R3166-R3206-HP High-End Firewalls Network Management Command Reference-6PW101

Table Of Contents
326
peer connect-interface (BGP/BGP-VPN instance view)
Syntax
peer { group-name | ip-address } connect-interface interface-type interface-number
undo peer { group-name | ip-address } connect-interface
View
BGP view, BGP-VPN instance view
Default level
2: System level
Parameters
group-name: Name of a peer group, a string 1 to 47 characters.
ip-address: IP address of a peer.
interface-type interface-number: Specifies the type and number of the interface.
Description
Use the peer connect-interface command to specify the source interface for establishing TCP connections
to a peer/peer group.
Use the undo peer connect-interface command to restore the default.
By default, BGP uses the outbound interface of the best route to the BGP peer/peer group as the source
interface for establishing a TCP connection to the peer/peer group.
Suppose interface A on the local device is connected to interface B on the peer device. When using the
peer x.x.x.x as-number as-number command on the local device but x.x.x.x is not the IP address of
interface B, execute the peer connect-interface command on the peer to specify the source interface—the
owner of IP address x.x.x.x—for establishing TCP connections.
To establish multiple BGP connections to another BGP router, specify on the local router the respective
source interfaces for establishing TCP connections to the peers on the peering BGP router; otherwise, the
local BGP router may fail to establish TCP connections to the peers when using the outbound interfaces
of the best routes as the source interfaces.
Examples
# In BGP view, specify loopback 0 as the source interface for routing updates to the peer group test.
<Sysname> system-view
[Sysname] bgp 100
[Sysname-bgp] peer test connect-interface loopback 0
# In BGP-VPN instance view, specify loopback 0 as the source interface for routing updates to the peer
group test (the VPN has been created).
<Sysname> system-view
[Sysname] bgp 100
[Sysname-bgp] ipv4-family vpn-instance vpn1
[Sysname-bgp-vpn1] peer test connect-interface loopback 0