Preview Tool

Cisco Bug: CSCte93101 - HDLC traffic can cause watchdog crash

Last Modified

Jan 28, 2017

Products (1)

  • Cisco IOS

Known Affected Releases


Description (partial)

Symptoms: A Cisco router running Cisco IOS may crash by Watchdog Timeout.  
 The logs prior to
 the crash will have repeated errors similar to:
 %SYS-2-INTSCHED: 'event dismiss' at level 3 -Process= "OSPF-100 Hello", 
 %SYS-2-INTSCHED: 'idle' at level 3 -Process= "IP Input", 

 The process listed is not relevant.
 Conditions: This symptom is observed on a router with an interface using HDLC 
 encapsulation with traffic
 passing. HDLC is the default encapsulation type for serial interface.
Bug details contain sensitive information and therefore require a account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.