Which set of BGP attributes is preferred by the Junos OS?
A.
MED. 100
AS path: 50 50 50
Local preferencE. 50
Origin: I
B.
MED. 50
AS path: 50 50 50
Local preferencE. 1
Origin: E
C.
MED. 100
AS path: 50 50 50 50
Local preferencE. 50
Origin: I
D.
MED. 50
AS path: 50 50 50
Local preferencE. 50
Origin: E
This answer is correct
BGP determines the best path to each destination for a BGP speaker by comparing path attributes according to the following selection sequence:
Select a path with a reachable next hop.
Select the path with the highest weight.
If path weights are the same, select the path with the highest local preference value.
Prefer locally originated routes (network routes, redistributed routes, or aggregated routes) over received routes.
Select the route with the shortest AS-path length.
If all paths have the same AS-path length, select the path based on origin: IGP is preferred over EGP; EGP is preferred over Incomplete.
If the origins are the same, select the path with lowest MED value.
If the paths have the same MED values, select the path learned by means of EBGP over one learned by means of IBGP.
Select the path with the lowest IGP cost to the next hop.
Select the path with the shortest route reflection cluster list. Routes without a cluster list are treated as having a cluster list of length 0.
Select the path received from the peer with the lowest BGP router ID.
Select the path that was learned from the neighbor with the lowest peer remote address.
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IT IS ONlY FOR CISco
Select the path with the highest weight.
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