Function
The peer ebgp-max-hop command configures BGP to set up the EBGP connection with the peer on an indirect network.
The undo peer ebgp-max-hop command cancels the existing configuration.
By default, the EBGP connection is set up only on the direct physical links.
Format
peer { group-name | ipv4-address | ipv6-address | ipv6-address } ebgp-max-hop [ hop-count ]
undo peer { group-name | ipv4-address | ipv6-address } ebgp-max-hop
Parameters
| Parameter | Description | Value |
|---|---|---|
| group-name | Specifies the name of the peer group. | The name is a string of 1 to 47 characters without any space. It is case-sensitive. |
| ipv4-address | Specifies the IPv4 address of the peer. | - |
| ipv6-address | Specifies the IPv6 address of the peer. | - |
| hop-count | Specifies the maximum number of hops. | The value is an integer ranging from 1 to 255. By default, the maximum number of hops in an EBGP connection is 1. If the specified maximum number of hops is 1, EBGP connection cannot be established between non-directly connected devices. If hop-count is not specified in the peer ebgp-max-hop command, 255 is used as the maximum number of hops in EBGP connections. |
NOTE: ipv4-address is valid only in the BGP view and BGP-VPN instance IPv4 address family view.
ipv6-address is valid only in the BGP view and BGP-VPN instance IPv6 address family view.
Views
BGP view, BGP-VPN instance IPv4 address family view, BGP-VPN instance IPv6 address family view
Usage Guidelines
Usage Scenario
A directly-connected physical link must be available between EBGP peers. Otherwise, the peer ebgp-max-hop command must be used to allow EBGP peers to establish a TCP connection over multiple hops.
If loopback interfaces are used to establish an EBGP peer relationship, the peer ebgp-max-hop command (hop-count ≥ 2) must be run; otherwise, the peer relationship cannot be established.
Prerequisites
The peer as-number command has been used to create a peer or peer group.
Precautions
If the peer ebgp-max-hop command is used on one end of an EBGP connection, it must also be used on the other end.