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Author Topic: CARP strange bandwidth problem  (Read 1125 times)

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Offline miloman

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CARP strange bandwidth problem
« on: October 03, 2011, 09:49:52 am »
Hi,

I have a "problem" with my pfsense when i'm using CARP.

Let me summon it up:

physical server dell r610 running vmware esxi 5.0, with a vmware pfsense on top.

My setup:
PfSense
OPT1: 192.168.1.1
OPT2: 192.168.2.1

Servers:
Server A: 192.168.1.10, gateway 192.168.1.1
Server B: 192.168.2.20, gateway 192.168.2.1

when i transfer a file from server A to server B i get full usage of my 1gbit link in my HP switch.

When i enable carp on OPT1 so the conf looks like this:
OPT1: 192.168.1.254 // VIP 192.168.1.1
OPT2: 192.168.2.1

Then i only get half the performance (470mbit). Is this expected behaviour? If i change the gateway on the server A to 192.168.1.254 the transfer rate increases to 1gbit...

I've just attached a screenshot of the interface graph in the switch...
« Last Edit: October 03, 2011, 10:31:48 am by miloman »

Offline miloman

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Re: CARP strange bandwidth problem
« Reply #1 on: October 03, 2011, 10:49:11 am »
I've just noticed that if i change the VIP in PfSense from CARP to IP Alias, then the problem disappears.

Any thoughts?