Hi,
Seems like you are hitting the following:
CSCdu41874, which was fixed in the following 12.1 & 12.2codes:
12.1(12.05)EC, 12.1(12.05)E, 12.1(11.05)EC, 12.1(11.05)E, 12.1(11b)E
12.2(06.04)B 12.2(04)XM 12.2(06.04)PB 012.001(012.002)12.2(06.02u)DA 12.2(05.08)PI 12.2(05.08)T 12.2(05.08)S 12.002(005.008)
If you cannot get access to the required code, open a TAC case for one to be posted for you,
Hope this helps,
Regards,
Aamir
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