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Cisco Bug: CSCvs07119 - IGMP report being looped on VXLAN vPC

Last Modified

Jun 19, 2020

Products (52)

  • Cisco Nexus 9000 Series Switches
  • Cisco Nexus 3548-X Switch
  • Cisco Nexus 3548 Switch
  • Cisco Nexus 9516 Switch
  • Cisco Nexus 3064 Switch
  • Cisco Nexus 9396PX Switch
  • Cisco Nexus 3132Q-V Switch
  • Cisco Nexus 92304QC Switch
  • Cisco Nexus 9396TX Switch
  • Cisco Nexus 31108TC-V Switch
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Known Affected Releases

7.0(3)I7(6) 7.0(3)I7(7)

Description (partial)

Symptom:
- Customer seeing MAC flaps for end hosts in VXLAN multifabric deployment when the VLAN is extended on the L2 DCI and IGMPv3 packets are sent by the host towards the fabric.

- IGMP General Query packet is retransmitted back to uplink switch, caused igmp query loop.

Conditions:
-N9K configured with 7.0.3.I7.6 or 7.0.3.I7.7 code.
-VXLAN EVPN with multifabric configured
-IGMP (v2 or v3) traffic sent by the host which is seeng MAC flap

Related Community Discussions

<key>CSCvs07119</key> - N9K IGMPv3 report being looped on VXLAN VPC
Is there a target date when Fixed Versions 7.0(3)I7(8) and 7.0(3)I7(7.35) will be posted on Cisco download site?
Latest activity: Jan 08, 2020
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
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  • Related Community Discussions
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