I have IPS 5.x in promiscous mode. I wanted to configure my catalyst switch 3750 so that It can monitor not only ports but also few VLAN that on the same switch.
monitor session 1 source interface Gi1/0/1 , Gi1/0/10
monitor session 1 destination interface Gi1/0/5
It is working fine with the interface level configuration. But when i try to configure the monitor session for the VLAN it gave me error.
monitor session 1 source vlan 333
% Cannot add VLANs as sources for SPAN session 1
Why it is so, Can a same port can be act as destination for more than one session.