Description: A table containing fast cache entries. The table contains cache information for FST peers or direct encapsulation peers (without local acknowledgement enabled).

When using these encapsulation types, a fast-switching cache must be built. The first frame between two end stations will be process switched, and during this process an entry will be made in the fast-switching cache so that subsequent frames between those end stations may be fast switched.

End station 1 (S1) and End station 2 (S2) are used to represent the two end stations of the faat cache entry. S1 is always an end station which is locally attached. S2 is always an end station which is remote.