peer default-route-advertise
Use peer default-route-advertise to advertise a default route to a peer or peer group.
Use undo peer default-route-advertise to disable default route advertisement to a peer or peer group.
Syntax
In BGP IPv4 unicast address family view/BGP-VPN IPv4 unicast address family view/BGP IPv4 multicast address family view:
peer { group-name | ipv4-address [ mask-length ] } default-route-advertise [ route-policy route-policy-name ]
undo peer { group-name | ipv4-address [ mask-length ] } default-route-advertise
In BGP IPv6 unicast address family view:
peer { group-name | ipv6-address [ prefix-length ] } default-route-advertise [ route-policy route-policy-name ]
undo peer { group-name | ipv6-address [ prefix-length ] } default-route-advertise
In BGP-VPN IPv6 unicast address family view/BGP IPv6 multicast address family view:
peer { group-name | ipv6-address [ prefix-length ] } default-route-advertise [ route-policy route-policy-name ]
undo peer { group-name | ipv6-address [ prefix-length ] } default-route-advertise [ route-policy route-policy-name ]
Default
No default route is advertised to any peers or peer groups.
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
BGP IPv4 multicast address family view
BGP IPv6 multicast 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 advertises a default route to 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 advertises a default route to all dynamic peers in the subnet.
route-policy route-policy-name: Specifies a routing policy by its name, a case-sensitive string of 1 to 63 characters, to modify the route attribute.
vpn-instance vpn-instance-name: Specifies an MPLS L3VPN instance by its name, a case-sensitive string of 1 to 31 characters.
Usage guidelines
This command enables the router to send a default route with the next hop being itself to the peer or peer group regardless of whether the default route exists in the routing table.
Examples
# In BGP IPv4 unicast address family view, advertise a default route to peer group test.
<Sysname> system-view [Sysname] bgp 100 [Sysname-bgp-default] address-family ipv4 unicast [Sysname-bgp-default-ipv4] peer test default-route-advertise