OS10 Enterprise Edition User Guide Release 10.4.1.0

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Configuring BGP in a non-default VRF instance

To configure BGP in a non-default VRF instance.

  1. Assign an AS number, and enter ROUTER-BGP mode from CONFIGURATION mode (1 to 65535 for 2-byte, 1 to 4294967295 for 4-byte). Only one AS number is supported per system. If you enter a 4-byte AS number, 4-byte AS support is enabled automatically.
    router bgp 
                                           as-number
                                        
  2. Enter ROUTER-BGP-VRF mode to configure BGP in a non-default VRF instance.
    vrf 
                                           vrf-name
                                        
  3. Enter a neighbor in CONFIG-ROUTER-VRF mode.
    neighbor 
                                           ip-address
                                        
  4. Add a remote AS in ROUTER-NEIGHBOR mode, from 1 to 65535 for 2-byte or 1 to 4294967295 for 4-byte.
    remote-as 
                                           as-number
                                        
  5. Enable the BGP neighbor in ROUTER-NEIGHBOR mode.
    no shutdown
  6. (Optional) Add a description text for the neighbor in ROUTER-NEIGHBOR mode.
    description 
                                           text
                                        

To reset the configuration when you change the configuration of a BGP neighbor, use the clear ip bgp * command. To view the BGP status, use the show ip bgp summary command.

Configure BGP

OS10# configure terminal
                                 OS10(config)# router bgp 100
                                 OS10(config-router-bgp-100)# vrf blue
                                 OS10(config-router-vrf)# neighbor 5.1.1.1
                                 OS10(config-router-neighbor)# remote-as 1
                                 OS10(config-router-neighbor)# description  n1_abcd
                                 OS10(config-router-neighbor)# exit
                                 OS10(config-router-vrf)# template t1
                                 OS10(config-router-template)# description peer_template_1_abcd
                              

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