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Cisco Bug: CSCul90052 - Need to reduce severity of FRAME_LENGTH_ERROR and print source IP

Last Modified

Mar 09, 2018

Products (1)

  • Cisco MDS 9000 NX-OS and SAN-OS Software

Known Affected Releases

6.1(4)

Description (partial)

Symptom:
The following syslog is seen

NETSTACK-3-FRAME_LENGTH_SHORT   netstack   Frame length: <length> less than IPv6 payload
length: <length> for packet received on interface <interface-name>

Conditions:
When netstack receives a packets where the frame length is lesser than the ipv6 payload length this syslog messages is printed, and the packet is dropped. The issue is at the source, where the source is sending such short frames. Using SPAN, one can try to track such packets
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