Description: This octet string represents the current

protocol stack configuration supported

by the agent, encoded as a bit string.

Each protocol stack is represented

by a single bit. When the value of a

bit = 1, it indicates that the protocol

stack on the agent represented by that

bit is supported; when zero, the protocol

stack is not supported. The number of

octets in the string is always integer

multiple of the octet. The first protocol

stack will encode in the least significant

bit of the first octet. Current, only

IP Stack(bit 0) and IPX Stack(bit 1) were

defined, all other bits should be zero.