Avaya Configuring IP Exterior Gateway Protocols (BGP and EGP) Instrukcja Użytkownika Pobierz pdf (Strona 99)

Configuring BGP Peers

308628-15.0 Rev 00

4-17

Specifying the Next-Hop Router

A BGP update message has a path attribute called NEXT_HOP that specifies the

IP address of the router to use as the next hop for the advertised destinations. By

default, the NEXT_HOP attribute can specify the IP address of a router other than

this BGP router.

Configuring the peer to advertise a next hop other than itself can eliminate extra

forwarding hops. However, you can configure the router to always send the local

BGP peer’s IP address as the next hop in all advertisements.

Using the BCC

To specify whether the BGP peer router sends its own address as the next hop in

advertisements, go to a BGP peer prompt (for example,

box; ip; /jointfilesconvert/97454/bgp;

peer/2.2.2.2/2.2.2.3

) and enter:

next-hop-self

<state>

state

is either

enabled

disabled

(default).

For example, the following command causes BGP to send the local peer’s IP

address as the next hop in all advertisements:

peer/2.2.2.2/2.2.2.5#

next-hop-self enabled

peer/2.2.2.2/2.2.2.5#

Using Site Manager

To specify whether the BGP peer router sends its own address as the next hop in

advertisements, complete the following steps:

Site Manager Procedure

You do this System responds

1. In the Configuration Manager window,

choose

Protocols

The Protocols menu opens.

2. Choose

. The IP menu opens.

3. Choose

BGP

. The BGP menu opens.

4. Choose

Peers

. The IP Interface List for BGP window

opens.

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