Date: Tue, 3 Jul 2001 00:43:07 -0400 From: Bill Vermillion <bill@wjv.com> To: Bryan Fullerton <bjf@samurai.com> Cc: net@FreeBSD.ORG Subject: Re: PPPoE latency Message-ID: <20010703004307.E2458@wjv.com> In-Reply-To: <f05101003b766f52ce823@[192.168.1.34]>; from bjf@samurai.com on Tue, Jul 03, 2001 at 12:09:14AM -0400 References: <f05101003b766f52ce823@[192.168.1.34]>
next in thread | previous in thread | raw e-mail | index | archive | help
On Tue, Jul 03, 2001 at 12:09:14AM -0400, Bryan Fullerton thus sprach: > I've been wondering why the latency is higher in FreeBSD's PPPoE > implementation. From what I've seen, ping times via my gateway box > are significantly higher than what friends are seeing with dedicated > router boxes (ie Linksys) on the same DSL provider. The only way to be sure it is OS related [and I suspect it is not] is to take your machine to their location. DSL can vary in speed from location to location. > Here's what I'm seeing to the other end of my connection, no other > meaningful traffic going on: > --- 65.92.109.1 ping statistics --- > 100 packets transmitted, 100 packets received, 0% packet loss > round-trip min/avg/max/stddev = 53.982/65.063/102.373/7.478 ms > Here's a ping on my friend's machine (Mac ping, sorry for lack of precision): > Packets out/in/bad/%loss = 64/64/0/0.0 > Round Trip Time (ms) min/avg/max = 14/24/59 My BSD runs 19.447/19.874/20.255/0.322 on my DSL. Since the first link to the DSL is not your system but the box above it, I really suspect that is the problem. BTW I am NOT using PPPoE but PPoA. That link is a 512/128. I just telneted into another DSL I have - at a different location - and that is 14.881/15.613/16.369/0.547 It is the same provider - the ISP I help run. But the first link is a Sprint DSL [PPoA], and the second is BellSouth in a bridge mode. Both go to the same router - but use two different transport links. We resell their connections instead of putting in hardware at the CO. > Any thoughts? I can live with this, the connection is rock solid and > has been for over a year now, just curious as to why. Apologies if > this has come up before, I searched the list archives and the bug > list. While not using DSL for that length of time, I really don't think it is the FreeBSD. Taking your machine to your friends place is the only way to check - as only then will you be using the same routing all the way, both connecting to the same DSLAM, etcetera. BTW - my link at 512K qualifies for 3MB but that costs more, priced by speed, but the one at the office [that I telneted to and then timed going out] is running about 1MB, and the only thing guaranteed is something below 512 - perhaps 380 - but the closer you are the faster you go. Those are marketing decisions made by the respective companies. Bill -- Bill Vermillion - bv @ wjv . com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20010703004307.E2458>