This object identifies the current assignment of this attachment point in this card. The legal values of this object depends on the type card. Writing an illegal value to this object will cause an error. Generally the table following identifies the possible values, depending on type. Each card type will support a subset of these values.

Type Possible Values IEEE8023 0 Isolated (i.e. this interface is not connected to anything). 1,2,3 One of the backplane 802.3 networks. IEEE8025 0 Isolated 1..0x7f A ring number. This must match the value of one of he ring builder cards or the request will be rejected. FDDI Unknown at the moment. Probably similar to IEEE8025

Note: Values greater than 0x7f are reserved to be private values for a particular card. The meaning of these values depend on the card type. A possible use of this is in a multiport 802.3 bridge. Consider such a bridge being capable of bridging between three sources and having two external 802.3 connections. Such a bridge would have three entries in the facility table, one for each bridge source. Each entry could be assigned to one of the backplane 802.3 paths or to one of the two external connections. In this case the possible values for each table entry would be:

0x00 : Not used (isolated) 0x01, 0x02, 0x03 : One of the backplanes 0x81, 0x82 : One of the external connections.

The MSH agent will not allow two different entries in this table for the same card to be assigned to the same facility!