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Question 18 - JN0-664 discussion

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Which origin code is preferred by BGP?

A.
Internal
Answers
A.
Internal
B.
External
Answers
B.
External
C.
Incomplete
Answers
C.
Incomplete
D.
Null
Answers
D.
Null
Suggested answer: C

Explanation:

BGP uses several attributes to select the best path for a destination prefix. One of these attributes is origin, which indicates how BGP learned about a route. The origin attribute can have one of three values: IGP, EGP, or Incomplete. IGP means that the route was originated by a network or aggregate statement within BGP or by redistribution from an IGP into BGP. EGP means that the route was learned from an external BGP peer (this value is obsolete since BGP version 4). Incomplete means that the route was learned by some other means, such as redistribution from a static route into BGP. BGP prefers routes with lower origin values, so Incomplete is preferred over EGP, which is preferred over IGP.

asked 18/09/2024
David Sichimwi
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