Shulou(Shulou.com)06/02 Report--

The topology diagram is as follows:

Purpose: interworking between RI and R3

First of all, of course, configure IP ~

R1:

R2:

R3:

OSPF declares:

R1:

R2:

R3:

R1:

Bgp 64512

The number of the confederation id 200 # BGP Alliance, which represents the Big AS

Peer 10.10.2.2 as-number 64512

Peer 10.10.2.2 connect-interface loopback 10

(declare local IP and lo 0 here with OSPF; declare lo 100 with BGP)

R2:

Bgp 64512

Confederation id 200

Confederation peer-as 64513

Peer 10.10.1.1 as-number 64512 # is an internal neighbor with R1, so use a small AS

Peer 10.10.1.1 connect-interface loopback 0

Peer 10.10.3.3 as-number 64513 # Special external neighbor within the Alliance, using Little AS

Peer 10.10.3.3 connect-interface loopback 0

Peer 10.10.3.3 ebgp-max-hop

(declare local IP and lo 0 with OSPF here)

Peer 192.168.24.4 as-number 400 # large AS is used to establish a neighbor with R4

R3:

Bgp 64513

Confederation id 200

Confederation peer-as 64512

Peer 10.10.2.2 as-number 64512

Peer 10.10.2.2 connect-interface loopback 10

Peer 10.10.2.2 ebgp-max-hop

(local IP and lo 0 are declared here with OSPF; lo 200 is declared with BGP)

Validate, test:

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.