Re: speakeasy connectivity

2009-03-17 Thread A MacLeod
Our speakeasy t1 in palo alto was out for approx. 40 minutes. Service is back as of now. Andrew MacLeod Network Operations Manager Etheric Networks 877.541.3905 Sent from my iPhone On Mar 17, 2009, at 18:43, Dan Snyder wrote: I currently have partial connectivity to the Internet through s

Re: speakeasy connectivity

2009-03-17 Thread Dan Snyder
I currently have partial connectivity to the Internet through speakeasy. Sent from my iPhone On Mar 17, 2009, at 9:38 PM, John Martinez wrote: Anyone having issues with speakeasy dsl connectivity?

Re: speakeasy connectivity

2009-03-17 Thread Patrick W. Gilmore
On Mar 17, 2009, at 9:38 PM, John Martinez wrote: Anyone having issues with speakeasy dsl connectivity? Supposedly they're having a national outage. -- TTFN, patrick

speakeasy connectivity

2009-03-17 Thread John Martinez
Anyone having issues with speakeasy dsl connectivity?

Re: help with connectivity check?

2009-03-17 Thread Azher Mughal
https://mgmt.hep.caltech.edu/routeproxy Jason Lewis wrote: > This brings up something I've been thinking about. Are there any free > services that let you submit an IP and get traces back from multiple > geographic locations? > > There are plenty of internet measurement projects, but none of the

Re: help with connectivity check?

2009-03-17 Thread Jeremy L. Gaddis
On Tue, Mar 17, 2009 at 8:49 PM, Jason Lewis wrote: > This brings up something I've been thinking about.  Are there any free > services that let you submit an IP and get traces back from multiple > geographic locations? > > There are plenty of internet measurement projects, but none of them seem >

Re: help with connectivity check?

2009-03-17 Thread Jason Lewis
This brings up something I've been thinking about. Are there any free services that let you submit an IP and get traces back from multiple geographic locations? There are plenty of internet measurement projects, but none of them seem to let you do a live trace and get the data back in a parseable

Re: help with connectivity check?

2009-03-17 Thread Edward B. DREGER
EBD> Date: Wed, 18 Mar 2009 00:13:48 + (GMT) EBD> From: Edward B. DREGER Many thanks to all who have responded. I think/hope I have enough information now! Eddy -- Everquick Internet - http://www.everquick.net/ A division of Brotsman & Dreger, Inc. - http://www.brotsman.com/ Bandwidth, cons

help with connectivity check?

2009-03-17 Thread Edward B. DREGER
Please keep responses off-list to minimize clutter. Can anyone try ping/traceroute 204.10.190.1? DNS queries against same? Please let me know off-list if this FAILS, and what path you follow / how far you get. Many TIA, Eddy -- Everquick Internet - http://www.everquick.net/ A division of Brots

Re: Shady areas of TCP window autotuning?

2009-03-17 Thread Lars Eggert
On 2009-3-17, at 12:10, Tony Finch wrote: On Tue, 17 Mar 2009, Joe Maimon wrote: TCP needs drops to manage to the right speed. This is whats bad. TCP should be slightly more intelligent and start considering rtt jitter as its primary source of congestion information. TCP Vegas did this b

Re: Leap second tonight

2009-03-17 Thread Kevin Oberman
> From: Deepak Jain > Date: Tue, 17 Mar 2009 15:54:28 -0400 > > > > > As long as the end-user is made aware that the accuracy of said NTP > > clock > > is +/- 30.000 seconds (or whatever jitter might exist). Seems kind > > of > > ridiculous to use an NTP source that is, for many purposes,

Myspace NOC contact me please

2009-03-17 Thread Leslie
I have already tried calling +1-310-215-1001 which is not in service as well as emailing peer...@myspace.com and n...@myspace.com and checking peeringdb.com for any other contact info. Thanks Leslie Carr Craigslist also at 415/566-6394 x140

ADMIN: List FAQ/Monthly Post.

2009-03-17 Thread NANOG Mail List Committee
This 100-line document contains 62% of what you need to know to avoid annoying 10,000 people in your email to the NANOG list. It also contains pointers to another 23%. Please take 5 minutes to read it before you post [again]. General Information === About NANOG:http://

RE: Leap second tonight

2009-03-17 Thread Deepak Jain
> > As long as the end-user is made aware that the accuracy of said NTP > clock > is +/- 30.000 seconds (or whatever jitter might exist). Seems kind > of > ridiculous to use an NTP source that is, for many purposes, wildly > inaccurate. For my purposes, wildly is more than +/- 0.1 second

Re: Shady areas of TCP window autotuning?

2009-03-17 Thread Tony Finch
On Tue, 17 Mar 2009, Joe Maimon wrote: > > > TCP needs drops to manage to the right speed. > > This is whats bad. TCP should be slightly more intelligent and start > considering rtt jitter as its primary source of congestion information. TCP Vegas did this but sadly it never became popular. (It do

Re: Leap second tonight

2009-03-17 Thread Peter Beckman
On Tue, 17 Mar 2009, valdis.kletni...@vt.edu wrote: They may suck for being a Stratum-1/2 server, but even the most jittery Cisco is still far and away good enough to serve up a ntpdate so that an end-user PC-class machine is in the right minute. As long as the end-user is made aware that the

Re: Leap second tonight

2009-03-17 Thread Valdis . Kletnieks
On Tue, 17 Mar 2009 08:06:51 PDT, Kevin Oberman said: > Routers as ntp servers. Yuck! Routers route well, but they treat time as > a low priority job and jitter on Cisco routers is simply terrible. > Junipers do better, but are still a poor time server. They may suck for being a Stratum-1/2 serve

Re: Shady areas of TCP window autotuning?

2009-03-17 Thread John Schnizlein
Or use a transmission-layer protocol that optimizes delay end-to-end. http://tools.ietf.org/html/draft-shalunov-ledbat-congestion-00 On 2009Mar17, at 12:47 PM, Joe Maimon wrote: Leo Bicknell wrote: TCP needs drops to manage to the right speed. This is whats bad. TCP should be slightly more

Re: Shady areas of TCP window autotuning?

2009-03-17 Thread Joe Maimon
Leo Bicknell wrote: As network operators we have to get out of the mind set that "packet drops are bad". They are bad. TCP needs drops to manage to the right speed. This is whats bad. TCP should be slightly more intelligent and start considering rtt jitter as its primary source of con

Re: Redundant AS's

2009-03-17 Thread tvest
On Mar 17, 2009, at 11:47 AM, Simon Brilus wrote: Out of interest, is there a report that details the number of unused older AS's in the Internet and what is being done to recover them to recycle, as we approach the 53k mark and the 32 bit numbering scheme, it strikes me that we probably h

Redundant AS's

2009-03-17 Thread Simon Brilus
Out of interest, is there a report that details the number of unused older AS's in the Internet and what is being done to recover them to recycle, as we approach the 53k mark and the 32 bit numbering scheme, it strikes me that we probably have a lot of stagnant AS's out there due to takeovers et

Re: Shady areas of TCP window autotuning?

2009-03-17 Thread Leo Bicknell
In a message written on Tue, Mar 17, 2009 at 08:46:50AM +0100, Mikael Abrahamsson wrote: > In my mind, the problem is that they tend to use FIFO, not that the queues > are too large. We could quickly get lost in queuing science, but at a high level you are most correct that both are a problem.

Re: Leap second tonight

2009-03-17 Thread Kevin Oberman
> From: =?ISO-8859-1?Q?Ask_Bj=F8rn_Hansen?= > Date: Mon, 16 Mar 2009 23:07:42 -0700 > > > On Dec 31, 2008, at 15:28, Kevin Oberman wrote: > > > We use CDMA clocks and last leap second it took weeks for all of the > > cell sites to adjust the last one. As a result, I have set all of our > > cloc

Re: Shady areas of TCP window autotuning?

2009-03-17 Thread Brett Frankenberger
On Mon, Mar 16, 2009 at 10:48:42PM -0500, Frank Bulk - iName.com wrote: > It was my understanding that (most) cable modems are L2 devices -- how it is > that they have a buffer, other than what the network processor needs to > switch it? The Ethernet is typically faster than the upstream cable cha

Re: Leap second tonight

2009-03-17 Thread jamie rishaw
On Tue, Mar 17, 2009 at 1:07 AM, Ask Bjørn Hansen wrote: > > On Dec 31, 2008, at 15:28, Kevin Oberman wrote: > > We use CDMA clocks and last leap second it took weeks for all of the >> cell sites to adjust the last one. As a result, I have set all of our >> clocks for manual leap second and set t

Re: Shady areas of TCP window autotuning?

2009-03-17 Thread Marian Ďurkovič
On Mon, Mar 16, 2009 at 09:09:35AM -0500, Leo Bicknell wrote: > Many edge devices have queues that are way too large. > > What appears to happen is vendors don't auto-size queues. Something > like a cable or DSL modem may be designed for a maximum speed of > 10Mbps, and the vendor sizes the queue

Re: Shady areas of TCP window autotuning?

2009-03-17 Thread Florian Weimer
* Marian Ďurkovič: >TCP window autotuning is part of several OSs today. However, the actual > implementations behind this buzzword differ significantly and might impose > negative side-effects to our networks - which I'd like to discuss here. > There seem to be two basic approaches which diffe

Re: Shady areas of TCP window autotuning?

2009-03-17 Thread Mikael Abrahamsson
On Mon, 16 Mar 2009, Leo Bicknell wrote: What appears to happen is vendors don't auto-size queues. Something In my mind, the problem is that they tend to use FIFO, not that the queues are too large. This is most likely due to the enormous price competition in the market, where you might l