The MSH chassis can simultaneously maintain a number of different sub-networks. Examples of these are the independent repeaters and a number of Token Rings. These fundamental services are referred to as facilities. Each card in the chassis can either provide or be connected to one or more of these facilities. This table provides a means of determining and changing the facilities used by a particular card.

The number of entries per card depends on the type of card. For example an 802.3 repeater card can be expected to have a single entry while an 'n' port bridge would have 'n'. The number of entries for a particular card is fixed (can't insert into or delete from this table).