Which set of BGP attribute values is most preferred by the Junos OS?

Which set of BGP attribute values is most preferred by the Junos OS?

Which set of BGP attribute values is most preferred by the Junos OS?

A.
Origin?
Local Preference 1
AS Path 20 10 3 2 1

B.
Origin I
Local Preference 100
AS Path 10 3 2 1

C.
Origin I
Local Preference 1
AS Path 20 10 3 2 1

D.
Origin E
Local Preference 100
AS Path 10 3 2 1

Explanation:

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ciscosux

ciscosux

Origin : I takes preference over E

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Oleg

Oleg

– highest local preference;
– the shorter AS path;
– origin code ( I (IGP) < E (EGP) < ? (Incomplete)).
– the lowest MED value (from the same neighboring AS);
– EBGP routes are preferred to IBGP routes.

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