This object denotes the default value for the
maximum number of times which LLCs on this port
shall retry a PDU following the expiration of
the acknowledgement timer, the P-bit timer or
the reject timer. When these retries are
exhausted, the link shall be declared inactive.
This count is referred to as 'N2' in the IEEE
802.2 specification [5].
This port default value may be overridden by a
non-zero SAP default value in the
llcSapAdminMaxretransmits object or by a
non-zero value in the llcCcAdminMaxRetransmits
object.