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Community Member

Cisco 6500 DFC Mismatch Minor

Hi,

We are facing problem in installing Ten Gig module in one of our 6500 chasis that it is not coming up and status is 'PwrDown' when use 'show module' command. We are also getting following log messages,

Nov 23 08:10:00.043: %C6KENV-SP-2-DFCMISMATCHMINOR: Module 7 DFC installed is incompatible with system operating mode. Power denied.
To enable Module 7 DFC, the system must be reset.
WARNING: Any system reset will change the system operating mode which can result in degradation of system performance. To eliminate this from occurring, remove Module 7 DFC or replace with a system compatible DFC.

What could be the possible root cause and solution of this problem.

Thanks.

2 ACCEPTED SOLUTIONS

Accepted Solutions
Cisco Employee

Re: Cisco 6500 DFC Mismatch Minor

Hi,

What is the PFC mode and what is the DFC type you have in module 7?.

If the PFC mode is 3C and if you are trying to insert module with DFC type 3B, you will get this error.

HTH,

Nagendra

Hall of Fame Super Blue

Re: Cisco 6500 DFC Mismatch Minor

rmujeeb81 wrote:

Hi,

We are facing problem in installing Ten Gig module in one of our 6500 chasis that it is not coming up and status is 'PwrDown' when use 'show module' command. We are also getting following log messages,

Nov 23 08:10:00.043: %C6KENV-SP-2-DFCMISMATCHMINOR: Module 7 DFC installed is incompatible with system operating mode. Power denied.
To enable Module 7 DFC, the system must be reset.
WARNING: Any system reset will change the system operating mode which can result in degradation of system performance. To eliminate this from occurring, remove Module 7 DFC or replace with a system compatible DFC.

What could be the possible root cause and solution of this problem.

Thanks.

Well, the solution is as the error message says ie. you need to reboot the 6500 switch. But you also need to be aware of the performance degradation this might cause. Have a read of this link which explains compatibility issues between PFC/DFC & CFC cards -

http://www.cisco.com/en/US/products/hw/switches/ps708/products_qanda_item09186a00809a7673.shtml

Jon

3 REPLIES
Cisco Employee

Re: Cisco 6500 DFC Mismatch Minor

Hi,

What is the PFC mode and what is the DFC type you have in module 7?.

If the PFC mode is 3C and if you are trying to insert module with DFC type 3B, you will get this error.

HTH,

Nagendra

Hall of Fame Super Blue

Re: Cisco 6500 DFC Mismatch Minor

rmujeeb81 wrote:

Hi,

We are facing problem in installing Ten Gig module in one of our 6500 chasis that it is not coming up and status is 'PwrDown' when use 'show module' command. We are also getting following log messages,

Nov 23 08:10:00.043: %C6KENV-SP-2-DFCMISMATCHMINOR: Module 7 DFC installed is incompatible with system operating mode. Power denied.
To enable Module 7 DFC, the system must be reset.
WARNING: Any system reset will change the system operating mode which can result in degradation of system performance. To eliminate this from occurring, remove Module 7 DFC or replace with a system compatible DFC.

What could be the possible root cause and solution of this problem.

Thanks.

Well, the solution is as the error message says ie. you need to reboot the 6500 switch. But you also need to be aware of the performance degradation this might cause. Have a read of this link which explains compatibility issues between PFC/DFC & CFC cards -

http://www.cisco.com/en/US/products/hw/switches/ps708/products_qanda_item09186a00809a7673.shtml

Jon

Community Member

Re: Cisco 6500 DFC Mismatch Minor

Thanks Jon and Nai Kumar.

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