Cisco ASR 9000 Series Routing Configuration Guide

PurposeCommand or Action
Specifies the autonomous system number and enters the
BGP configuration mode, allowing you to configure the
BGP routing process.
router bgp as-number
Example:
RP/0/RSP0/CPU0:router(config)# router bgp 120
Step 2
Allows the redistribution of iBGP routes into an IGP,
such as IS-IS or OSPF.
bgp redistribute-internal
Example:
RP/0/RSP0/CPU0:router(config-bgp)# bgp
redistribute-internal
Step 3
commit
Step 4
Configuring Discard Extra Paths
Perform this task to configure BGP maximum-prefix discard extra paths.
SUMMARY STEPS
1.
configure
2.
router bgp as-number
3.
neighbor ip-address
4.
address-family { ipv4 | ipv6 } unicast
5.
maximum-prefix maximum discard-extra-paths
6.
commit
DETAILED STEPS
PurposeCommand or Action
Enters Global Configuration mode.configure
Example:
RP/0/RSP0/CPU0:router# configure
Step 1
Specifies the autonomous system number and enters the BGP
configuration mode, allowing you to configure the BGP
routing process.
router bgp as-number
Example:
RP/0/RSP0/CPU0:router(config)# router bgp 10
Step 2
Places the router in neighbor configuration mode for BGP
routing and configures the neighbor IP address as a BGP
peer.
neighbor ip-address
Example:
RP/0/RSP0/CPU0:router(config-bgp)# neighbor
10.0.0.1
Step 3
Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide, Release 5.3.x
92
Implementing BGP
Configuring Discard Extra Paths

Cisco ASR 9000 Series Specifications

General

Brand	Cisco
Model	ASR 9000 Series
Category	Network Router
Language	English