SPAN multiple port cisco 9300

[teamdv6199]

I think I am right but I just want to verify this, I have 18 ports that I want to be monitored through one source. Can the monitor session be 1? or do I have to put 18. This is my config 

monitor session 1 source interface Gi1/0/1 - 18
monitor session 1 destination interface Gi1/0/19

Does this 

[balaji.bandi]

yes that should work range of Interface as source you like to se.

https://www.cisco.com/c/en/us/support/docs/switches/catalyst-9500-series-switches/218111-verify-span-and-erspan-on-catalyst-9000.html

[liviu.gheorghe · Accepted solution]

The monitor session <number> is the identifier of the SPAN session. Its used to match the sources of the SPAN session with the destinations.

Depending on the hardware platform, you can have 1, 2 or more SPAN sessions that you can configure simultaneously.

Your configuration is valid.