, , , , (Duplicate Address Test, DAT).
, , (Active Monitor Present, AMP).
(Standby Monitor Present, SMP) , .
(Claim Token, CT), , , , .
(Beacon, BCN) , , , , . , , ( Token Ring) . BCN , BCN (NAUN) . BCN - , . Token Ring - , Beacon- .
(Purge, PRG) , .
802.5 , 802.3. 2, 6 . 2-, 6- . 6- , . , , .
, . . , , (Routing Information Field, RIF). , Token Ring, .
INFO MAC , LLC. , , , , .
FS 1 4 2 : . CRC, : FS . , , (, , , , ). , , , .
, . , .