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New Member

QinQ port with giant packets

I have a q-in-q port in a 6509 with 12.2(18)SXF6 with this configuration

interface GigabitEthernet3/48

description QinQ Vlan 4001

switchport

switchport access vlan 4001

switchport mode dot1q-tunnel

mtu 9216

And when I do an show interface, I have too many giants!!!

See:

show interfaces gigabitEthernet 3/48

0 second input rate 15995000 bits/sec, 6847 packets/sec

30 second output rate 42934000 bits/sec, 7398 packets/sec

12119513 packets input, 3487891635 bytes, 0 no buffer

Received 11430 broadcasts (2742 multicast)

0 runts, 286638 giants, 0 throttles

0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored

0 watchdog, 0 multicast, 0 pause input

0 input packets with dribble condition detected

13336371 packets output, 9435347176 bytes, 0 underruns

0 output errors, 0 collisions, 0 interface resets

0 babbles, 0 late collision, 0 deferred

0 lost carrier, 0 no carrier, 0 PAUSE output

0 output buffer failures, 0 output buffers swapped out

Why this? Is someone sending more than 9216 bytes in one packet?

The port is connected to another switch and this switch I tried to setup with MTU 1500 and 9216 and I had the same behavior

1 REPLY
New Member

Re: QinQ port with giant packets

Sorry for the post

I found the BUG.

CSCef87392

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