3com 3031 Instruccion De Instalación

C

HAPTER

 42: BGP C

ONFIGURATION

[Router B-Serial1/0/0]ip address 193.1.1.2 255.255.255.0

[Router B-Serial1/0/0]quit

[Router B]bgp 200

[Router B-bgp]group ex external

[Router B-bgp]peer 192.1.1.1 group ex as-number 100

[Router B-bgp]group in internal

[Router B-bgp]peer 193.1.1.1 group in

3 Configure Router C:

[Router C]interface serial 2/0/0

[Router C-Serial2/0/0]ip address 193.1.1.1 255.255.255.0

[Router C-Serial2/0/0]interface serial 1/0/0

[Router C-Serial1/0/0]ip address 194.1.1.1 255.255.255.0

[Router C-Serial1/0/0]quit

[Router C]bgp 200

[Router C-bgp]group rr internal

[Router C-bgp]peer rr reflect-client

[Router C-bgp]peer 193.1.1.2 group rr

[Router C-bgp]peer 194.1.1.2 group rr

4 Configure Router D:

[Router D]interface serial 1/0/0

[Router D-Serial1/0/0]ip address 194.1.1.2 255.255.255.0

[Router D-Serial1/0/0]quit

[Router D]bgp 200

[Router D-bgp]group in internal

[RouterD-bgp]peer 194.1.1.1 group in

Using 

 command on Router B, you can view Router 

B has known the existence of network 1.0.0.0.

Using 

 command on Router D, you can view Router 

D also knows the existence of network 1.0.0.0.

This example illustrates how the administrator manages the routing via BGP 
attributes.

All routers are configured with BGP, and IGP in AS200 adopts OSPF.

Router A is in AS100, Router B, Router C and Router D are in AS200. EBGP is 
enabled on Router A, Router B and Router C. IBGP is enabled on Router B, Router 
C and Router D.