R3303-HP HSR6800 Routers Layer 3 - IP Routing Configuration Guide

372
Ste
p
Command Remarks
7. Specify an AS path ACL to
filter routing information
imported from an IPv6 peer or
peer group.
peer { ipv6-group-name |
ipv6-address } as-path-acl
as-path-acl-number import
Not specified by default.
The IPv6 BGP-VPN instance view
does not support this command.
8. Specify an IPv6 prefix list to
filter routing information
imported from an IPv6 peer or
peer group.
peer { ipv6-group-name |
ipv6-address } ipv6-prefix
ipv6-prefix-name import
Not specified by default.
The IPv6 BGP-VPN instance view
does not support this command.
9. Specify the upper limit of
prefixes allowed to receive
from an IPv6 peer or peer
group.
peer { ipv6-group-name |
ipv6-address } route-limit limit
[ percentage ]
Optional.
Unlimited by default.
The IPv6 BGP-VPN instance view
does not support this command.
Configuring IPv6 BGP and IGP route synchronization
By default, upon receiving an IBGP route, an IPv6 BGP router checks the route’s next hop. If the next hop
is reachable, the IPv6 BGP router advertises the route to EBGP peers. If the synchronization feature is
configured, in addition to the reachability check of the next hop, the IPv6 BGP router must find an active
IGP route with the same destination network segment before it can advertise the IBGP route (use the
display ipv6 routing-table protocol command to check the IGP route state).
To configure IPv6 BGP and IGP route synchronization:
Step Command Remarks
1. Enter system view.
system-view
N/A
2. Enter BGP view.
bgp as-number N/A
3. Enter IPv6 address family view.
ipv6-family N/A
4. Enable route synchronization between
IPv6 BGP and IGP.
synchronization Not enabled by default.
Configuring route dampening
Ste
p
Command Remarks
1. Enter system view.
system-view
N/A
2. Enter BGP view.
bgp as-number N/A
3. Enter IPv6 address family
view.
ipv6-family N/A
4. Configure IPv6 BGP route
dampening parameters.
dampening [ half-life-reachable
half-life-unreachable reuse suppress ceiling |
route-policy route-policy-name ]*
Optional.
Not configured by
default.