To do...
7.
Specify an AS path ACL to
filter IPv6 BGP routing
information from a peer/peer
group.
8.
Specify an IPv6 prefix list to
filter routes from a peer/peer
group.
9.
Specify the upper limit of
prefixes that can be imported
from a peer/peer group.
A peer can has an inbound route filtering policy that is different from that of the peer group that it belongs
to. That is, peer group members can have different inbound route filtering policies.
Configuring IPv6 MBGP route dampening
To do...
1.
Enter system view.
2.
Enter BGP view.
3.
Enter IPv6 MBGP address
family view.
4.
Configure IPv6 MBGP route
dampening parameters.
Configuring IPv6 MBGP route attributes
This section describes how to use IPv6 MBGP route attributes to affect IPv6 MBGP route selection. IPv6
MBGP route attributes involve:
•
IPv6 MBGP protocol preference
•
Default LOCAL_PREF attribute
•
MED attribute
•
NEXT_HOP attribute
•
AS_PATH attribute
Prerequisites
Before you configure IPv6 MBGP route attributes, complete the following tasks:
•
Enable IPv6
•
Configure the IPv6 MBGP basic functions
Use the command...
peer { ipv6-group-name |
ipv6-address } as-path-acl
as-path-acl-number import
peer { ipv6-group-name |
ipv6-address } ipv6-prefix
ipv6-prefix-name import
peer { ipv6-group-name |
ipv6-address } route-limit limit
[ percentage ]
Use the command...
system-view
bgp as-number
ipv6-family multicast
dampening [ half-life-reachable
half-life-unreachable reuse
suppress ceiling | route-policy
route-policy-name ]*
374
Remarks
•
filter-policy import
•
peer filter-policy import
•
peer as-path-acl import
•
peer ip-prefix import
•
peer route-policy import
A filter policy can be applied only
after the previous one is passed;
routing information can be
received only after passing all the
filter policies configured.
Optional.
The number is unlimited by
default.
Remarks
—
—
—
Optional.
Not configured by default.