Preview Tool

Cisco Bug: CSCun40957 - ISR4400-X CSR1000v Ucode crash when sending large packets over small MTU

Last Modified

Feb 04, 2017

Products (1)

  • Cisco 4000 Series Integrated Services Routers

Known Affected Releases

15.3(3)S 15.4(3)S

Description (partial)

ISR4400-X Ucode Crash on 15.3(3)S, 15.4(1)S, 15.4(2)S
CSR1000V Ucode Crash on 15.4(2)S

When sending a large packet over a small MTU that results in more than 8 fragments, the ucode will crash.
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.