3com S7906E Guide De Référence

Page de 2327
 
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