I would like to config RSPAN between switch#A and switch#B, i have config switch#A with RSPAN source session on interface f0/22, reflector-port on int f0/8 and vlan 99. Switch#B i have config RSPAN dest session on interface f0/4 , it's not work !! (No any input traffic on interface f0/4). Please help me to suggest and correct my config
One thing is very important: is VLAN 99 declared as an RSPAN VLAN? If you do not do that, the switches learn the MAC forwarding tables in the normal way, and so you will only see a tiny protportion of the traffic on your monitor ports. Do this on your VTP server:
There are some other restrictions. The RSPAN VLAN must not be the native of your trunk, you must not configure any access ports on the RSPAN VLAN, etc. Here is some doc:
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