HP 6125G - Peer Connect-Interface (BGP;BGP-VPN Instance View)

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The device supports 4-byte AS numbers and uses 4-byte AS numbers by default. If the peer devices
support only 2-byte AS numbers, you must enable the 4-byte AS number suppression function on the
device.
If the peer device supports 4-byte AS numbers, do not enable the suppression function; otherwise, the
BGP peer relationship cannot be established.
Examples
# In BGP view, enable 4-byte AS number suppression for peer 160.89.2.33.
<Sysname> system-view
[Sysname] bgp 100
[Sysname-bgp] peer 160.89.2.33 as-number 100
[Sysname-bgp] peer 160.89.2.33 capability-advertise suppress-4-byte-as
# In BGP-VPN instance view, enable 4 -byte AS number suppression for peer 160.89.2.33. (The VPN must
have been created.)
<Sysname> system-view
[Sysname] bgp 100
[Sysname-bgp] ipv4-family vpn-instance vpn1
[Sysname-bgp-ipv4-vpn1] peer 160.89.2.33 as-number 200
[Sysname-bgp-ipv4-vpn1] peer 160.89.2.33 capability-advertise suppress-4-byte-as
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 an interface by its type and number.
Description
Use peer connect-interface to specify the source interface for establishing TCP connections to a
peer/peer group.
Use undo peer connect-interface 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
, you need to 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.