05-09-2023 01:56 PM
I am having an issue where we are retiring some 2960x switches with some 9200 series switches. The 9200's are in a stack and connected back with fiber back to the core(9300 series). When i do a( sh cdp nei) on the 9200 i can see the 9300 but when i do the same command on the 9300 i cannot see the 9200.from what i can tell everything is configured correctly but the new stack will not communicate with the core. I don't know what i am missing here.
05-09-2023 02:00 PM
Hi
Did you try to enable CDP?
conf t
cdp run
About the communication with Core, this can be a whole new conversation. Which test are you doing?
05-09-2023 02:04 PM
I tried the enable CDP already.
05-09-2023 02:09 PM
Ports on both sides show up/up
05-09-2023 03:09 PM - edited 05-09-2023 03:09 PM
there are two mode of CDP
you must enable CDP in global
you must enable CDP in interface mode (physical and/or port-channel)
05-09-2023 09:03 PM
What is the firmware of both switches.
There are bugs triggered when different sub-models, like a 9200 connected to a 9300, the SFP would just stop dropping CDP traffic.
This only happens if the switches are interconnected by optics. IF the same switches are connected by copper, they are fine.
05-10-2023 08:28 AM
C9300-24T 16.12.05b
C9200 48p 17.03.04
05-11-2023 11:13 PM
@mrom2 wrote:
C9300-24T 16.12.05b
A switch on 16.12.X train. I can see where the problem is right now.
05-12-2023 12:48 AM
Hello
Update the Software on the 9ks
05-12-2023 07:47 AM
updated as suggested to latest version 17.06.05 but now the 9200 stack will not come up. i get this error: failed to boot from flash:package.conf(Not Found)
05-12-2023 11:25 PM
IF the switch is in ROMMON, post the complete output to the command "dir flash:".
05-15-2023 09:20 AM
I figured out what the issue was. the 's' in packages was missing(flash:package.conf). Once i got that figured out i went to the active master switch(in my case Switch #5) and booted to the correct flash and the stack came up as it should
05-15-2023 09:39 AM
this solve the stack or stack and cdp issue ?
05-16-2023 10:04 AM
Both it seems. Once the stack came up i was able to see the switch from the 9300 core switch.
05-16-2023 10:07 AM
Thanks a lot for update us.
MHM
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