as an SSH Client
zConfiguring an SFTP Server
zConfiguring an SFTP Client
PKI
The Public Key Infrastructure (PKI) is a hierarchical framework designed
for providing information security through public key technologies and
digital certificates and verifying the identities of the digital certificate
owners. This document describes PKI related configuration.
SSL Secure Sockets Layer (SSL) is a security protocol providing secure
connection service for TCP-based application layer protocols, this
document describes SSL related configuration.
Public Key
Configuration This document describes Public Key Configuration.

3-6
Features Description
ACL
An ACL is used for identifying traffic based on a series of preset matching
criteria. This document describes:
zACL overview and ACL types
zACL configuration
zACL Application for Packet Filtering
System Volume
Table 3-7 Features in the System volume
Features Description
Login
Upon logging into a device, you can configure user interface properties
and manage the system conveniently. This document describes:
zHow to log in to your Ethernet switch
zIntroduction to the user interface and common configurations
zLogging In Through the Console Port
zLogging In Through Telnet
zLogging In Using Modem
zLogging in Through Web-based Network Management System
zLogging In Through NMS
zSpecifying Source IP address/Interface for Telnet Packets
zControlling Login Users
Basic System
Configuration
Basic system configuration involves the configuration of device name,
system clock, welcome message, user privilege levels and so on. This
document describes:
zConfiguration display
zBasic configurations
zCLI features
Device Management
Through the device management function, you can view the current
condition of your device and configure running parameters. This
document describes:
zDevice management overview
zConfiguring the Exception Handling Method
zRebooting a device
zConfiguring the scheduled automatic execution function
zUpgrading Device Software
zConfiguring Temperature Alarm Thresholds for a Card
zClearing the 16-bit interface indexes not used in the current system
zIdentifying and Diagnosing Pluggable Transceivers
File System
Management
A major function of the file system is to manage storage devices, mainly
including creating the file system, creating, deleting, modifying and
renaming a file or a directory and opening a file. This document
describes:
zFile system management
zConfiguration File Management
HTTP
Hypertext Transfer Protocol (HTTP) is used for transferring web page
information across the Internet. This document describes:
zHTTP Configuration
zHTTPS Configuration

3-7
Features Description
SNMP
Simple network management protocol (SNMP) offers a framework to
monitor network devices through TCP/IP protocol suite. This document
describes:
zSNMP overview
zBasic SNMP function configuration
zSNMP log configuration
zTrap configuration
zMIB style configuration
RMON
RMON provides an efficient means of monitoring subnets and allows
SNMP to monitor remote network devices in a more proactive and
effective way. This document describes:
zRMON overview
zRMON configuration
MAC Address Table
Management
A switch maintains a MAC address table for fast forwarding packets. This
document describes:
zMAC address table overview
zConfiguring MAC Address Entries
zConfiguring MAC Address Aging Timer
zConfiguring the MAC Learning Limit
System Maintenance
and Debugging
For the majority of protocols and featuressupported, the system provides
corresponding debugging information to help users diagnose errors. This
document describes:
zMaintenance and debugging overview
zMaintenance and debugging configuration
Information Center
As the system information hub, Information Center classifies and
manages all types of system information. This document describes:
zInformation Center Overview
zSetting to Output System Information to the Console
zSetting to Output System Information to a Monitor Terminal
zSetting to Output System Information to a Log Host
zSetting to Output System Information to the Trap Buffer
zSetting to Output System Information to the Log Buffer
zSetting to Output System Information to the SNMP Module
zConfiguring Synchronous Information Output
zDisabling a Port from Generating Link Up/Down Logging Information
Track
The track module is used to implement collaboration between different
modules through established collaboration objects. The detection
modules trigger the application modules to perform certain operations
through the track module. This document describes:
zTrack Overview
zConfiguring Collaboration Between the Track Module and the
Detection Modules
zConfiguring Collaboration Between the Track Module and the
Application Modules
NTP
Network Time Protocol (NTP) is the TCP/IP that advertises the accurate
time throughout the network. This document describes:
zNTP overview
zConfiguring the Operation Modes of NTP
zConfiguring Optional Parameters of NTP
zConfiguring Access-Control Rights
zConfiguring NTP Authentication

3-8
Features Description
VRRP
Virtual Router Redundancy Protocol (VRRP) combines a group of
switches (including a master and multiple backups) on a LAN into a
virtual router called VRRP group. VRRP streamlines host configuration
while providing high reliability. This document describes:
zVRRP overview
zIPv4-Based VRRP configuration
zIPv6-Based VRRP configuration
Cluster Management
A cluster is a group of network devices. Cluster management is to
implement management of large numbers of distributed network devices.
This document describes:
zCluster Management Overview
zConfiguring the Management Device
zConfiguring the Member Devices
zConfiguring Access Between the Management Device and Its
Member Devices
zAdding a Candidate Device to a Cluster
zConfiguring Advanced Cluster Functions
Stack Management
A stack is a set of network devices. Administrators can group multiple
network devices into a stack and manage them as a whole. Therefore,
stack management can help reduce customer investments and simplify
network management. This document describes:
zStack Configuration Overview
zConfiguring the Master Device of a Stack
zConfiguring Stack Ports of a Slave Device
zLogging In to the CLI of a Slave from the Master
Automatic Configuration
Automatic configuration enables a device to automatically obtain and
execute the configuration file when it starts up without loading the
configuration file. This document describes:
zIntroduction to Automatic Configuration
zTypical Networking of Automatic Configuration
zHow Automatic Configuration Works

Appendix A Acronyms
#ABCDEFGHIKLMNOPQRSTUVWXZ
Acronyms Full spelling
# Return
10GE Ten-GigabitEthernet
A Return
AAA Authentication, Authorization and Accounting
ABC Activity Based Costing
ABR Area Border Router
AC Alternating Current
ACK ACKnowledgement
ACL Access Control List
ADSL Asymmetric Digital Subscriber Line
AFI Address Family Identifier
ALG Application Layer Gateway
AM accounting management
ANSI American National Standard Institute
AP Access Point
ARP Address Resolution Protocol
AS Autonomous System
ASBR Autonomous System Border Router
ASCII American Standard Code for Information Interchange
ASE Application service element
ASIC Application Specific Integrated Circuit
ASM Any-Source Multicast
ASN Auxiliary Signal Network
AT Advanced Technology
AT Adjacency Table
ATM Asynchronous Transfer Mode
AUX Auxiliary (port)
B Return
BC Bearer Control
BDR Backup Designated Router
BFD Bidirectional Forwarding Detection
A-1

Acronyms Full spelling
BGP Border Gateway Protocol
BIMS Branch Intelligent Management System
BOOTP Bootstrap Protocol
BPDU Bridge Protocol Data Unit
BRI Basic Rate Interface
BSR Bootstrap Router
BT BitTorrent
BT Burst Tolerance
C Return
CA Call Appearance
CA Certificate Authority
CAR Committed Access Rate
CBS Committed Burst Size
CBQ Class Based Queuing
CBR Constant Bit Rate
CBT Core-Based Tree
CCITT International Telephone and Telegraph Consultative
Committee
CE Customer Edge
CFD Connectivity Fault Detection
CFM Configuration File Management
CHAP Challenge Handshake Authentication Protocol
CIDR Classless Inter-Domain Routing
CIR Committed Information Rate
CIST Common and Internal Spanning Tree
CLNP Connectionless Network Protocol
CPOS Channelized POS
CPU Central Processing Unit
CQ Custom Queuing
CRC Cyclic Redundancy Check
CR-LSP Constraint-based Routing LSP
CR-LDP Constraint-based Routing LDP
CSMA/CD Carrier Sense Multiple Access/Collision Detect
CSNP Complete SNP
CSPF Constraint Shortest Path First
CST Common Spanning Tree
CT Call Transfer
A-2

Acronyms Full spelling
CV Connectivity Verification
D Return
DAR Deeper Application Recognition
DCE Data Circuit-terminal Equipment
DD Database Description
DDN Digital Data Network
DHCP Dynamic Host Configuration Protocol
DIS Designated IS
DLCI Data Link Connection Identifier
DLDP Device Link Detection Protocol
DNS Domain Name System
DoD Downstream on Demand
DoS Denial of Service
DR Designated Router
DSCP Differentiated Services Codepoint Priority
DSP Digital Signal Processor
DTE Data Terminal Equipment
DU Downstream Unsolicited
D-V Distance Vector Routing Algorithm
DVMRP Distance Vector Multicast Routing Protocol
DWDM Dense Wavelength Division Multiplexing
E Return
EACL Enhanced ACL
EAD Endpoint Admission Defense
EAP Extensible Authentication Protocol
EAPOL Extensible Authentication Protocol over LAN
EBGP External Border Gateway Protocol
EBS Excess Burst Size
EGP Exterior Gateway Protocol
ES End System
ES-IS End System-Intermediate System
F Return
FCoE Fabric Channel over Ethernet
FC Forwarding Class
FCS Frame Check Sequence
FDDI Fiber Distributed Data Interface
A-3

Acronyms Full spelling
FDI Forward Defect Indication
FEC Forwarding Equivalence Class
FFD Fast Failure Detection
FG Forwarding Group
FIB Forwarding information base
FIFO First In First Out
FQDN Full Qualified Domain Name
FR Frame Relay
FRR Fast ReRoute
FRTT Fairness Round Trip Time
FT Functional Test
FTP File Transfer Protocol
G Return
GARP Generic Attribute Registration Protocol
GE Gigabit Ethernet
GR Graceful Restart
GRE Generic Routing Encapsulation
GTS Generic Traffic Shaping
GVRP GARP VLAN Registration Protocol
H Return
HA High Availability
HABP HW Authentication Bypass Protocol
HDLC High-level Data Link Control
HEC Header Error Control
HoPE Hiberarchy of PE
HoVPN Hiberarchy of VPN
HQoS Hierarchical Quality of Service
HSB Hot Standby
HTTP Hyper Text Transport Protocol
H-VPLS Hiberarchy of VPLS
HVRP Hierarchy VLAN Register Protocol
HWTACACS HUAWEI Terminal Access Controller Access Control
System
I Return
IA Incoming Access
IANA Internet Assigned Number Authority
IBGP Internal BGP
A-4