This object denotes the default maximum number
of unacknowledged I PDUs that LLCs on this port
can expect to receive from their remote LLC
partners. This count is referred to as 'k' in
the IEEE 802.2 specification [5].
This port default value may be overridden by a
non-zero SAP default value in the
llcSapAdminMaxUnackedIPDUsRcv object or by a
non-zero value in the
llcCcAdminMaxUnackedIPDUsRcvd object.
At connection setup, an implementation may
choose to send this value to the remote LLC,
using an XID frame.