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Packet capture on 3750X for broacasts / multicasts

gp1200x
Level 2
Level 2

Is there a way to packet capture broadcast and multicasts on 3750X/E/G switches on a port so that I can remotely review the capture with wireshark after sending the pcap to a destination.

I know I can span a port locally and use wireshark to look at all the packets on a port but I don't see this same exact ability using the packet capture features. Specifically I do not see how you can packet capture layer 2 packets in a vlan that an individual port would see. So far everything I have read relates to IP packet traces and using IP access lists but what about tracing layer 2 only packets so that I can remotely view them.  The reason I am asking because of issues that we have with PC network cards flooding networks with layer 2 broadcasts/multicast and creating storms.

If a packet capture on a 3750X can do this please give a quick example.

Thanks 

1 Accepted Solution

Accepted Solutions

johnd2310
Level 8
Level 8

Hi,

I think your best option is to span a port and capture the traffic that way.

Thanks

John

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1 Reply 1

johnd2310
Level 8
Level 8

Hi,

I think your best option is to span a port and capture the traffic that way.

Thanks

John

**Please rate posts you find helpful**
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