350-501 · Question #483
Refer to the exhibit. IS-IS is running as the IGP in the network, and the routers have established BGP peering relationships. Because the network carries mission-critical data, the routers must be…
The correct answer is B. Enable NSF globally on all BGP peers. Graceful Restart (GR) with Non-Stop Forwarding (NSF) ensures that during a router failover or software upgrade, BGP peers retain their routing table and continue forwarding traffic based on preexisting routes. By enabling NSF globally on all BGP peers, the routers can maintain…
Question
Refer to the exhibit. IS-IS is running as the IGP in the network, and the routers have established BGP peering relationships. Because the network carries mission-critical data, the routers must be able to operate with minimal downtime. The networking team decided to implement graceful restart to improve network stability. Which action must the team take so that all BGP peers can use their BGP routes during a failover?
Exhibit
Options
- ADeploy BGP with traffic steering to provide automated paths during a failover.
- BEnable NSF globally on all BGP peers.
- CMutually redistribute IS-IS and BGP.
- DImplement MPLS within the network with Cisco Express Forwarding enabled.
How the community answered
(27 responses)- A4% (1)
- B93% (25)
- D4% (1)
Explanation
Graceful Restart (GR) with Non-Stop Forwarding (NSF) ensures that during a router failover or software upgrade, BGP peers retain their routing table and continue forwarding traffic based on preexisting routes. By enabling NSF globally on all BGP peers, the routers can maintain their BGP routes during a failover, reducing downtime and ensuring the stability of mission-critical data traffic. This approach minimizes the impact of control plane disruptions on the data plane.
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