Cisco ASR 9000 Series Routing Configuration Guide

PurposeCommand or Action
commit
Step 4
Re-enable BGP Nonstop Routing
If BGP Nonstop Routing (NSR) is disabled, use the following steps to turn BGP NSR back on using the
following steps:
SUMMARY STEPS
1.
configure
2.
router bgp as-number
3.
no nsr disable
4.
commit
DETAILED STEPS
PurposeCommand or Action
configure
Step 1
Specifies the BGP AS number, and enters the BGP
configuration mode, for configuring BGP routing
processes.
router bgp as-number
Example:
RP/0/RSP0/CPU0:router(config)# router bgp 120
Step 2
Enables BGP Nonstop routing.no nsr disable
Example:
RP/0/RSP0/CPU0:router(config-bgp)# nsr disable
Step 3
commit
Step 4
Installing Primary Backup Path for Prefix Independent Convergence (PIC)
Perform the following tasks to install a backup path into the forwarding table and provide prefix independent
convergence (PIC) in case of a PE-CE link failure:
Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide, Release 5.3.x
161
Implementing BGP
Re-enable BGP Nonstop Routing

Cisco ASR 9000 Series Specifications

General

Series	ASR 9000
Category	Network Router
Modular Design	Yes
Redundancy	Yes (Hardware and Software)
Operating System	Cisco IOS XR
Interfaces/Ports	10G, 40G, 100G, 400G Ethernet
Expansion Slots	Varies by model
Routing Protocol	BGP, OSPF, IS-IS, EIGRP
Management	CLI, SNMP, NETCONF
Power Supply	Redundant
Port Density	Varies by model
Power Supply Options	AC, DC
Memory	Varies by model
Storage	Varies by model
Dimensions	Varies by model
Weight	Varies by model