3com 4500 26-PORT User Manual

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Use the 

 command to view whether the port 

loopback detection has been enabled. If it has been enabled, then the time 
interval of the detection and the current port loopback information will also be 
displayed.

To display if the port loopback detection is enabled, enter the following:

<4500>display loopback-detection

Allow jumbo frame to pass

Indicates that jumbo frame are allowed to pass 
through the port

PVID

Indicates the port default VLAN ID.

Mdi type

Indicates the cable type

Port link-type

Indicates the port link type

Tagged VLAN ID

Indicates the VLANs with packets tagged

Untagged VLAN ID

Indicates the VLANs with packets untagged

Last 300 minutes input rate: 

 

0 packets/sec, 0 bytes/sec

Last 300 minutes output rate: 

 

0 packets/sec, 0 bytes/sec

Displays the input/output rate and the number of 
packets that were passed on this port in the last 
300 seconds

Input(total):  0 packets, 0 bytes

         - broadcasts, - multicasts

 Input(normal):  0 packets, 0 bytes

         0 broadcasts, 0 multicasts

 Input:  0 input errors, 0 runts, 0 giants,  
0 throttles, 0 CRC

         0 frame,  - overruns, - aborts, - 
ignored, - parity errors

 Output(total): 0 packets, 0 bytes

         - broadcasts, - multicasts, - pauses

 Output(normal): 0 packets, 0 bytes

         0 broadcasts, 0 multicasts, 0 pauses

 Output: 0 output errors,  - underruns, - 
buffer failures

         - aborts, 0 deferred, 0 collisions, 0 
late collisions

         - lost carrier, - no carrier

The statistics information of input/output packets 
and errors on this port. A “-” indicates that the 
item isn't supported by the switch.

Table 6   Output Description of the Display Interface Command