Cabletron Systems SMARTSWITCH ROUTER 9032578-05 Manual de usuario descargar pdf (Pagina 155)

SmartSwitch Router User Reference Manual 129

Chapter 12: BGP Configuration Guide

Adding and Removing a BGP Peer

There are two ways to add BGP peers to peer groups. You can explicitly add a peer host,

or you can add a network. Adding a network allows for peer connections from any

addresses in the range of network and mask pairs specified in the /jointfilesconvert/93011/bgp add network

command.

To add BGP peers to BGP peer groups, enter one of the following commands in Configure

mode.

You may also remove a BGP peer from a peer group. To do so , enter the following

command in Configure mode:

Starting BGP

BGP is disabled by default. To start BGP, enter the following command in Configure

mode.

Using AS-Path Regular Expressions

An AS-path regular expression is a regular expression where the alphabet is the set of AS

numbers. An AS-path regular expression is composed of one or more AS-path

expressions. An AS-path expression is composed of AS path terms and AS-path operators.

An AS path term is one of the following three objects:

autonomous_system

Is any valid autonomous system number, from one through 65534 inclusive.

. (dot)

Matches any autonomous system number.

Add a host to a BGP peer

group.

/jointfilesconvert/93011/bgp add peer-host <ipaddr> group <number-or-string>

Add a network to a BGP peer

group.

/jointfilesconvert/93011/bgp add network <ip-addr-mask>|all group <number-

or-string>

Remove a host from a BGP peer

group.

/jointfilesconvert/93011/bgp clear peer-host <ipaddr>

Start BGP. /jointfilesconvert/93011/bgp start

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Cabletron Systems SMARTSWITCH ROUTER 9032578-05 Manual de usuario Pagina 155