In a message written on Sat, Oct 19, 2013 at 07:33:19PM -0700, Chris Costa
wrote:
> What are the opinions/views on attenuating short, 1310nm LR cross-connects.
> Assume < 20m cable length and utilizing the same vendor optics on each
> side of the link. Considering the LR transmit spec doesn't ex
Subject: Re: Pad 1310nm cross-connects? Date: Sun, Oct 20, 2013 at 07:21:42AM
+0200 Quoting Måns Nilsson (mansa...@besserwisser.org):
> Subject: Pad 1310nm cross-connects? Date: Sat, Oct 19, 2013 at 07:33:19PM
> -0700 Quoting Chris Costa (ccosta92...@gmail.com):
> > What are the opinions/views on
On Sun, 20 Oct 2013, joel jaeggli wrote:
It's a pretty normal situation. even with a 1-2m jumper I see light levels
that are well below the maximum rx levels for 10km optics. e.g. the max might
be .5 and the actual readings are -1.4 - -2.7. our WDM terminals sit in the the
adjacent racks to
It's a pretty normal situation. even with a 1-2m jumper I see light levels
that are well below the maximum rx levels for 10km optics. e.g. the max might
be .5 and the actual readings are -1.4 - -2.7. our WDM terminals sit in the the
adjacent racks to the pop routers so they're all like that.
Hi Chris,
I'm with an optics vendor, Luma optics. All our optics are field programmable
to work in any intended network environment. Regarding your question, its
unnecessary to pad a 10km LR, even with such a short reach ( 20m) . If it were
an ER or ZR, it would be a different story.
Good lu
On 10/20/2013 12:18 PM, Marco Davids wrote:
Op 20-10-13 00:36, Randy Bush schreef:
abha ahuja, researcher and operator, died this day in 2001
All these dear people that have passed away... Makes you think about
your own mortality, doesn't it?
And the list isn't going to get shorter, I am afrai
Op 20-10-13 00:36, Randy Bush schreef:
> abha ahuja, researcher and operator, died this day in 2001
All these dear people that have passed away... Makes you think about
your own mortality, doesn't it?
And the list isn't going to get shorter, I am afraid. Kinda depressing...
Perhaps we should crea
On Sat, 19 Oct 2013 12:43:49 -0700, Matthew Petach said:
> Think about it; if network A prepends 10x to network B, and not at all to
> network C; but network B is a free peer of mine, and network C is a transit
> network I pay money to; following the typical convention of "routes learned
> from ne
> LR usually needs padding in that scenario, IMHO.
Usually does not.
1G parts are so cheap that measurement, test and the attenuators
(unless you are wrapping the fibre round a pencil) will cost more
than each device is worth. How many fail?
If in doubt check the device spec such as
http:
Much of the 'new' activity in ISP's is in wireless last mile. WISPA is
a trade organization with several mailing lists where the topics you
mention are discussed on a regular basis and new ISP questions are not
unusual (http://www.wispa.org/mailing-lists). The archives of the
general mailing
Notify Me wrote:
That being said, some people who have a lot more faith in my abilities than
I do seem to think I am the go-to guy for network information. And they
foolishly asked me for assistance in putting together a small ISP network
which is supposed to cater for home users inside of a re
Given your starting conditions, I'd advise the reading of
http://compnetworking.about.com/cs/isps/gr/aapr-cisco_ispe.htm which you
can download a free (2001 ed.) copy of from Cisco at
ftp://ftp-eng.cisco.com/cons/isp/documents/IOSEssentialsPDF.zip.
Probably a little dated and with lots of Cisco sp
Deeply missed. I can't believe it's been that long.
On Sat, Oct 19, 2013 at 3:36 PM, Randy Bush wrote:
> abha ahuja, researcher and operator, died this day in 2001 at a
> tragically early age. if you did not know her, search a bit.
> she did a lot, and with an open mind and heart.
>
> randy
>
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