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Cisco Bug: CSCtb66767 - Backplane NVRAM getting corrupted on a chassis having two PRP3's.

Last Modified

Jan 09, 2017

Products (6)

  • Cisco 12000 Series Routers
  • Cisco IOS XR Software
  • Cisco XR 12410 Router
  • Cisco XR 12416 Router
  • Cisco XR 12404 Router
  • Cisco XR 12406 Router

Known Affected Releases

3.8.0.BASE 3.8.2.BASE 4.0.0.BASE

Description (partial)

Entire backplane NVRAM contents gets corrupted when two or more PRP3's are placed in the chassis and hard power cycle is done on the chassis. Which leads to no MAC address errors and no serial number errors on the chassis.

Issue is seen just with two PRP3 cards placed in the chassis. Issue will not be seen Just with one PRP3 card. If two PPR3's doesnt trigger the issue, then place some E5 cards and then hard power cycle, issue will be seen.
Trigger is hard power cycle of the chassis, which could be poweroff and power on using power cycler, or of switching off and switching on the power button of the chassis or pulling out and plug-in back the power cable of the chassis.
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