09-17-2012 11:24 AM - edited 03-07-2019 08:55 AM
Hi All
i have configured SPAN on cisco 4900 series switches its a Loacal SPAN . as there is only commnads to complete this activity but hard luck its not working .
is there any way to debug it or troubleshoot it .
please advise
09-17-2012 11:28 AM
What's not working and can you describe what you're seeing? Also, can you paste the commands that you've configured?
09-17-2012 11:51 AM
Hi thanks for reply ,
commands :
monitor session 1 sourse int gi 0/1
monitor session 1 destination int gi 0/10
i can not see the traffic of gi 0/1 on wireshark (PC connected on gi 0/10)
destination interface is with default configuration .
09-17-2012 12:18 PM
What type of traffic are you trying to see? If it's L2 traffic, you may need to use "encapsulation replicate" at the end of your destination line. Also, make sure that you're listening on the correct interface in wireshark.
09-17-2012 01:07 PM
HI ,
i was trying to cature ICPM traffic .
09-17-2012 07:00 PM
hi,
i agree with John B, try to reconfigure using the 'replicate' keyword.
Switch(config)#monitor session 1 destination interface g0/10 encapsulation replicate
alternatively, try sniffing the source VLAN.
Switch(config)#monitor session 1 source vlan
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