Preview Tool

Cisco Bug: CSCvt85758 - Catalyst 9k may drop individual larger packets when agressive storm control values are configured

Last Modified

Jul 27, 2020

Products (1)

  • Cisco IOS

Known Affected Releases


Description (partial)

Individual packets that otherwise conform to storm-control criteria may be discarded by the switch when aggressive storm control values are used (less than 1%)

This may impact protocols like DHCP or routing protocol hellos where we expect a single large broadcast or multicast packet to be processed locally by the switch as part of normal protocol operation.

Seen on cat9k products running any software where the packet that is being discarded ingresses on an interface configured with a storm control value of less than 1%.
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.