I have two Cisco 3560 switches that I want to monitor the traffic going over 4 of the VLANs, all 4 VLAN travers both switches. I understand how to create the RSPAN, using the http://www.cisco.com/en/US/docs/switches/lan/catalyst3560/software/release/12.1_19_ea1/configuration/guide/swspan.html
website. However my hang up is whether or not following this guide will allow me to monitor traffic from both switches. Reviewing this it seems as if I'm only setting up the ability to monitor the VLAN(s) on the Remote Switch 2 and not Switch 1. Am I reading this incorrectly or there a way to monitor the VLANs from both switches using the RSPAN, or do I simply create the RSPAN on Switch2 and then a regular SPAN on Switch1 both of which have the same destination port?