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FAQ-Why the TN11L4G and TN11TBE Boards Process Packets Differently When the TPIDs of the Two Boards Are Not 0x8100

Publication Date:  2012-07-25 Views:  45 Downloads:  0
Issue Description
Q:
When the tpid value of the TN11TBE board ranges from 0x600 to 0xffff, packets whose tpid is 0x8100 are identified as VLAN tag packets. For the TN11L4G board, only when the tpid value is 0x8100, packets whose tpid is 0x8100 are identified as VLAN tag packets. If the tpid of the TN11L4G board is not 0x8100, then packets whose tpid is 0x8100 are identified as untag packets. 
 
Alarm Information
Null 
Handling Process
A:
Due to the chip differences, packets whose tpid value ranges from 0x600 to 0xffff can enter the TN11TBE board and only those whose tpid value is 0x8100 are identified as VLAN tag packets. For the TN11L4G board, only the packets whose tpid value is 0x8100 are allowed to enter the board and identified as VLAN tag packets. 
 
Root Cause
Null 
Suggestions
Null 

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