SPAN on Nexus is not working

[manisha.sharma]

Hi Experts,

i tried to configure SPAN on Nexus 9k. Nexus has 10G port and the destination device (my laptop has wireshark) is connecting with 1G port.

I configured this on destination port:

interface Ethernet1/15
description Node - 15 - Nic
switchport
switchport mode trunk
switchport monitor
no shutdown

monitor session 1
source interface port-channel45 both
destination interface Ethernet1/15
no shut

and destination device has IP from one vlan. but i couldn't go out of this trunk port.

Is there any configuration problem ?

Please help.

[Andrea Testino]

Manisha,

Your configuration is fine as far as the SPAN session goes. However, you cannot expect to have network connectivity on any device that is connected to a port that is configured as a SPAN destination. When traffic ingresses a SPAN destination port on a Nexus, we will drop it on ingress - This is correct and expected behavior.

Hope that helps.

- Andrea