HP VPN Firewall Appliances Network Management Configuration Guide

498
Ste
p
Command Remarks
2. Enter BGP view or BGP-VPN
instance view.
• Enter BGP view:
bgp as-number
• Enter BGP-VPN instance view:
a. bgp as-number
b. ipv4-family vpn-instance
vpn-instance-name
Use either method.
3. Allow the establishment of
EBGP session to an indirectly
connected peer or peer
group, and specify the
maximum hop count.
peer { group-name | ip-address }
ebgp-max-hop [ hop-count ]
By default, the EBGP session to an
indirectly connected peer or peer
group is not allowed to be
established.
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 BGP session, 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 54.
T
o enable the
BGP ORF capability:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter BGP view or BGP-VPN
instance view.
• Enter BGP view:
bgp as-number
• Enter BGP-VPN instance view:
a. bgp as-number
b. ipv4-family vpn-instance
vpn-instance-name
Use either method.
3. Enable BGP route refresh for a
peer or 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 or
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 or peer group.
peer { group-name | ip-address }
capability-advertise orf ip-prefix
{ both | receive | send }
Disabled by default.