H3C Technologies H3C SecPath F1000-E - Manual (Page 490)

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If a BGP peer does not support route-refresh, you need to save updates from the peer on the local
router by using the peer keep-all-routes command, and use the refresh bgp command to refresh
the BGP routing table.
To save all route updates from a peer/peer group:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter BGP view. bgp as-number N/A
3. Disable BGP route-refresh and
multi-protocol extension
capability for a peer/peer
group.
peer { group-name | ip-address }
capability-advertise conventional
Enabled by default.
4. Save all routes from a peer/peer
group. peer { group-name | ip-address }
keep-all-routes
Not saved by default.
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 need to 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
Table 70 .
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.