R3721-F3210-F3171-HP High-End Firewalls Network Management Configuration Guide-6PW101

447
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 71.
T
o en
able the BGP ORF capability:
Ste
p
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.
Table 71 Description of the both, send, and receive parameters and the negotiation result
Local
p
arameter Peer
p
arameter Ne
g
otiation result
send
receive
The ORF sending capability is enabled locally and
the ORF receiving capability is enabled on the peer.
both
receive
send
The ORF receiving capability is enabled locally and
the ORF sending capability is enabled on the peer.
both
both both
Both the ORF sending and receiving capabilities are
enabled locally and on the peer, respectively.
Enabling 4-byte AS number suppression
The device supports 4-byte AS numbers and uses 4-byte AS numbers by default. If the peer devices
support only 2-byte AS numbers, you must enable the 4-byte AS number suppression function on the
device.
To enable 4-byte AS number suppression:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter BGP view. bgp as-number N/A