Cisco 2950 SPAN session

[Sudhir Menon]

Hi I have a 2950 series switch on which i need to run 2 different span sessions for monitoring but when i give the session id 2 it says not supported can someone help me in this regard is this a bug or a feature of Cat 2950

[garytayl]

There is a limitation of one active SPAN session on 2950s.

Check the Configuration Guidelines:

http://www.cisco.com/en/US/docs/switches/lan/catalyst2950/software/release/12.1_9_ea1/configuration/guide/swspan.html#wp1044170

[Sudhir Menon]

So is there any workaround for this issue to overcome the limitation

[garytayl]

You can specify as source ports those two ports and send that traffic to same destination port.

One workaround is by using one SPAN and for the other port you want to monitor, connect a Hub to that port and on the hub connect the device you want to monitor and the box that is going to receive all that traffic (not a very nice workaround by the way).

The other way is by using a Remote SPAN session and send that to another capable RSPAN switch.