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Cisco Bug: CSCuq87494 - C3G60 LTC2978 access error and LC crashed

Last Modified

Mar 05, 2018

Products (1)

  • Cisco uBR10000 Series Universal Broadband Routers

Known Affected Releases

12.2(33)SCH

Description (partial)

Symptom:
After boot up CMTS with C3G60 line card.
First see some LTC2978 write error, then c3g60 card crashed.

Conditions:
1. Boot CMTS with c3g60 card inserted.
2. See some errors about LTC2978 access.
3. c3g60 card crashed after the error.
4. c3g60 will keep crashing again and again and never came up.

This issue only seen with LC which have hardware issue in I2C access. Will not seen with good LC.
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