DaemonForums  

Go Back   DaemonForums > OpenBSD > OpenBSD General

OpenBSD General Other questions regarding OpenBSD which do not fit in any of the categories below.

 
 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
  #1   (View Single Post)  
Old 31st October 2013
jggimi's Avatar
jggimi jggimi is offline
More noise than signal
 
Join Date: May 2008
Location: USA
Posts: 3,686
Thanked 214 Times in 189 Posts
Default test of application impact with carp(4) failover

Infrastructure

External LAN

{cable modem} - Switch - [pair of PC Engines Alix platforms]

Dynamic addressing assignment from ISP, carp(4) unavailable. Active/Standby firewall managed with ifstated(8).

Internal LAN

[Alix boxen] - Switch - [local devices]

Managed by carp(4) and ifstated(8), in Active/Standby configuration (no load balancing).

Private LAN

[Alix box] - [Alix box]

Used by pfsync(4) and dhcpd(8) sync.

System Under Test ("SUT")

My son's Win7 workstation, which was conducting both multiplayer gaming and VoIP on Valve Corporation's Steam network.

Test Methodology

On the primary, issue # ifconfig carp1 down.

Results

The applications on the SUT continued without any errors, timeouts, notifications, delays, or hiccups. My son described it as "seamless".

Analysis

It's true, pfsync(4) just works. Stateful traffic state was maintained and continued on the Standby firewall/router.

Recommendations

No longer bother to ask my son if he's using the network before conducting firewall maintenance.
Reply With Quote
 

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
OpenBSD & IP Forwarding & IP Failover VoX OpenBSD General 0 20th August 2012 04:07 PM
Trunk failover issue toxictrash OpenBSD General 5 26th September 2011 10:00 AM
Lagg failover on FreeBSD 7.0 Dell 1950/Broadcom 5708 NICs rfranzke FreeBSD General 4 14th September 2010 08:06 PM
The impact of virtualisation on securing systems J65nko News 1 12th May 2010 04:03 PM
freeBSD router running openospfd with failover using ifstated dk_netsvil Guides 0 21st May 2008 05:26 PM


All times are GMT. The time now is 09:43 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content copyright © 2007-2010, the authors
Daemon image copyright ©1988, Marshall Kirk McKusick