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Cisco Bug: CSCvs61974 - vxlan: vtep does not genrate icmp packet too big for ipv6 PMTUD on egress mtu fail

Last Modified

Jan 24, 2020

Products (1)

  • Cisco Nexus 9000 Series Switches

Known Affected Releases

9.3(1) 9.3(3)

Description (partial)

Nexus9k fails to send ICMPv6 Packet Too Big (type 2) messages back to the source when the packet is larger than the egress interface MTU

IPv6 traffic that is larger than the egress interface MTU and arrives with VxLAN header
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