H3C Technologies H3C S10500 Series Switches - Manual (Page 450)

435
Configuring a preferred value for routes from a peer or a peer
group
Follow these steps to configure a preferred value for routes from a peer or a peer group:
To do… Use the command… Remarks
Enter system view system-view —
Enter BGP view bgp as-number —
Enter IPv6 MBGP address family
view
ipv6-family multicast —
Specify a preferred value for routes
received from the IPv6 MBGP peer
or the peer group
peer { ipv6-group-name |
ipv6-address } preferred-value
value
Optional
The preferred value defaults to 0.
CAUTION:
If you both reference a routing policy and use the command peer { ipv6-group-name | ipv6-address }
preferred-value value to set a preferred value for routes from a peer or a peer group, the routing policy
sets the specified preferred value for the routes that match it. Other routes that do not match the routing
policy use the value set through the command. If the preferred value in the routing policy is 0, the routes
that match it will also use the value set through the peer {
ipv6-group-name | ipv6-address }
preferred-value value command. To learn how to use a routing policy to set a preferred value, see the
peer { ipv6-group-name | ipv6-address } route-policy route-policy-name { import | export } command
and the apply preferred-value preferred-value command. For more information about these commands,
see Layer 3—IP Routing Command Reference.
Controlling route distribution and reception
Configuration prerequisites
Before you configure this task, complete the following tasks:
• Enable IPv6
• Configure the IPv6 MBGP basic functions
Injecting a local IPv6 MBGP route
Follow these steps to inject a local IPv6 MBGP route:
To do… Use the command… Remarks
Enter system view system-view —
Enter BGP view bgp as-number —
Enter IPv6 MBGP address family
view
ipv6-family multicast —
Inject a network into the IPv6
MBGP routing table network ipv6-address prefix-length
[ route-policy route-policy-name | short-cut ] Required
Not injected by default.