Preview Tool

Cisco Bug: CSCvt20753 - ping not working if packet size more then non default MTU

Last Modified

May 07, 2020

Products (1)

  • Cisco ASR 9000 Series Aggregation Services Routers

Known Affected Releases


Description (partial)


Control packets greater than 9960 may be dropped. 
For example, an ICMP packet of size 9960 or greater may be dropped.

Control packets larger than 9960 may be dropped when an MTU of size greater than 9960 up to 10000 is configured on an 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.