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Cisco Bug: CSCta48374 - Non-stop crash at aib of Lc/RP on IOS-XR 3.7.0

Last Modified

May 13, 2018

Products (11)

  • Cisco Carrier Routing System
  • Cisco CRS-1 Line Card Chassis (Dual)
  • Cisco CRS-1 Line Card Chassis (Multi)
  • Cisco CRS-1 16-Slot Line Card Chassis
  • Cisco CRS-1 4-Slot Single-Shelf System
  • Cisco IOS XR Software
  • Cisco CRS-1 8-Slot Line Card Chassis
  • Cisco CRS-1 Fabric Card Chassis
  • Cisco CRS-1 8-Slot Single-Shelf System
  • Cisco CRS-1 Multishelf System
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Known Affected Releases

3.7.0.BASE

Description (partial)

Symptom:
 
 Crash at aib of LC and/or RP on IOS-XR 3.7.0 occurred by inconsistancy
of adjacency information.
 If this condition is continued, this crash is also continued. 

 Conditions:
 
 For this to happen we should have atleast got close to 65000 adjacency
creates/deletes . This could happen only if the interface flaps for so long or
there were numerous shut/no shut on that interface. It should not happen in
other cases. In the customer network we happen to notice interface state
transitions in very large number and that's how this issue was hit.
 
 This is bound to happen from release 3.7.0 and above.
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Bug Details Include

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