350-501 · Question #419
An engineer working for a telecommunication company with an employee ID: 1234:56:789 must configure an OSPF router in a multivendor network so that it performs NSF in the event of a route processor…
The correct answer is D. router ospf 1. To configure an OSPF router for Non-Stop Forwarding (NSF) in a multivendor network during a route processor switchover, the nsf ietf command should be applied within the OSPF routing process.
Question
An engineer working for a telecommunication company with an employee ID: 1234:56:789 must configure an OSPF router in a multivendor network so that it performs NSF in the event of a route processor switchover. Which configuration must the engineer apply?
Options
- Arouter ospf 1
- Brouter ospf 1
- Crouter ospf 1
- Drouter ospf 1
How the community answered
(37 responses)- A3% (1)
- B11% (4)
- C5% (2)
- D81% (30)
Why each option
To configure an OSPF router for Non-Stop Forwarding (NSF) in a multivendor network during a route processor switchover, the `nsf ietf` command should be applied within the OSPF routing process.
This choice is incomplete and does not specify a valid OSPF NSF configuration command.
This choice is incomplete and does not specify a valid OSPF NSF configuration command.
This choice is incomplete and does not specify a valid OSPF NSF configuration command.
The `nsf ietf` command enables the OSPF router to continue forwarding data packets during a route processor switchover by retaining routing information and re-establishing adjacencies without traffic disruption, which is crucial for high availability and multivendor interoperability due to its adherence to IETF standards.
Concept tested: OSPF Non-Stop Forwarding (NSF) configuration
Source: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_ospf/configuration/15-mt/iro-15-mt-book/iro-nsf.html
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