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New Member

trafic on vlan

please how to see trafic on a vlan.when i try show interface vlan i can't see trafic.

3550-Dla#show int vlan 11

Vlan11 is up, line protocol is up

Hardware is EtherSVI, address is 0012.43d4.bf80 (bia 0012.43d4.bf80)

Internet address is 192.168.1.1/30

MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,

reliability 255/255, txload 1/255, rxload 1/255

Encapsulation ARPA, loopback not set

ARP type: ARPA, ARP Timeout 04:00:00

Last input 00:09:07, output 00:00:24, output hang never

Last clearing of "show interface" counters never

Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 315

Queueing strategy: fifo

Output queue: 0/40 (size/max)

5 minute input rate 0 bits/sec, 0 packets/sec

5 minute output rate 0 bits/sec, 0 packets/sec

228052 packets input, 16883793 bytes, 0 no buffer

Received 0 broadcasts (0 IP multicast)

0 runts, 0 giants, 0 throttles

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

250875 packets output, 16883860 bytes, 0 underruns

0 output errors, 0 interface resets

0 output buffer failures, 0 output buffers swapped out

3550-Dla#

Please need a help.

1 REPLY
New Member

Re: trafic on vlan

If you really want a visual into your network, set up a SPAN and use a network analyzer...there are a few free ones out there for Windows, OmniPeek Personal and Wireshark etc...tcpdump.

Note; switches generally don't foward VLAN tags on a SPAN setup, you'd have to set up a tap to capture frames with tags -and ensure your network card driver does not strip the tags, many do.

-E

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