10G Module on Switch 3750 stacked

[FayezIllariyeh]

Hello, 

I have two stacked 3750 switches, each with a 10G module. The stack keeps generating the following log:
"%PLATFORM_SM10G-6-LINK_UP: The FRULink 10G Service Module (C3KX-SM-10G) communication has been established."
I’m not sure which switch the issue is on, the first or the second.

[Flavio Miranda]

@FayezIllariyeh 

The message seems to not be a problem, Just a warning. 

  C3KX-SM-10G is a service module not network module. Are you using some special service on this switch? 

Error Message    PLATFORM_SM10G-6-LINK_UP: The FRULink 10G Service Module (C3KX-SM-10G) 
communication has been established.

Explanation    Communication is established with the FRULink 10G service module.

Recommended Action    No actions is required.

[FayezIllariyeh]

It is more accurate for me to say that there are two messages appearing on syslog. The first one is:

%PLATFORM_SM10G-3-NO_RESPONSE: The FRULink 10G Service Module (C3KX-SM-10G) is not responding.

And the second one comes immediately after:

%PLATFORM_SM10G-6-LINK_UP: The FRULink 10G Service Module (C3KX-SM-10G) communication has been established.

I do not understand the repeated occurrence of these messages. I am using two Point-Point Fiber on Switch 1 Module and two point-point Fiber on Switch 2 Module.

Are you suggesting that the service (link availability) is disconnecting and reconnecting, and this is not a physically or hardware Module itself issue? There are Point-Point services on both switches, but how can I determine which specific service is disconnecting and reconnecting at the same time? How can I identify which switch is causing the issue, the first or the second one?

[Leo Laohoo]

What firmware is the switch stack on?

[FayezIllariyeh]

15.2(4)E6 C3750E-UNIVERSALK9-

[Leo Laohoo · Accepted solution]

Is the C3KX-SM-10G securely installed? 

I mean, I have seen people install the C3KX-SM-10G but the mounting screws are left dangling.  Are the C3KX-SM-10G mounting screws secure?

[vishalbhandari · Accepted solution]

@FayezIllariyeh This log message is informational and simply indicates that the 10G module (C3KX-SM-10G) has established communication. It does not point to an issue but rather confirms that the module is up. Since you have a stack of two 3750 switches, you can check which switch has the module installed using the command:

show inventory

or

show switch

Look for the module under each switch in the stack. If you suspect any issues, you can also check the module's status with:

show platform sm10g

If the log appears frequently or unexpectedly, ensure both modules are properly seated and running compatible firmware.