10-29-2009 09:49 AM - edited 03-06-2019 08:22 AM
I am sure someone have implemented this earlier and come across this issue. I have 6500 and 3750 connected via trunk. I configured following for my RSPAN sesssion.
On 6500:
vlan 800
remote-span
monitor session 3 source interface f7/1, f8/31, Fa7/46
monitor session 3 destination interface vlan 800
On 3750
monitor session 3 source remote vlan 800
monitor session 3 destination interface FastEthernet1/0/10
As you can predict my sniffer is connected on f1/0/10 port of 3750. Issue is as soon as I define 'monitor session 3 destination interface FastEthernet1/0/10' on 3750, it will disable that port and my sniffer no longer connect to the network(can't connect with default gateway).
What am I missing here?
10-29-2009 10:05 AM
Found answer of this silly question. It's RSPAN behaviour to put destination monitor port into up/down(monitor) state.
10-29-2009 11:00 AM
Yes you are correct and your sniffer should still receive the data.
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