What is BGP soft reconfiguration inbound?
Soft reconfiguration uses stored update information, at the cost of additional memory for storing the updates, to allow you to apply new BGP policy without disrupting the network. Soft reconfiguration can be configured for inbound or outbound sessions. All BGP devices must support the route refresh capability.
What does soft reconfiguration inbound do?
The soft-reconfiguration inbound command tells R2 to save the routing information from R1 unmodified in the adj-RIB-in table. It will then apply the inbound BGP policy and store the information in the BGP table.
What does clear ip BGP soft do?
Soft reset—A soft reset uses stored prefix information to reconfigure and activate BGP routing tables without tearing down existing peering sessions. All BGP devices must support the route refresh capability. To determine if a BGP device supports this capability, use the show ip bgp neighbors command.
How do I reset my BGP session?
The most straightforward way to reset a BGP session is with the clear ip bgp command. clear ip bgp is the original version of the command. There’s also clear bgp ipv6 unicast for IPv6 BGP sessions and the corresponding clear bgp ipv4 unicast for IPv4 BGP sessions.
When to use soft reconfiguration in BGP 4?
Soft reconfiguration can be configured for inbound or outbound sessions. Dynamic inbound soft reset—The route refresh capability, as defined in RFC 2918, allows the local device to reset inbound routing tables dynamically by exchanging route refresh requests to supporting peers.
How to reset BGP peering sessions in Cisco IOS?
To access Cisco Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required. Whenever the routing policy changes due to a configuration change, BGP peering sessions must be reset by using the clear ip bgp command.
What does dynamic inbound soft reset do in BGP?
Dynamic inbound soft reset—The route refresh capability, as defined in RFC 2918, allows the local device to reset inbound routing tables dynamically by exchanging route refresh requests to supporting peers. The route refresh capability does not store update information locally for nondisruptive policy changes.
Is there support for BGP in 12.2sx?
Support in a specific 12.2SX release of this train depends on your feature set, platform, and platform hardware. Entering this command starts the storage of updates, which is required to do inbound soft reconfiguration. Outbound BGP soft reconfiguration does not require inbound soft reconfiguration to be enabled.