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Ethernet Switches & Routers

New Contributor
Posts: 4
Registered: ‎01-29-2013

Port mirror on FCX-48GS


I'm trying to do a simple port mirroring on an FCX-48GS switch. I want traffic from ethernet 1/1/22 to be copied to ethernet 1/1/43, using the following configuration:

switch1-1(config)#mirror-port ethernet 1/1/43

switch1-1(config)#interface ethernet 1/1/22

switch1-1(config-if-e1000-1/1/22)#monitor ethernet 1/1/43 both

Show mirror gives me the following output:

Mirror port 1/1/43

  Input monitoring      : (U1/M1)  22

  Output monitoring     : (U1/M1)  22

As I understand it this looks correct, but I don't see any traffic on port 1/1/43 (using a windows pc with wireshark) when a client is sending traffic on port 1/1/22. Am I missing something?

port 1/1/22 belongs to two vlans with Dual-mode configured (to allow PCs and phones on the same port), does this need any extra configuration to mirror?

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