Assertion: neighbor | /r/HasProperty | reachable
Facets:
value: no longer
type: TEMPORAL
value: on the link
type: LOCATION
value: via a cached link layer address
type: MANNER
Source sentences:
text: Neighbor solicitations are used by nodes to determine the link layer address of a neighbor, or to verify that a neighbor is still reachable via a cached link layer address.
text: Neighbor unreachability detection (NUD): determine that a neighbor is no longer reachable on the link.