3com MSR 20-20 참조 매뉴얼

peer { group-name | ip-address } connect-interface interface-type interface-number

undo peer { group-name | ip-address } connect-interface

BGP view/BGP-VPN instance view

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.

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.

Note that:

To establish multiple BGP connections to another BGP router, you need to specify 
on the local router the respective source interfaces for establishing TCP 
connections to the peers on the peering BGP router because 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.

# 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 

peer { group-name | ip-address } default-route-advertise [ route-policy 
route-policy-name ]

undo peer { group-name | ip-address } default-route-advertise