Network Performance Issue between Two Windows VMs Running on Two different OVM Servers

(Doc ID 1616088.1)

Last updated on MAY 17, 2016

Applies to:

Oracle VM - Version 3.2.1 and later
Oracle Database - Enterprise Edition - Version 11.2.0.3 to 11.2.0.3 [Release 11.2]
Linux x86-64
Linux x86

Symptoms

The network communication between two Windows VMs running on two different OVM Servers is very slow - about 100KB/sec. Copying files between the two VMs on the same OVM Server performs at 25MB/sec. Also copying files from other machines which are not in this OVM environment is also fast - about 17MB/s.

Cause

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