Date: Mon, 5 Aug 2002 16:48:11 -0600 (CST) From: Ryan Thompson <ryan@sasknow.com> To: Max <max@ecotech.com.lr> Cc: freebsd-isp@FreeBSD.ORG Subject: Re: Latency Message-ID: <20020805163516.G99260-100000@ren.sasknow.com> In-Reply-To: <001a01c23c92$05e12c50$04ef10ac@wireless>
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Max wrote to freebsd-isp@FreeBSD.ORG: > Hi, > > I have a bandwidth manager between my router and switch. It's a > 800Mhz P3 with 256M RAM. However, i am experiencing some latency > when pinging the router. I see as much as time=28.317 ms to the > router while other machine give time=0.196 ms typically. How do i > work around this to remove the latency effect or reduce it. I don't think you've given nearly enough detail for anyone to answer your question. So, I'll answer with more questions. :-) I don't understand what is pinging what across what. An ASCII diagram of your network and a bit more description would help. First, what does this have to do with ISP-related FreeBSD discussions? (I'm not trying to be an ass. Knowing the answer to that would probably help answer your question). What do traceroutes between the affected machines show? Is it possible that your 28ms pings are going through your uplink? This is possible in some situations. "Bandwidth manager"? Would I be correct to presume that is a FreeBSD box using traffic shaping? (Again, more explanation is needed). Perhaps you've added a rule which inadvertantly adds latency (or reduces bandwidth, which also adds latency). Try reverting to an open ruleset to see if the problem disappears. If it does, your ruleset is at fault, and you should fix it, or perhaps post it to the list for a few suggestions. - Ryan -- Ryan Thompson <ryan@sasknow.com> SaskNow Technologies - http://www.sasknow.com 901 1st Avenue North - Saskatoon, SK - S7K 1Y4 Tel: 306-664-3600 Fax: 306-244-7037 Saskatoon Toll-Free: 877-727-5669 (877-SASKNOW) North America To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message
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