Exam 300-415 All QuestionsBrowse all questions from this exam
Go to Exam
Question 57

Which OSPF command makes the WAN Edge router a less preferred exit from a site with a dual WAN Edge design?

A.

B.

C.

D.

    Correct Answer:

    The correct answer is 'A' as the 'max-metric' command effectively makes the WAN Edge router advertise its routes with the highest possible metric. This makes it the least preferred path for OSPF, ensuring that it is used as an exit only if no other paths are available. While syntax details mentioned in the discussion suggest that the complete version of the command may be required, the primary command listed still aligns with making the router less preferred. 'C' involving summarization makes the route less specific but does not necessarily achieve the same effect of making the router less preferred as directly influencing the OSPF cost metric.

Discussion
Matt2727

whilst max-metric would work... it would need the syntax with area number & router-lsa at the end, both are missing. C looks like the best bet here.

konspali

Stop thinking only about SDWAN commands and think of the Routing portion. By doing summarization we instantly make the router less preferred, as the other one will have more specific routes. Correct answer should be C.

Stanleymahamadi

Correct answer C

incog

A looks like the option: The OSPFv3 max-metric router LSA feature enables OSPFv3 to advertise its locally generated router LSAs with a maximum metric. The feature allows OSPFv3 processes to converge but not attract transit traffic through the device if there are better alternate paths.

Jervv

If you enter A and B on a vEdge, these commands are not accepted. Go for C

Outlaw_87

vpn vpn-id --> router --> ospf --> max metric not accepted, only accepts if you write router-lsa after max-metric vpn vpn-id --> router --> ospf --> area number --> nssa --> no-summary is ACCEPTED in vEdge

Idro

A Is correct : https://sdwan-docs.cisco.com/Product_Documentation/vManage_Help/Release_18.2/Configuration/Templates/OSPF

Jervv

A would be correct if there is "router-lsa" vEdge-INET-1# conf t Entering configuration mode terminal vEdge-INET-1(config)# vpn 1 vEdge-INET-1(config-vpn-1)# router vEdge-INET-1(config-router)# ospf vEdge-INET-1(config-ospf)# max-metric --------------------------------------^ syntax error: incomplete path vEdge-INET-1(config-ospf)# max-metric ? Possible completions: router-lsa Advertise own router LSA with infinite distance vEdge-INET-1(config-ospf)# max-metric

Roger95

try with "area number "

Precission21

its not, doing "max-metric" will cause router to advertise it with infinite metric, even if primary path will be lost backup won't be installed since metric is infinite hence invalid to install. C is correct because you summarize prefix to make it less specific so it's not preferred when main route is installed but when the main is lost this summary will come into play