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Cisco Bug: CSCvv64248 - N9k- DHCP Relay DHCP OFFER broadcast loop/bounce in EVPN Fabric

Last Modified

Oct 06, 2020

Products (1)

  • Cisco Nexus 9000 Series Switches

Known Affected Releases

9.3(4) 9.3(5)

Description (partial)

DHCP offers (broadcast) may bounce back between VTEPs in VXLAN Fabric environment
MAC flaps on downstream switches as DHCP offers are reflected back towards the client

VXLAN Fabric
DHCP relay configured on SVI/Anycast GW
DHCP Server sending broadcast DHCP offers in the VLAN/SVI  with DHCP relay configured
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