Bgp Nonstop Routing; Configure Bgp Nonstop Routing; Disable Bgp Nonstop Routing - Cisco NCS 5500 Series Configuration Manual

BGP Nonstop Routing

Example:
RP/0/RP0/CPU0:router(config-bgp)# neighbor 172.168.40.24
Places the router in neighbor configuration mode for BGP routing and configures the neighbor IP address as a BGP peer.
Step 4 remote-as as-number
Example:
RP/0/RP0/CPU0:router(config-bgp-nbr)# remote-as 2002
Creates a neighbor and assigns a remote autonomous system number to it.
Step 5 keychain name
Example:
RP/0/RP0/CPU0:router(config-bgp-nbr)# keychain kych_a
Configures keychain-based authentication.
Step 6 commit
BGP Nonstop Routing
The Border Gateway Protocol (BGP) Nonstop Routing (NSR) with Stateful Switchover (SSO) feature enables
all bgp peerings to maintain the BGP state and ensure continuous packet forwarding during events that could
interrupt service. Under NSR, events that might potentially interrupt service are not visible to peer routers.
Protocol sessions are not interrupted and routing states are maintained across process restarts and switchovers.
BGP Nonstop Routing Reference, on page 136

Configure BGP Nonstop Routing

BGP Nonstop Routing (BGP NSR) is enabled by default. The no nsr disable command can also be used to
turn BGP NSR back on if it has been disabled.

Disable BGP Nonstop Routing

Perform this task to disable BGP Nonstop Routing (NSR):
SUMMARY STEPS
1. configure
2. router bgp as-number
3. nsr disable
4. commit
BGP Configuration Guide for Cisco NCS 5500 Series Routers, IOS XR Release 6.2.x
66
for additional details.
Implementing BGP