RE: [pfSense Support] CARP - failover inconsistencies

[Alastair Stevens]

Title: RE: [pfSense Support] CARP - failover inconsistencies

Hi Tom - thanks for this.  I've updated my advertising frequencies, such that all interfaces on "master" are 0, and all interfaces on "backup" are 111, arbitrarily.

But it's still not behaving correctly.  Could this be to do with VHID groups?  At the moment, each pair of interfaces shares a VHID group, in other words I have 4 different VHID groups, for the 4 pairs of interfaces.  Is this the wrong way to do it?  I have experimented with this before but not achieved consistent results.

Cheers
Alastair

-----Original Message-----
From: Tom Müller-Kortkamp [mailto:[EMAIL PROTECTED]]
Sent: Thu 13/07/2006 07:30
To: support@pfsense.com
Subject: Re: [pfSense Support] CARP - failover inconsistencies

Am 12.07.2006 um 14:28 schrieb Alastair Stevens:
> But do you know why we are seeing this asymmetric 'flapping' at 
> other times?  I have checked all the settings, and each CARP pair 
> has a unique VHID, and box A is set to a lower advertising 
> frequency.  My understanding is that the 'preempt' flag should 
> cause all interfaces to failover together.


Hi,

had the same problem with a fast Master and a WRAP for backup:

Go to the Slave-Servers CARP-Settings and rise the Advertising 
Frequency for each CARP-Interface above 100. This should make it a 
real "hot-standby" Slave ...
I also enabled "Load Balancing" in the CARP Settings which should 
enable net.inet.carp.arpbalance.

Tom
--
kommunity GmbH & Co.KG
Tom Müller-Kortkamp
Netzwerke & Internet
Goseriede 4
D-30159 Hannover