Instead of monitoring the physical interface, monitor the vlan from a Cisco IOS perspective on a CAT6500. This will capture all physical interfaces associated with that vlan for mirroring/span. HTH Jonathan #22744 Sent from my HTC on the Now Network from Sprint! ----- Reply message ----- From: "A. Pishdadi" <apishdadi@gmail.com> Date: Wed, Feb 29, 2012 11:12 pm Subject: Switch designed for mirroring tap ports To: "NANOG" <nanog@nanog.org> Hello All, We are looking for a switch or a device that we can use for mirroring tap ports. For example , take a mirror port off of a core router say a 6509, connect it to a port on said device, say port 1. I would like then to be able to mirror port 1 on said device to multiple ports, like port 2 , 3, 4. We have the need to analyze traffic from one port on multiple devices. Seems most switches are limited to mirroring to a max of 1 or 2 ports. Any suggestions would be great. Thanks, Ameen