Re: Eye protection in DWDM systems -- what threshold?

2009-06-09 Thread David Freedman
I forget who the vendor is now, but their shelves are sealed with a door which, when opened, turns off all the lasers on the shelf so you can work on it, yes, a simple provisioning operation causes an outage / protection switchover!! Dave. Deepak Jain wrote: > At what power level do DWDM systems

Re: Eye protection in DWDM systems -- what threshold?

2009-06-09 Thread Robert E. Seastrom
Deepak Jain writes: > Any pointers to a document saying 1550nm becomes dangerous at dbM? Even -30 dBM would be pretty dangerous. You sure you don't mean dBm? ;-) -r

Re: Eye protection in DWDM systems -- what threshold?

2009-06-09 Thread Jeff Kell
Reminds me of the old warning/attention sign over a termination rack... WARNING: Do not look into laser with remaining eye. Jeff

Re: Eye protection in DWDM systems -- what threshold?

2009-06-09 Thread Patrick W. Gilmore
On Jun 9, 2009, at 12:43 PM, Jeff Kell wrote: Reminds me of the old warning/attention sign over a termination rack... WARNING: Do not look into laser with remaining eye. It will be the last thing you never saw. -- TTFN, patrick

Re: Eye protection in DWDM systems -- what threshold?

2009-06-09 Thread Richard A Steenbergen
On Tue, Jun 09, 2009 at 12:43:09PM -0400, Jeff Kell wrote: > Reminds me of the old warning/attention sign over a termination rack... > >WARNING: Do not look into laser with remaining eye. The only problem with those funny signs is they scare remote hands techs into never looking at a fiber

End User Internet Monitoring for Supervisor recommendations

2009-06-09 Thread JoeSox
I have a friend in a shop that is not running any robust Websense like applications. They are looking for a freeware solution or possibly inexpensive solution just for a few requests not for the entire company. I used one a while back but I since have lost the information and that PC that I droppe

Re: End User Internet Monitoring for Supervisor recommendations

2009-06-09 Thread Brian Raaen
Our Company has been doing some testing with Linux Untangled servers. http://www.untangle.com/ JoeSox wrote: > I have a friend in a shop that is not running any robust Websense like > applications. They are looking for a freeware solution or possibly > inexpensive solution just for a few requests

Re: Eye protection in DWDM systems -- what threshold?

2009-06-09 Thread Patrick W. Gilmore
On Jun 9, 2009, at 2:06 PM, Richard A Steenbergen wrote: On Tue, Jun 09, 2009 at 12:43:09PM -0400, Jeff Kell wrote: Reminds me of the old warning/attention sign over a termination rack... WARNING: Do not look into laser with remaining eye. The only problem with those funny signs is they s

Re: End User Internet Monitoring for Supervisor recommendations

2009-06-09 Thread Jay Nugent
Greetings, On Tue, 9 Jun 2009, Brian Raaen wrote: > Our Company has been doing some testing with Linux Untangled servers. > http://www.untangle.com/ > > JoeSox wrote: > > I have a friend in a shop that is not running any robust Websense like > > applications. They are looking for a freeware sol

Re: Eye protection in DWDM systems -- what threshold?

2009-06-09 Thread Leo Bicknell
In a message written on Tue, Jun 09, 2009 at 01:06:42PM -0500, Richard A Steenbergen wrote: > The only problem with those funny signs is they scare remote hands techs > into never looking at a fiber because they don't want to try and > understand the difference between a SX GBIC and a class 3 ul

Traceroute management

2009-06-09 Thread Dylan Ebner
My company uses it's internet connection primarily for VPN tunneling. I have always wanted a tool that I can enter the peer ip addresses and it will every 8 or 12 hours run a traceroute and log it so I can build historical maps of the path our traffic is taking. Has anyone ever seen any apps like t

RE: Traceroute management

2009-06-09 Thread Scott Berkman
Try SmokePing (which includes SmokeTrace now): http://oss.oetiker.ch/smokeping/ You could also just use a cronjob and output the results to a flat file or database if you prefer something home grown. -Scott -Original Message- From: Dylan Ebner [mailto:dylan.eb...@crlmed.com] Sen

RE: Traceroute management

2009-06-09 Thread Mishka, Jason
BGPlay might be what you are looking for. I believe you can replay certain time periods. http://bgplay.routeviews.org/bgplay/ Jason > -Original Message- > From: Scott Berkman [mailto:sc...@sberkman.net] > Sent: Tuesday, June 09, 2009 3:45 PM > To: 'Dylan Ebner'; nanog@nanog.org > Subjec

Re: Eye protection in DWDM systems -- what threshold?

2009-06-09 Thread Deepak Jain
Leo Bicknell wrote: In a message written on Tue, Jun 09, 2009 at 01:06:42PM -0500, Richard A Steenbergen wrote: The only problem with those funny signs is they scare remote hands techs into never looking at a fiber because they don't want to try and understand the difference between a SX GBI

Re: Traceroute management

2009-06-09 Thread Arie Vayner
Hmm, take a look at pingplotter Arie On Tue, Jun 9, 2009 at 10:28 PM, Dylan Ebner wrote: > My company uses it's internet connection primarily for VPN tunneling. I > have always wanted a tool that I can enter the peer ip addresses and it > will every 8 or 12 hours run a traceroute and log it so

RE: Multi site BGP Routing design

2009-06-09 Thread Ivan Pepelnjak
> I am thinking the multiple ASN route is the cleanest but the > idea of letting a default gateway (via static route maybe) > out the local upstream connection to reach the other site > when the backnet link is down sounds like it would work with > minimal to no headaches but it just some how s

Re: Eye protection in DWDM systems -- what threshold?

2009-06-09 Thread Richard A Steenbergen
On Tue, Jun 09, 2009 at 04:06:58PM -0400, Deepak Jain wrote: > > This conversation has gone places I didn't expect. Leo, that card is > pretty cool, but for a few hundred $$ more, you can get a light meter > (if someone is smart enough to use the card...) Now if only you could train people to u

Re: Traceroute management

2009-06-09 Thread Elmar K. Bins
arievay...@gmail.com (Arie Vayner) wrote: > Hmm, take a look at pingplotter From what I understand, Dylan is interested in something that archives traceroutes and compares them to former versions. The only tool I know that does this is something Gert Döring (g...@space.net) hacked a couple of ye

Re: Eye protection in DWDM systems -- what threshold?

2009-06-09 Thread Joel Jaeggli
Deepak Jain wrote: > Does anyone *use* any eye protection (other that not looking at the > light, turning off the light etc) -- I mean like protective goggles, > etc, when doing simple things like adding/removing patch cables from an > SMF patch panel. There are osha requirements and ansi stand

Re: Eye protection in DWDM systems -- what threshold?

2009-06-09 Thread Kevin Loch
On Tue, Jun 09, 2009 at 04:06:58PM -0400, Deepak Jain wrote: This conversation has gone places I didn't expect. Leo, that card is pretty cool, but for a few hundred $$ more, you can get a light meter (if someone is smart enough to use the card...) In a pinch the camera on a MacBook pro can be

ICSI Netalyzr launch

2009-06-09 Thread vern
Folks, you might be interested in checking out a network monitoring tool we launched today, Netalyzr. It's a Java applet you can run by surfing to netalyzr.com. It aims to measure a bunch of the properties of and end user's network access, particularly looking for transparent modifications (e.g.,

Re: Traceroute management

2009-06-09 Thread Jon Meek
mon ( http://mon.wiki.kernel.org/index.php/Main_Page ) comes with traceroute.monitor It keeps a state file of current routes and logs only changes. You can specify equivalent hops, hops to ignore, StopAt addresses, and UnexpectedHops. Since it is part of mon, it is easy to alert on a route change

Re: Eye protection in DWDM systems -- what threshold?

2009-06-09 Thread Michael Painter
- Original Message - From: "Kevin Loch" Cc: Sent: Tuesday, June 09, 2009 12:17 PM Subject: Re: Eye protection in DWDM systems -- what threshold? In a pinch the camera on a MacBook pro can be used to detect presence of IR light. Here's light from a 10Gbase-LR xenpak: http://www.majh