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.