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How to Increase buffer size in ATA186 ( ver 3.1.1)

Hi Everyone,

I am facing registration issue with ATA 186 with cucm 7.1.5 , to resolve this I want to increase the buffer size from 4k to 10 k.

So how can i increase buffer size  from 4k to 10 k in ATA 186.

Regards

Rohit      

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Cisco Employee

How to Increase buffer size in ATA186 ( ver 3.1.1)

Hi Deepak,

This is a well known issue in ATA 186: CSCsd44357

The fix for this defect is in 3.2(4).

Since ATA cannot download config file "ATA.cnf.xml" from CCM if its size is over 4k,

ATA cannot get the load information in it  to start upgrating the new firmware.

As a workaround to upgrade the patch, the custom could  temporarily decrease  the config file size to 4k or smaller, such as only keep one CCM in CM group, disable all build-in Phone Services (for CCM 7.x).

Another workaround:  generate the atadefault.cfg which also includes a load information, and save this file to TFTP network locale path, for example "\United_States\atadefault.cfg". ATA will try this file if it cannot get cnf.xml

HTH.

Regards,

Harmit.

View solution in original post

1 REPLY 1
Highlighted
Cisco Employee

How to Increase buffer size in ATA186 ( ver 3.1.1)

Hi Deepak,

This is a well known issue in ATA 186: CSCsd44357

The fix for this defect is in 3.2(4).

Since ATA cannot download config file "ATA.cnf.xml" from CCM if its size is over 4k,

ATA cannot get the load information in it  to start upgrating the new firmware.

As a workaround to upgrade the patch, the custom could  temporarily decrease  the config file size to 4k or smaller, such as only keep one CCM in CM group, disable all build-in Phone Services (for CCM 7.x).

Another workaround:  generate the atadefault.cfg which also includes a load information, and save this file to TFTP network locale path, for example "\United_States\atadefault.cfg". ATA will try this file if it cannot get cnf.xml

HTH.

Regards,

Harmit.

View solution in original post

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