Allowing Establishment Of Ebgp Session To An Indirectly Connected Peer Or Peer Group; Enabling The Bgp Orf Capability - HPE 5800 Series Configuration Manual

Allowing establishment of EBGP session to an indirectly
connected peer or peer group
Direct physical links must be available between EBGP peers. If not, use the peer ebgp-max-hop
command to establish an EBGP session over multiple hops between two peers.
To allow establishment of EBGP session to an indirectly connected peer or peer group:
Step
Enter system view.
1.
Enter BGP view or
2.
BGP-VPN instance view.
Allow the establishment of
3.
EBGP session to an
indirectly connected peer or
peer group, and specify the
maximum hop count.

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
To enable the BGP ORF capability:
Step
Enter system view.
1.
Enter BGP view or
2.
BGP-VPN instance view.
Enable BGP route refresh for
3.
a peer or peer group.
Command
system-view
•
Enter BGP view:
bgp as-number
•
Enter BGP-VPN instance
view:
a. bgp as-number
b. ipv4-family
vpn-instance
vpn-instance-name
peer { group-name | ip-address }
ebgp-max-hop [ hop-count ]
Command
system-view
•
Enter BGP view:
bgp as-number
•
Enter BGP-VPN instance
view:
a. bgp as-number
b. ipv4-family
vpn-instance
vpn-instance-name
peer { group-name | ip-address }
capability-advertise
route-refresh
205
Remarks
N/A
Use either approach.
By default, the EBGP session to
an indirectly connected peer or
peer group is not allowed to be
established.
Table 8.
Remarks
N/A
Use either approach.
Enabled by default.