[52534] in North American Network Operators' Group
Re: UUNET Routing issues
daemon@ATHENA.MIT.EDU (Jared Mauch)
Thu Oct 3 17:46:54 2002
Date: Thu, 3 Oct 2002 17:44:58 -0400
From: Jared Mauch <jared@puck.Nether.net>
To: Marshall Eubanks <tme@multicasttech.com>
Cc: Vinny Abello <vinny@tellurian.com>,
Matt Levine <matt@deliver3.com>, Chris Adams <cmadams@hiwaay.net>,
nanog@merit.edu
In-Reply-To: <3D9CB791.4030402@multicasttech.com>
Errors-To: owner-nanog-outgoing@merit.edu
The Juniper routers (it appears they are based on
the interface naming scheme) tend to have incredible buffering capabilities
as compared to the predecasors of the time. This allows a full link
to not drop packets and fully buffer them over a period of time.
This obviously has ramifications when it relates to tcp timing
and when you go from having a 20ms rtt for a packet to 1000+ms. tcp
obviously will think that there is some loss.
- Jared
On Thu, Oct 03, 2002 at 05:33:05PM -0400, Marshall Eubanks wrote:
>
> Where are they diverting it to, the Moon (1.5 light seconds away) ?
>
> Really - I have seen some multisecond latencies on network links we were
> testing, and I always wondered how these could come to be.
>
>
> --
> Regards
> Marshall Eubanks
>
>
>
> Vinny Abello wrote:
>
> >
> >The only thing I've noticed is high latency between UUNet and Sprint
> >(around 2 second latency) in at least one traffic exchange point between
> >them, maybe more. Probably because of the diversion of traffic on
> >UUNet's network.
> >
> >At 04:30 PM 10/3/2002 -0400, Matt Levine wrote:
> >
> >
> >>On Thursday, October 3, 2002, at 04:07 PM, Chris Adams wrote:
> >>
> >>>
> >>>Once upon a time, sigma@smx.pair.com <sigma@smx.pair.com> said:
> >>>
> >>>>There still seem to be problems. Earlier today CHI->ATL was 2000ms.
> >>>>Now
> >>>>it's improved to 1000ms.
> >>>>
> >>>> 9 0.so-5-0-0.XL2.CHI13.ALTER.NET (152.63.73.21) 24.466 ms 24.311
> >>>>ms 24.382 ms
> >>>>10 0.so-0-0-0.TL2.CHI2.ALTER.NET (152.63.68.89) 24.467 ms 24.349
> >>>>ms 24.454 ms
> >>>>11 0.so-3-0-0.TL2.ATL5.ALTER.NET (152.63.101.50) 1029.484 ms
> >>>>1049.529 ms 1063.692 ms
> >>>>12 0.so-7-0-0.XL4.ATL5.ALTER.NET (152.63.85.194) 1106.067 ms
> >>>>1118.102 ms 1132.124 ms
> >>>
> >>>
> >>>We're a UUNet customer (we also have other connections), and we haven't
> >>>really seen any big problem today. We're connected to Atlanta, and I
> >>>see:
> >>><snip>
> >>
> >>
> >>We haven't seen anything unusual on our UU circuit in PHX, either.
> >>
> >>
> >>>--
> >>>Chris Adams <cmadams@hiwaay.net>
> >>>Systems and Network Administrator - HiWAAY Internet Services
> >>>I don't speak for anybody but myself - that's enough trouble.
> >>
> >>--
> >>Matt Levine
> >>@Home: matt@deliver3.com
> >>@Work: matt@eldosales.com
> >>ICQ : 17080004
> >>AIM : exile
> >>GPG : http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x6C0D04CF
> >>"The Trouble with doing anything right the first time is that nobody
> >>appreciates how difficult it was." -BIX
> >
> >
> >
> >Vinny Abello
> >Network Engineer
> >Server Management
> >vinny@tellurian.com
> >(973)300-9211 x 125
> >(973)940-6125 (Direct)
> >PGP Key Fingerprint: 3BC5 9A48 FC78 03D3 82E0 E935 5325 FBCB 0100 977A
> >
> >Tellurian Networks - The Ultimate Internet Connection
> >http://www.tellurian.com (888)TELLURIAN
> >
>
>
>
> T.M. Eubanks
> Multicast Technologies, Inc
> 10301 Democracy Lane, Suite 410
> Fairfax, Virginia 22030
> Phone : 703-293-9624 Fax : 703-293-9609
> e-mail : tme@multicasttech.com
> http://www.multicasttech.com
>
> Test your network for multicast :
> http://www.multicasttech.com/mt/
> Status of Multicast on the Web :
> http://www.multicasttech.com/status/index.html
--
Jared Mauch | pgp key available via finger from jared@puck.nether.net
clue++; | http://puck.nether.net/~jared/ My statements are only mine.
