Hi, I was stumbling around the sourcemod.net site and found a link here through the website listed for SaintK in the donator's Hall of Fame. I noticed on your front page that you managed to get your service provider to track down some lag spikes that were occurring on your servers. I'm a member of a clan that has a dedicated server through a GSP, and TCAdmin reports that we experience these same issues every so many hours. Our event log (win2k3) reports that the WinHTTP service experiences problems at times that correspond to the times that TCAdmin reports that our network utilization drops to 0.

I'd like to know if your service provider explained what was happening, and if you'd be interested in helping us out by letting me know how your service provider fixed the issues you were experiencing.

Also, if a forum moderator reads this, is there any way someone could fix my login name? I typoed my username when registering.

It's supposed to be: Inflatable Soulmate

Thanks!

Inflatable Soulmate
Server Operations Manager
Brothers of Chaos Multi-Gaming Community

Hi,

For your nickname, send me a PM with the correct login and i'll sort it out.

For the lagspikes; The network had been under DDoS attacks quite much so they implemented some network filters. One of these filters caused a problem as it periodicly cleared the routers ARP table so it would have a high load and needs to re-arp everything. This in combination with a other user in the same VLAN using 255.0.0.0 as subnet mask and thus arping like an idiot caused the problems.

We have written several tools to be able to show them that there was a problem in the network. Unfortunatly for you these are all made for Linux systems. You'll have to find something that runs in windows and can do the same. You could try perfmon and setting something like 24h testing, report every minute, and a stream of 64kbyte/sec.

Oh by the way, if the lag problems occure exactly at the same time as WinHTTP reports a problem, then it would sound to me that WinHTTP is giving some issue's. Try to disable it and see if your problems are gone.

I believe the WinHTTP problems are a symptom of the network problems. WinHTTP is a service that goes out and tries to discover proxy settings automatically. You all don't happen to be using nuclearfallout as a GSP, do you?

Hi,

No we don't, we have our own hardware in a datacenter in Amsterdam. If you think its a network issue, then give netperf a shot.