How to fix the problem of ping failure or communication failure over ipoib interface when ibping works (Doc ID 2162835.1)

Last updated on JULY 20, 2016

Applies to:

Sun Datacenter InfiniBand Switch 36 - Version All Versions and later
Sun Network QDR InfiniBand Gateway Switch - Version All Versions and later
Oracle Exadata Hardware - Version 11.1.0.6 and later
Sun Infiniband HCA - Version All Versions and later
Oracle Exalogic Elastic Cloud Software - Version 1.0.0.0.0 and later
Information in this document applies to any platform.

Goal

 In an infiniband network,  communication between nodes over IPoIB interfaces may fail because of several reasons.  Ping over IPoIB interface does not work whereas ibping between these two nodes using lid of the ports are working well.  ibstat output shows that IB ports are up and active.  This document provides guidelines for fixing such an issue.

Solution

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