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Seti-news! Seti gets now all of Berkeley's excess bandwith!

Rattledagger

Elite Member
From http://setiathome.ssl.berkeley.edu/tech_news.html



<< January 25, 2002

Users may find their connections to the server slow during peak hours. Some may even see a connection refusal. This is due to a bandwidth limit between UC Berkeley and the Internet. The aggregate Internet usage over the entire campus has recently hit this limit. UC Berkeley's Communication and Network Services has been extremely helpful in working with us on this issue. The goal is for SETI@home users to get as good a data rate as possible while at the same time not adversely affecting the rest of campus. The current (new) policy is for SETI@home to get all excess capacity in outbound bandwidth (inbound is not an issue). This is being done by placing our traffic at a lower priority than that of other users, but applying no rate limit other than the campus wide cap. Placing us at a lower priority is necessary so that interactive Internet users do not experience painfully high latency. This policy translates into enormous capacity at (local) night, but a tight squeeze during peak hours. Thus far this policy is working better than expected even though there may be periods of poor service. Please bear with us as we work towards a sustainable long term solution
>>



This will say, if possible, fill your caches between 08:00 and 16:00 GMT. (0 to 8 berkeley-time)
 
No wonder the internet's faster here (I'm a student at Berkeley). All you WU-leechers are off my network! 😛

Seriously though, I hope this alleviates all the problems and gets things sorted out. The worst network performance around here is from roughly 4PM to 2AM PST, so avoid dumping during that time.
 
SetiDriver looks better and better. It seems that bumping the cache up another day or so would be prudent. Let's hope the time squeeze of Seti use into off-hours doesn't create a Seti-only bottleneck then.
 
Adjusted my dumping time to 3-5am PST and my cache to a max of 7 days and min of 4. Hope these setting wok pretty good now.
 


<< SetiDriver looks better and better. It seems that bumping the cache up another day or so would be prudent. Let's hope the time squeeze of Seti use into off-hours doesn't create a Seti-only bottleneck then. >>



I know what you mean. I had just started running SETI and had tried setting up SETIQ/SETIDRIVER but was having problems, and before I got it setup, WHAM! Construction crews cut the communication cables at Berkeley, and the servers were down for about a week. PLUS I was having problems with the firewall, and couldn't connect to another SETIQ. After having the PCs sit idle for that long, I got SETIDRIVER working, and eventually the firewall setup was changed, and I got SETIQ up as soon as I could.

Now I can weather a fairly long outage. 😀
 
Logix, since it's your network, why have you only a little 100Mbits to the outside world? 🙂
Why not move one of the 1Gbits to do the job instead... 🙂

More seriously, I'll guess you from inside Berkeley has no problem pulling down some wu...
 
Hehe, I wish it could be so. 🙂

And it's true, I can download WU's in about 2-3 seconds, but I still go through OK's proxy, which makes it a little slower. The TeAm stats load pretty quickly though! 😀
 
I'm curious..where does SETI's bandwidth throttling take place? At the server, or at the connection to the big pipe? IE, is someone like Logix that's on the Berkeley LAN going to have full bandwidth to the SETI servers all times of day? If so, maybe you should consider running a huge SETIQ to get around SETI's bandwidth throttle. 😉
 
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