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Cisco Bug: CSCtb40061 - Pkts recd on VLAN with IGMP sn are sent to the CPU when SVI is shut

Last Modified

Jan 29, 2017

Products (1)

  • Cisco Catalyst 4000 Series Switches

Known Affected Releases


Description (partial)

 Packets received on a VLAN with IGMP snooping enabled are sent to the CPU when
the SVI is shut
 When the SVI is administratively shut, packets received on the L2 interface
cause high CPU (99%). When IGMP snooping is disabled on the interface, CPU
drops back to normal levels.
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
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