H3C Technologies H3C S10500 Series Switches - Manual (Page 350)

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To do… Use the command… Remarks
Return to user view return
Soft-reset BGP connections
manually
refresh bgp ipv6 { all | ipv6-address | group
ipv6-group-name | external | internal } { export
| import }
Required
NOTE:
If the peer keep-all-routes command is used, all routes from the peer or peer group are saved regardless
of whether the filtering policy is available. These routes will be used to generate IPv6 BGP routes after
soft-reset is performed.
Enabling the IPv6 BGP ORF capability
The BGP Outbound Route Filter (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. The local BGP router determines whether to carry ORF information
in messages. If yes, it will further determine 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 6 .
Follow these steps to enable the BGP ORF capability:
To do… Use the command… Remarks
Enter system view system-view —
Enter BGP view bgp as-number Required
Enter IPv6 address family view ipv6-family —
Enable BGP route refresh for a
peer or peer group
peer { group-name |
ipv6-address } capability-advertise
route-refresh
Required
Enabled by default
Enable the non-standard ORF
capability for a BGP peer or peer
group
peer { group-name |
ipv6-address } capability-advertise
orf non-standard
Optional
By default, standard BGP ORF
capability defined in RFC 5291
and RFC 5292 is supported.
Enable the ORF IP prefix
negotiation capability for a BGP
peer or peer group
peer { group-name | ip-address |
ipv6-address } capability-advertise
orf ip-prefix { both | receive |
send }
Required
Not supported by default