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Cisco Bug: CSCuj55254 - CSR MaxTu Drops w/ Intra-host Traffic - was CSR low OTV throughput

Last Modified

Aug 07, 2014

Products (1)

  • Cisco Cloud Services Router 1000V Series

Known Affected Releases

15.3(3)S

Description (partial)

Symptom:
The CSR shows drops with a drop cause of MaxTu while receiving traffic that originated on the same VMware host when the sending VM has TSO enabled and is sending packets larger than the CSR MTU.

Conditions:
CSR on VMware 5.1 using switched traffic via VMXNET3
Originator of traffic is on the same host
Originating VM has TSO enabled
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