Ok, not sure if anyone here can help, but I am really against a wall here. I have an environment that is mostly Nortel switches, but I have a requirement to setup some IDS equipment (Cisco IDS) but cannot setup a SPAN port to capture all the traffic going across the Nortel equipment since they only allow you to monitor a limited number of ports via port mirroring. My question to the group is this. If I introduce a cisco switch to the Nortel environment and trunk all the VLAN's to the cisco switch via 802.1q, can I setup the SPAN on the cisco switch for a VLAN in the environment and capture all traffic going across the VLAN. I know you can do this in a Cisco infrastructure, but not sure if I setup the SPAN port on a cisco switch in a nortel environment if it will work the same. If anyone can help I would really appreciate it.