Cisco ASR 9000 Series Routing Configuration Guide

DETAILED STEPS
PurposeCommand or Action
Verifies that received route refresh capability from the
neighbor is enabled.
show bgp neighbors
Example:
RP/0/RSP0/CPU0:router# show bgp neighbors
Step 1
Soft resets a BGP neighbor.clear bgp { ipv4 { unicast | multicast | all | tunnel } |
ipv6 unicast | all { unicast | multicast | all | tunnel } |
Step 2
•
The * keyword resets all BGP neighbors.
vpnv4 unicast | vrf { vrf-name | all } { ipv4 unicast |
ipv6 unicast } { * | ip-address | as as-number | external
•
The ip-address argument specifies the address of
the neighbor to be reset.
} clear bgp { ipv4 | ipv6} { unicast | labeled-unicast }
soft [ in [ prefix-filter ] | ]
•
The as-number argument specifies that all neighbors
that match the autonomous system number be reset.
Example:
RP/0/RSP0/CPU0:router# clear bgp ipv4 unicast
10.0.0.2 soft out
•
The external keyword specifies that all external
neighbors are reset.
Resetting Neighbors Using BGP Hard Reset
Perform this task to reset neighbors using a hard reset. A hard reset removes the TCP connection to the
neighbor, removes all routes received from the neighbor from the BGP table, and then re-establishes the
session with the neighbor. If the graceful keyword is specified, the routes from the neighbor are not removed
from the BGP table immediately, but are marked as stale. After the session is re-established, any stale route
that has not been received again from the neighbor is removed.
SUMMARY STEPS
1.
clear bgp { ipv4 { unicast | multicast | all | tunnel } | ipv6 unicast | all { unicast | multicast
| all | tunnel } | vpnv4 unicast | vrf { vrf-name | all } { ipv4 unicast | ipv6 unicast } | { * |
ip-address | as as-number | external } [ graceful ] soft [ in [ prefix-filter ] | out ] clear bgp { ipv4
| ipv6} { unicast | labeled-unicast }
DETAILED STEPS
PurposeCommand or Action
Clears a BGP neighbor.clear bgp { ipv4 { unicast | multicast | all | tunnel } |
ipv6 unicast | all { unicast | multicast | all | tunnel } |
Step 1
•
The * keyword resets all BGP neighbors.
vpnv4 unicast | vrf { vrf-name | all } { ipv4 unicast | ipv6
unicast } | { * | ip-address | as as-number | external } [
•
The ip-address argument specifies the address of the
neighbor to be reset.
graceful ] soft [ in [ prefix-filter ] | out ] clear bgp { ipv4
| ipv6} { unicast | labeled-unicast }
Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide, Release 5.3.x
154
Implementing BGP
Resetting Neighbors Using BGP Hard Reset

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