Enabling BGP to establish an EBGP session over multiple hops
To establish an EBGP connection, two routers must have a direct physical link. If no direct link is available, you must use the peer ebgp-max-hop command to enable BGP to establish an EBGP session over multiple hops and specify the maximum hops.
If directly connected EBGP peers use loopback interfaces to establish a BGP session, you do not need to configure the peer ebgp-max-hop command.
To enable BGP to establish an indirect EBGP session (IPv4):
Step | Command | Remarks |
---|---|---|
1. Enter system view. | system-view | N/A |
2. Enter BGP view or BGP-VPN instance view. |
| N/A |
3. Enable BGP to establish an EBGP session to an indirectly-connected peer or peer group and specify the maximum hop count. | peer { group-name | ip-address } ebgp-max-hop [ hop-count ] | By default, BGP cannot establish an EBGP session to an indirectly-connected peer or peer group. |
To enable BGP to establish an indirect EBGP session (IPv6):
Step | Command | Remarks |
---|---|---|
1. Enter system view. | system-view | N/A |
2. Enter BGP view or BGP-VPN instance view. |
| N/A |
3. Enable BGP to establish an EBGP session to an indirectly-connected peer or peer group and specify the maximum hop count. | peer { group-name | ipv6-address } ebgp-max-hop [ hop-count ] | By default, BGP cannot establish an EBGP session to an indirectly-connected peer or peer group. |