Depending on the IOS Version and platform, the Remote SPAN configuration can be a bit different. In this post I will be configuration RSPAN session between a Cisco 6506 switch running IOS Version 12.2(33)SXI and Cisco 6509 running IOS Version 12.2(17d)SXB1.
Source: Cisco 6506 (IOS Version 12.2(33)SXI)
1. Configure VLAN which will be used to carry traffic across the trunk link. If the VTP pruning is enabled, make sure its not enabled for the VLAN you are using for RSPAN session.
2. Create the monitor session with type RSPAN
monitor session 1 type rspan-source
Destination: Cisco 6509 (IOS Version 12.2(17d)SXB1)
Configuration would be a bit different from previous for 6509
monitor session 1 destination interface Gi2/20