Enabling Bgp - HP HPE FlexNetwork 7500 series Configuration Manual

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 instance view
the IP address of a local loopback interface as the router ID. Different BGP instances can have
the same router ID.
•
If no router ID is specified in BGP instance view, the global router ID is used.
•
To modify a non-zero router ID of a BGP instance , use the router-id command in BGP instance
view, rather than the router id command in system view.
•
If you specify a router ID in BGP instance 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 instance view.
To enable BGP:
Step
1. Enter system view.
2. Configure a global router ID.
3. Enable BGP and enter BGP
instance view.
4. (Optional.) Configure an
SNMP context for the BGP
instance.
5. (Optional.) Configure a
router ID for the BGP
instance.
6. (Optional.) Enter BGP-VPN
instance view.
7. (Optional.) Configure a
router ID for the BGP VPN
instance.
Command
system-view
router id router-id
bgp as-number [ instance
instance-name ]
snmp context-name
context-name
router-id router-id
ip vpn-instance
vpn-instance-name
router-id { router-id |
auto-select }
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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 disabled and no
BGP instances exist.
By default, no SNMP context is
configured for a BGP instance.
By default, no router ID is
configured for a BGP instance, and
the BGP instance uses the global
router ID configured by the
router-id command in system view.
The specified VPN instance must
have been created and have an RD.
For more information about VPN
instances, see MPLS Configuration
Guide.
By default, no router ID is
configured for a BGP VPN instance,
and the BGP VPN instance uses
the router ID configured in BGP
instance view. If no router ID is
configured in BGP instance view,
the BGP VPN instance uses the
global router ID configured in
system view.