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Troubleshooting 4 - 9
The 802.3 Header is defined by IEEE and consists of:
– Destination (MAC) address (6 octets)
– Source (MAC) address (6 octets)
– Enet Type (2 octets)
The 802.2 Header is defined by IEEE and consists of:
– Destinations SAP (1 octet)
– Source SAP (1 octet)
– Type (1 octet)
– Protocol ID (3 octets)
The 3Com Protocol Header is defined by 3Com and consists of:
– Protocol ID (2 octets
As stated earlier, tag resolution is initiated to resolve a 3Com name to a
network address. This occurs when the name is used in the
REMOTE_LOGIN and the PING commands.
xx-xx-xx-xx-xx-xx xx-xx-xx-xx-xx-xx SIZE-14
0xAA (SNAP) 0xAA (SNAP) 0x03 (UI) 0x08008F (3Com)
For Remote Character Protocol
0x81b2 (RTAG) 0x81b2 (RTAG)
0x81b1 (RCP)
For Tag Resolution
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