R3166-R3206-HP High-End Firewalls Network Management Configuration Guide-6PW101

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To do… Use the command… Remarks
Enable BGP and enter BGP view bgp as-number
—
Not enabled by default
Specify a peer or a peer group and
its AS number
peer { group-name | ip-address }
as-number as-number
Required
Not specified by default
Enable the default use of IPv4
unicast address family for the peers
that are established using the peer
as-number command
default ipv4-unicast
Optional
Enabled by default
Enable a peer peer ip-address enable
Optional
Enabled by default
Configure a description for a
peer/peer group
peer { group-name | ip-address }
description description-text
Not configured by default.
NOTE:
• A router can reside in only one AS, so the router can run only one BGP process.
• You must create a peer group before configuring it.
Specifying the source interface for TCP connections
BGP uses TCP as the transport layer protocol. By default, BGP uses the output interface of the optimal
route to a peer or peer group as the source interface for establishing TCP connections to the peer or peer
group.
If a BGP router has multiple links to a peer, and the source interface fails, BGP has to reestablish TCP
connections, causing network oscillation. To enhance stability of BGP connections, HP recommends
using a loopback interface as the source interface.
Follow these steps to specify the source interface of TCP connections:
To do… Use the command…
Remarks
Enter system view system-view
—
Configure a global router ID router id router-id
Optional
Not configured by default.
If no global router ID is configured,
the highest loopback interface IP
address, if any, is used as the router
ID. If no loopback interface IP
address is available, the highest
physical interface IP address is used,
regardless of the interface status.
Enter BGP view bgp as-number
Required
By default, the system does not run
BGP.