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Cisco Bug: CSCvt69762 - Self Reload requires a delay in updating ADM control registers to avoid card stuck issues

Last Modified

Oct 06, 2020

Products (6)

  • Cisco ASR 9000 Series Aggregation Services Routers
  • Cisco IOS XR Software
  • Cisco NCS 560-7-SYS Router
  • Cisco NCS 560-4-SYS-E Router
  • Cisco NCS 560-7-SYS-E Router
  • Cisco NCS 560-4-SYS Router

Known Affected Releases


Description (partial)


In Reload rack 0 or hw-module location all reload, we may see card stuck issue for active card in rare conditions.
After Reload card will not boot again and console will not respond.

Reload of chassis.

with dual RP
this issue DOES NOT occur if we execute "hw-module location 0/RPX reload"
this issue could occur on one of the RPs(active) if we execute "hw-module location all reload" or "reload rack 0"
with single RP
this issue could occur with "hw-module location 0/RPX reload"
this issue could occur with "hw-module location all reload" or "reload rack 0"

Card is stuck and is not accessible.
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
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