peer additional-paths
Use peer additional-paths to configure the BGP additional path capabilities.
Use undo peer additional-paths to remove the configuration.
Syntax
In BGP IPv4 unicast address family view/BGP-VPN IPv4 unicast address family view:
peer { group-name | ipv4-address [ mask-length ] } additional-paths { receive | send } *
undo peer { group-name | ipv4-address [ mask-length ] } additional-paths { receive | send } *
In BGP IPv6 unicast address family view:
peer { group-name | ipv6-address [ prefix-length ] } additional-paths { receive | send } *
undo peer { group-name | ipv6-address [ prefix-length ] } additional-paths { receive | send } *
In BGP-VPN IPv6 unicast address family view:
peer { group-name | ipv6-address [ prefix-length ] } additional-paths { receive | send } *
undo peer { group-name | ipv6-address [ prefix-length ] } additional-paths { receive | send } *
Default
No BGP additional path capabilities are configured.
Views
BGP IPv4 unicast address family view
BGP-VPN IPv4 unicast address family view
BGP IPv6 unicast address family view
BGP-VPN IPv6 unicast address family view
Predefined user roles
network-admin
Parameters
group-name: Specifies a peer group by its name, a case-sensitive string of 1 to 47 characters. The peer group must have been created.
ipv4-address: Specifies a peer by its IPv4 address. The peer must have been created.
mask-length: Specifies a mask length in the range of 0 to 32. You can use the ipv4-address and mask-length arguments together to specify a subnet. If you specify a subnet, this command configures the BGP additional path capabilities for all dynamic peers in the subnet.
ipv6-address: Specifies a peer by its IPv6 address. The peer must have been created.
prefix-length: Specifies a prefix length in the range of 0 to 128. You can use the ipv6-address and prefix-length arguments together to specify a subnet. If you specify a subnet, this command configures the BGP additional path capabilities for all dynamic peers in the subnet.
receive: Enables the BGP additional path receiving capability.
send: Enables the BGP additional path sending capability.
Usage guidelines
You can enable the BGP additional path sending, receiving, or both sending and receiving capabilities on a BGP router. For two BGP peers to successfully negotiate the additional path capabilities, make sure one end has the sending capability and the other end has the receiving capability.
Examples
# In BGP IPv4 unicast address family view, enable the BGP additional path receiving capability.
<Sysname> system-view [Sysname] bgp 100 [Sysname-bgp-default] address-family ipv4 unicast [Sysname-bgp-default-ipv4] peer 1.1.1.1 additional-paths receive