Unexplainable performance issues in Secure Gateway Virtual Appliance SGVA

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Article ID: 171484

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Updated On:

Products

ProxySG Software - SGOS

Issue/Introduction

When deploying a Secure Gateway Virtual Appliances, there can be an issue were clients experience slow browsing, even when CPU, Memory, amount connections and other stats are within healthy thresholds.

When looking at the System Information (Sysinfo) file, we can see something like the following:

Interface 0:0: Virtual           running with an unknown speed and duplex  (MAC 00:50:56:xx:xx:xx)

Interface 1:0: Virtual           running with an unknown speed and duplex  (MAC 00:50:56:xx:xx:xx)

Interface 2:0: Virtual           running with an unknown speed and duplex  (MAC 00:50:56:xx:xx:xx)

Interface 3:0: Virtual           running with an unknown speed and duplex  (MAC 00:50:56:xx:xx:xx)

 

Cause

Symantec provides an OVF file to deploy the SGVA virtual machine. By default, all its interfaces are using a virtual adapter called VMXNet3, however, in some cases, it may be required to change this value to another one depending on the environment.

Resolution

Change the adapter type from "VMXNet3" to "E1000". After applying this change, performance will improve and the System Information file should start displaying more accurate data such as this:

Interface 0:0: Intel Gigabit copper running at 1 Gbps full duplex (MAC 00:50:56:xx:xx:xx)

Interface 1:0: Intel Gigabit copper running at 1 Gbps full duplex (MAC 00:50:56:xx:xx:xx)

Interface 2:0: Intel Gigabit with no link  (MAC 00:50:56:xx:xx:xx)

Interface 3:0: Intel Gigabit with no link  (MAC 00:50:56:xx:xx:xx)