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Cisco Bug: CSCte49434 - %CMRP-3-I2C_WRITE: R1/0: cmand: An I2C write has failed because I

Last Modified

Feb 27, 2018

Products (1)

  • Cisco ASR 1000 Series Aggregation Services Routers

Known Affected Releases


Description (partial)


Upon doing RP switchover in ASR1K router, the following error messages are seen in RP console.

*Jan 18 19:11:13.860: %IOSXE-3-PLATFORM: R1/0: kernel: /scratch/mcpre/BLD-BLD_V122_33_XNF_ASR_RLS6_THROTTLE_LATEST_20100118_180012/os/linux/drivers/binos/i2c/pca9535/pca9535_main.c:set_reg_output_port_0 (line 185): write pca9535 register at 02 failed
*Jan 18 19:11:13.882: %CMRP-3-I2C_WRITE: R1/0: cmand:  An I2C write has failed because Input/output error -Traceback= 1#4800cc02ea45b52bc53dc957092af093   errmsg:EDA4000+2160 :10000000+24608 :10000000+4C354 :10000000+4A1AC :10000000+46FEC :10000000+47598 :10000000+492F0 :10000000+49B2C evlib:F15B000+D854 evlib:F15B000+FF74 :10000000+311E4 c:E53C000+1D078 c:E53C000+1D220


This problem is seen in ASR1006 router with redundant RPs when the command "redundancy force-switchover" is issued. This problem is seen very infrequently.
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