Enabling Bgp - HP ProCurve Secure Router 7203 dl Advanced Management And Configuration Manual

IP Routing—Configuring RIP, OSPF, BGP, and PBR
Configuring BGP
Parameter
the routers that send and
receive updates
information in updates
metric computation and
route selection
when routers send and
receive updates
13-70
Table 13-10. BGP Protocol
BGP Specification
BGP routers communicate only with
manually configured neighbors.
• new route
• withdrawn routes
• filters screen which routes the router
advertises to a neighbor
• routes can include various attributes
such as:
– community
– autonomous systems through which
packets must pass
– metric for multi-exit discriminator
variety of policies:
• number of hops
• autonomous systems through which the
route passes
• weight
• inbound filters
• only to update routes
• can send keepalive messages

Enabling BGP

To enable BGP, enter the following command from the global configuration
mode context. You must also set the local AS number:
Syntax: router bgp <AS number>
For example, your ISP has assigned your organization AS 1:
ProCurve(config)# router bgp 1
You then enter the BGP configuration mode context:
ProCurve(config-bgp)#
Configuration Considerations
• configuring the router ID (page 13-72)
• configuring a neighbor (page 13-72)
• setting the remote AS (page 13-73)
• advertising a network (page 13-71)
• setting the local AS (page 13-70 and page
13-73)
optional:
• configuring outbound prefix lists (page
13-78)
• configuring more complex policies for
which routes are advertised to a
neighbor (page 13-89)
• placing a route in a community (page
13-94)
• adding an AS path to a route (page 13-96)
• setting a multi-exit discriminator (page
13-98)
optional:
• configuring inbound prefix lists (page
13-78)
• setting local preferences according to
AS path or other attributes page 13-102
• setting administrative distance for BGP
routes (page 13-105)
optional:
• altering BGP intervals (page 13-106)