Configuring Basic Bgp; Enabling Bgp - HP 6125XLG Configuration Manual

Tasks at a glance
(Optional.)
(Optional.)

Configuring basic BGP

This section describes the basic settings required for a BGP network to run.

Enabling BGP

A router ID is the unique identifier of a BGP router in an AS.
To ensure the uniqueness of a router ID and enhance availability, specify in BGP view the IP address
•
of a local loopback interface as the router ID.
• If no router ID is specified in BGP view, the global router ID is used.
To modify a router ID, use the router-id command in BGP view, rather than the router id command
•
in system view.
If you specify a router ID in BGP view and then remove the interface that owns the router ID, the
•
router does not select a new router ID. To select a new router ID, use the undo router-id command
in BGP view.
To enable BGP:
Step
1. Enter system view.
2. Configure a global router ID.
3. Enable BGP and enter BGP
view or BGP-VPN instance
view.
4. Specify a router ID.
Enabling logging of session state changes
Configuring BFD for BGP
Command
system-view
router id router-id
•
Enable BGP and enter BGP
view:
bgp as-number
•
Enable BGP and enter
BGP-VPN instance view:
a. bgp as-number
b. ip vpn-instance
vpn-instance-name
router-id router-id
172
Remarks
N/A
N/A
Remarks
N/A
By default, no global router ID is
configured, and BGP uses the
highest loopback interface IP
address—if any—as the router ID. If
no loopback interface IP address is
available, BGP uses the highest
physical interface IP address as the
route ID regardless of the interface
status.
By default, BGP is not enabled.
A router can reside in only one AS,
so the router can run only one BGP
process.
To enter BGP-VPN instance view, the
specified VPN instance must already
exist and have the route distinguisher
(RD) configured. For more
information about VPN, see MCE
Configuration Guide.
By default, the global router ID is
used.