An engineer is configuring MPLS LDP on a Cisco router. The router uses downstream unsolicited mode with liberal label retention. Which behavior describes the label distribution and retention on this router?
Trap 1: The router requests labels from neighbors and retains only labels…
Describes downstream on demand with liberal retention.
Trap 2: The router sends label bindings only for directly connected routes…
Describes a mix of unsolicited and conservative.
Trap 3: The router sends label bindings only in response to requests from…
Describes downstream on demand with conservative retention.
- A
The router requests labels from neighbors and retains only labels for the best path.
Why wrong: Describes downstream on demand with liberal retention.
- B
The router sends label bindings only for directly connected routes and discards labels from non-reachable next hops.
Why wrong: Describes a mix of unsolicited and conservative.
- C
The router sends label bindings only in response to requests from upstream neighbors and retains only labels for directly connected next hops.
Why wrong: Describes downstream on demand with conservative retention.
- D
The router sends label bindings to all neighbors without receiving requests and retains all received label bindings.
Correct description.