Network routing problems have been fixed


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Jeff Cobb
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Message 1164280 - Posted: 21 Oct 2011, 17:50:51 UTC
Last modified: 24 Oct 2011, 16:28:48 UTC

For the last few months, network routing issues have been interfering with the connectivity of some participants. The actual problem turned out to be a lack of sufficient memory in our router at the PAIX in Palo Alto. Two days ago we increased the memory in that router by a factor of four. This fixed the problem.

We would like to thank Hurricane Electric, Packet Clearing House, and CENIC for their great technical help in diagnosing and fixing this problem.
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Message 1164284 - Posted: 21 Oct 2011, 18:00:56 UTC

Just for fun, here is a picture of Eric and myself in front of the PAIX building. They would not allow any photography inside.


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Message 1164295 - Posted: 21 Oct 2011, 18:42:06 UTC

And a fine upstanding pair of gentlemen too, if I might be allowed to say so!

Well done upon solving the problem Jeff, and many thanks for the info.

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Message 1164298 - Posted: 21 Oct 2011, 18:49:48 UTC

It is great to hear this is dealt with. And as always a big thumbs up for your hard work !
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Message 1164304 - Posted: 21 Oct 2011, 19:18:55 UTC - in response to Message 1164280.

For the last few months, network routing issues have been interfering with the connectivity of some participants. The actual problem turned out to be a lack of sufficient memory in our router at the PAIX in Palo Alto. Two days ago we increased the memory in that router by a factor of four. This fixed the problem.


Outfreakingstanding, Gentlemen !

Thank you.

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Message 1164314 - Posted: 21 Oct 2011, 19:37:16 UTC

Great News...Thanks Guys!
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Message 1164322 - Posted: 21 Oct 2011, 19:53:36 UTC

Jeff and Eric, thank you both for tackling this task so quickly. Even though I'm a 3 hour drive away from you guys, I was one who suffered with those lousy connectivity issues. Its nice to be able to connect directly, and not go through a proxy. All of you at the lab have done an outstanding job at keeping things rolling, and it is greatly appreciated! Keep up the great work, hope to meet you all at the end of this month, if things go right on my end. :-)
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Message 1164378 - Posted: 21 Oct 2011, 23:08:38 UTC


Thanks Jeff and Eric for your great work.

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Message 1164462 - Posted: 22 Oct 2011, 11:02:22 UTC

Let's see. Outside, sun, marble, ornate facade, Roman Numerally looking words-yep, they Be OCCUPIERS! Grab 'em Boyz!

Hope you didn't break a fingernail putting in The Mem. hehehe.

Honestly, it is working so much better. Click, and it works. Wow. Who'd a Thunk?

Dull

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Message 1164629 - Posted: 22 Oct 2011, 22:20:21 UTC
Last modified: 22 Oct 2011, 22:21:59 UTC

Great job guys!!!

Let's hope there is some extra money at hand after the fall funding ends to replace or add some other needed hardware!!

After a year of crunching my main rig has seen the 25K rac for the first time...
Before now this didn't happen because of the network problems, and the lack of work as a result..

Thanks again from a happy seti (only) cruncher...

Regards,

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Message 1164685 - Posted: 23 Oct 2011, 4:11:25 UTC

Great Job Guys and that's a nice pic too!
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Message 1164696 - Posted: 23 Oct 2011, 5:21:44 UTC

Neither is wearing a ground strap nor a pocket protector.. I suspect the photo is a fake! ;)
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Message 1164740 - Posted: 23 Oct 2011, 11:25:44 UTC - in response to Message 1164280.
Last modified: 23 Oct 2011, 11:36:34 UTC


The problem seems fixed according to the feedback from many users.

I just wonder why this problem didn't show up earlier?

(The problem was too big list/table to hold all the IP addresses of simultaneously connecting hosts, right?
And you never changed the Keep-Alive time for the active connections?
)

Maybe the problem is/was Not too many hosts per se but too many fast/hungry hosts more often asking for work?
(Using a Proxy helped in this situation - if 1000 hosts "wear" the same Proxy (= use the same external IP as seen from the servers/router) only one IP entry needed in the table and not 1000)


According to the Graphs the Max number of Active Users and Active Hosts
was around Feb 2010:
http://bluenorthernsoftware.com/scarecrow/sahstats/activeusers/








(somebody have explanation for this square peak?)


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- ALF - "Find out what you don't do well ..... then don't do it!" :)

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Message 1164790 - Posted: 23 Oct 2011, 17:14:22 UTC - in response to Message 1164740.

(somebody have explanation for this square peak?)

IPv6?

Gruß,
Gundolf

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Message 1164858 - Posted: 24 Oct 2011, 1:03:40 UTC - in response to Message 1164740.

World IPv6 day was 8 June which is near the time the square pulse occurred.
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Message 1164888 - Posted: 24 Oct 2011, 2:21:32 UTC - in response to Message 1164790.

(somebody have explanation for this square peak?)

IPv6?

Gruß,
Gundolf


We all know of the `WOW` signal, all those years ago.
This was the `O SH**` signal :-)

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Message 1164997 - Posted: 24 Oct 2011, 11:06:27 UTC

Let's get crunching aqain.

gr

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Message 1165007 - Posted: 24 Oct 2011, 12:24:41 UTC

I second the motion - thanks guys for the fix!
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Message 1165044 - Posted: 24 Oct 2011, 15:56:18 UTC

Cache filled since days, all working, thx guxs! :)
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Message boards : News : Network routing problems have been fixed

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