3com S7906E Guide De Référence
1-38
peer preferred-value (IPv6 MBGP address family view)
Syntax
peer { ipv6-group-name | ipv6-address } preferred-value value
undo peer { ipv6-group-name | ipv6-address } preferred-value
View
IPv6 MBGP address family view
Default Level
2: System level
Parameters
ipv6-group-name: Name of an IPv6 MBGP peer group, a string of 1 to 47 characters.
ipv6-address: IPv6 address of an IPv6 MBGP peer.
value: Preferred value, in the range 0 to 65535.
Description
Use the peer preferred-value command to assign a preferred value to routes received from an IPv6
MBGP peer or peer group.
Use the undo peer preferred-value command to restore the default.
The preferred value defaults to 0.
Routes learned from peers each have a preferred value. Among multiple routes to the same destination,
the route with the greatest preferred value is selected.
Note the following:
If you both reference a route policy and use the peer { ipv6-group-name | ipv6-address }
preferred-value value command to set a preferred value for routes from a peer, the route policy sets a
specified non-zero preferred value for routes matching it. Other routes not matching the route policy
uses the value set with the peer preferred-value command. If the preferred value specified in the route
policy is zero, the routes matching it will also use the value set with the command. For information about
using a route policy to set a preferred value, refer to the command peer { group-name | ipv6-address }
route-policy route-policy-name { import | export } in this document, and the command apply
preferred-value preferred-value in Route Policy Commands of the IP Routing Volume.
Examples
# Configure a preferred value of 50 for routes from IPv6 MBGP peer 1:2::3:4.
<Sysname> system-view
[Sysname] bgp 100
[Sysname-bgp] ipv6-family
[Sysname-bgp-af-ipv6] peer 1:2::3:4 as-number 100
[Sysname-bgp-af-ipv6] quit
[Sysname-bgp] ipv6-family multicast
[Sysname-bgp-af-ipv6-mul] peer 1:2::3:4 enable
[Sysname-bgp-af-ipv6-mul] peer 1:2::3:4 preferred-value 50