H3C Technologies H3C S7500E Series Switches - Manual (Page 346)

11-17
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, see Table 6-2 .
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/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/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/peer group
peer { group-name | ip-address |
ipv6-address }
capability-advertise orf ip-prefix
{ both | receive | send }
Required
Not supported by default
Table 11-1 Description of the both, send, and receive parameters and the negotiation result
Local parameter Peer parameter Negotiation result
receive
send
both
The ORF sending capability is enabled locally and
the ORF receiving capability is enabled on the
peer.
send
receive
both
The ORF receiving capability is enabled locally and
the ORF sending capability is enabled on the peer.
both both
Both the ORF sending and receiving capabilities
are enabled locally and on the peer, respectively.
Configuring the Maximum Number of Load-Balanced Routes
Follow these steps to configure the maximum number of load balanced routes: