IEEE 802.3 Ethernet/Fast Ethernet, . I II, .
II , Ethernet. Fast Ethernet. , . . , . , 10BASE -T 100BASE-TX. , , , , , 10BASE -T 10BASE-FL 100BASE-TX 100BASE-FX. , , 100BASE-TX 100BASE-T4.
II , I. , 46 ( 100BASE-TX /FX) 67 ( 100BASE-T4). ( , 24). , , , , .
II (UpLink port). (. 13.5).
. 13.5. II
II , I, , , . , I.
I , , . .
II , . , , 100BASE-TX, 100BASE-T4 100BASE-FX. , ( , 140 ).
I , . . , , , , .
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SNMP (Simple Network Management Protocol ). , , (Intelligent Hub).
SNMP 1988 IAB (Internet Activities Board). RFC 1067, RFC 1098, RFC 1157. IAB ASN. 1 (Abstract Syntax Notation). SNMP , IP IPX, , .
SNMP ASN. 1 , MIB (Management Information Base ). , , , .
, SNMP. , .
, (NMS Network Management Station) , , , .
SNMP :
- GET ( MIB) .
- GET NEXT .
- SET () .
SNMP (PDU Protocol Data Unit). MIB, MIB . MIB (MIB -II), , (RMON MIB), SNMP.