Multi WAN switching connections even though packet loss thresholds not met
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I've got a 3-WAN environment doing purely failover. We have a 2mbps DSL line, a 2mbps 3G connection, and a 128kbps VSAT backup. Since the 3G is not unlimited bandwidth, this setup is in 3 tiers, failover only.
The problem is that the DSL line isn't all that fantastic - it's got high latency sometimes and packet loss. To avoid the 3G connection from kicking in too often, I set the latency high water marks on the DSL to be 1200-1500ms and the packet loss to be 40-50%.
Even with these relatively high packet loss thresholds, the gateway statuses still give warnings (and subsequently remove the gateway from the routing group) at 20%!
Looking in the auto-generated /var/etc/apinger.conf, the
alarm loss "loss" {
percent_low 10
percent_high 20
}parameters clearly are not reflecting what I set. In each parameter set for my gateways, only the latency settings are there. Is this a bug? Is there somehow I can change this?
Thanks,
quad
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I'm quite sure I solved the problem -
It's an error in /etc/inc/gwlb.inc on line 163. It currently reads:
if (!empty($gateway['lowloss'])) {$gateway['lowloss'] does not exist in the config file, it is called $gateway['losslow'] as evidenced further down on line 165.
I've corrected this on my own platform and line 163 is now:
if (!empty($gateway['losslow'])) {Things are now working properly.
I will submit this to be corrected in a new release.
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Quickest way would be to make the change on a local copy at github, and then do a pull request:
https://github.com/bsdperimeter/pfsense/commits/master