asked on

RSPAN config for monitoring

I have a Cisco 4507 core switch that I would like to monitor traffic from several VLANs and send it out to a Cisco 3750 switch connected by fibre on ports Gi7/5 and Gi7/6. These ports are not already aprt of a VLAN.

The VLANs I want to monitor are VLANs 1 and 100 (user ports and server ports on the modules).

I want to push all the traffic to port 11 on my remote 3750. The machine on that port will also need to be able send traffic and act as a server.

How may I accomplish this?

tvman_od

You want to create something like this? If you would like to monitor ALL ports on 4507, there is a chance that it will not allow that many and all the traffic will not fit into the monitoring port.

[Monitored port 4507] ----->[Monitoring port 4507] ======>[monitored port 3750] ------>[monitoring port 3750] ====> [collector/parser]

Make note that monitoring ports are unidirectional and cannot be used for anything else.

chronolith

ASKER

I have done this before on HP equipment (much much simpler to roll out, and allowed the machine on the monitoring port to still use the network) on a much larger network. The traffic on this network is actually quite low, only a couple dozen users. I have faith that the monitoring port can handle it.

So, yes that is essentially what I want to set up.

ASKER CERTIFIED SOLUTION

tvman_od

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