How to Make a BGP Topology in Network

Step-by-Step Guide

1. 1

   Step 1: Consider your network is having Aggregation

   And the aim to configure BGP in devices and make a BGP topology out of this. ,,, Sample Configuration for configuring bgp in one device (125.62.173.139) with neighbors (125.62.174.253,
   125.62.174.254) having address-family ipv4 and vpnv4 router bgp 65112 bgp router-id
   125.62.173.139 no bgp default ipv4-unicast bgp log-neighbor-changes bgp graceful-restart restart-time 120 bgp graceful-restart stalepath-time 360 bgp graceful-restart neighbor IBGP_PEERS peer-group neighbor IBGP_PEERS remote-as 65112 neighbor IBGP_PEERS update-source Loopback0 neighbor MPBGP_PEERS peer-group neighbor MPBGP_PEERS remote-as 65112 neighbor MPBGP_PEERS update-source Loopback1 neighbor
   125.62.173.253 remote-as 65112 neighbor
   125.62.173.253 peer-group IBGP_PEERS neighbor
   125.62.173.254 remote-as 65112 neighbor
   125.62.173.254 peer-group IBGP_PEERS neighbor
   125.62.174.253 remote-as 65112 neighbor
   125.62.174.253 peer-group MPBGP_PEERS neighbor
   125.62.174.254 remote-as 65112 neighbor
   125.62.174.254 peer-group MPBGP_PEERS  ! address-family ipv4 neighbor IBGP_PEERS send-label neighbor
   125.62.173.253 activate neighbor
   125.62.173.254 activate no auto-summary no synchronization exit-address-family  ! address-family vpnv4 neighbor MPBGP_PEERS send-community extended neighbor
   125.62.174.253 activate neighbor
   125.62.174.254 activate exit-address-family  ! ,, blue
   ->RR Yellow
   -->NPE Gree
   -->AGG
2. 2

   Step 2: Access

3. 3

   Step 3: Network Processor engine

4. 4

   Step 4: and Route reflector Routers;

5. 5

   Step 5: Assume that All the L3 Layer connectivity is established between all these devices.

6. 6

   Step 6: Assume that you have 2 Route Reflector name RR1 and RR2 in your network.

7. 7

   Step 7: Assume that you have 22 Aggregation Routers (AG1 to AG22).

8. 8

   Step 8: Assume that you have 4 network processor engine (NPE1 to NPE4).

9. 9

   Step 9: In both of your Route Reflectors configure all your Aggregation

10. 10

    Step 10: Network Processor engine routers as your bgp neighbors.

11. 11

    Step 11: Now log in to each devices other than route reflectors (AGG

12. 12

    Step 12: NPE) and make bgp neighbor as the Route Reflector.

Detailed Guide

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