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Cisco Bug: CSCtb55721 - crash in watchdog NMI with RSPAN configured

Last Modified

Jan 29, 2017

Products (1)

  • Cisco Catalyst 4000 Series Switches

Known Affected Releases


Description (partial)


Cat4500 gets reset due to NMI Watchdog.


The crash occurs on all Cat4500 with 12.2(50)SG and next releases while RSPAN and Wake-On-LAN is configured. 
Can be reproduced consistently in-house using 80+ IP phones:
   -Shut and no shut range of ports (48)
   - Or boot up switch and copy configuration
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