Packet drops on stack port?

[rasmus.elmholt]

Hi,

I have a issue with a vendor where they say there are packet drops between some of their devices and a server.

I have 5 Cameras streaming uncompressed packets to a server at 500mbit/s each.

I cannot see any QoS drops or interface errors on the interfaces connected to the cameras or uplinks.

But was wondering if there could be some drops on the stack ring. 3x 9300L in a stack.

How do I get interface details like drops and QoS for the stack ports on the switches?

[Leo Laohoo]

What is the brand of the camera and NVR?  

Is it a well-known brand or an obscure brand?

[rasmus.elmholt]

Hi @Leo Laohoo 

It is a known brand but I cannot remember it at the moment. And I believe that the issue is on the end devices as well. But I need to make 100% sure that there is no issues on the network.

[Joseph W. Doherty]

It would have to be a very busy ring to drop due to lack of bandwidth (9300L StackWise-320).  See table 4's last column in https://www.cisco.com/c/en/us/products/collateral/switches/catalyst-9300-series-switches/white-paper-c11-741468.html/

Unfortunately, unaware of any commands to provide the ring stats you seek.