H3C Technologies H3C S7500E Series Switches - Manual (Page 415)

14-13
Perform a manual soft-reset
If the peer does not support route-refresh, you can use the peer keep-all-routes command to
save all the route updates from the peer, and then use the refresh bgp ipv6 multicast
command to soft-reset IPv6 MBGP connections to refresh the IPv6 MBGP routing table and
apply the new policy without tearing down IPv6 MBGP connections.
Follow these steps to perform a manual soft-reset
To do… Use the command… Remarks
Enter system view system-view —
Enter BGP view bgp as-number —
Enter IPv6 address family view ipv6-family —
Enter IPv6 MBGP address
family view
ipv6-family multicast —
Keep all routes from a peer/peer
group regardless of whether
they pass the inbound filtering
policy
peer { ipv6-group-name |
ipv6-address } keep-all-routes
Required
Not kept by default
Soft-reset IPv6 MBGP
connections manually
refresh bgp ipv6 multicast
{ all | ipv6-address | group
ipv6-group-name | external |
internal } { export | import }
Optional
Enabling the IPv6 MBGP ORF Capability
The BGP Outbound Route Filter (ORF) feature allows a BGP speaker to send to its BGP peer a
set of ORFs through Route-refresh messages. The peer then applies the ORFs, in addition to
its local routing policies (if any), to filter updates to the BGP speaker, thus reducing the number
of exchanged Update messages and saving network resources.
After you enable the BGP ORF capability, the local BGP router negotiates the ORF capability
with the BGP peer through Open messages (that is, determine whether to carry ORF
information in messages; if yes, whether to carry non-standard ORF information in the packets).
After completing the negotiation process and establishing the neighboring relationship, the BGP
router and its BGP peer can exchange ORF information through specific Route-refresh
messages.
For the parameters configured on both sides for ORF capability negotiation, refer to Table 8-1 .
Follow these steps to enable the IPv6 MBGP ORF capability:
To do… Use the command… Remarks
Enter system view system-view —
Enter BGP view bgp as-number Required