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Cisco Bug: CSCus02131 - MDS 9250i Low FCIP performance

Last Modified

Feb 07, 2017

Products (1)

  • Cisco MDS 9000 Series Multilayer Switches

Known Affected Releases

6.2(5) 6.2(5)S68

Description (partial)

FCIP tunnels on higher latency connections are not utilizing their full TCP window size. This leads to under performing FCIP tunnels that never achieve their configured bandwidth.

Applies when all of the following are true:
 - NX-OS 6.2(5) thru 6.2(11).
 - FCIP configured on MDS 9250i platform only.
 - Latency on FCIP connection is high such that the calculated window size is greater than 2MB.
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