Enabling the bgp orf capability – H3C Technologies H3C SR8800 User Manual
Page 244
228
Step Command
Remarks
5.
Return to user view.
return
N/A
6.
Perform manual soft reset on BGP
connections.
refresh bgp { all | ip-address |
group group-name | external |
internal } { export | import }
N/A
NOTE:
If the BGP peer does not support route-refresh and the peer keep-all-routes command is not configured
for it, you must decide whether to manually disconnect the peer to learn routes again according to the
impact of the new policy.
Enabling the BGP ORF capability
The BGP Outbound Route Filtering (ORF) feature allows a BGP speaker to send 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, 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 (determines whether to carry ORF information in messages, and 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, see
.
To enable the BGP ORF capability:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter BGP view.
bgp as-number
N/A
3.
Enable BGP route refresh for a
peer/peer group.
peer { group-name | ip-address }
capability-advertise route-refresh
Enabled by default.
4.
Enable the non-standard ORF
capability for a BGP
peer/peer group.
peer { group-name | ip-address }
capability-advertise orf
non-standard
Optional.
By default, standard BGP ORF
capability defined in RFC 5291
and RFC 5292 is supported.
If the peer supports only
non-standard ORF, you need to
configure this command.
5.
Enable the ORF capability for
a BGP peer/peer group.
peer { group-name | ip-address }
capability-advertise orf ip-prefix
{ both | receive | send }
Disabled by default.