[c-nsp] ASR9k CWDM

[cisconsp at SecureObscure.com]

Hi Chris, thanks for taking the time to provide those links.

I am not an optical transport expert, so after a little googling I was
wondering what you thought of this solution:

Purchase the tunable 10G 80km optics from Cisco such as the DWDM-XFP-C= 
"10G Multirate C Band Tunable DWDM XFP" and use passive DWDM muxes such as
the OptoSpan DWDM-T16SUL-000
http://www.optospan.com/passive-wdm-dwdm-mux.php and use that to build
multiple 10gig links across the metro fiber.

Another question that I was not able to specifically answer while looking at
the 10gig xfp dwdm optics page:
http://www.cisco.com/en/US/prod/collateral/modules/ps5455/data_sheet_78-4585
30.html was: what is the maximum supported distance of the DWDM-XFP-C,
especially through a passive mux. My understanding was that there would be
power loss when muxing/demuxing and our sites are ~50km in some cases. Do
the DWDM XFP optics support that kind of distance?

Thanks again for all the information. I really appreciate your input,

John


-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of chris stand
Sent: Saturday, October 15, 2011 8:01 AM
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] ASR9k CWDM

meant to attach the XFP module link too - (I am guessing this is what
you are planning on using )
http://www.cisco.com/en/US/docs/routers/asr9000/hardware/ethernet_line_card/
installation/guide/asr9kELCIGinstalling.html#wp709833

use the XFP DWDM optic info from my prior mail and look that up in the
pricing tool ( they are not cheap as you will find )

Avago & Agilestar make very reasonable priced DWDM optics

my experience is between 6500s and 7Ks with an eye to replacing the
6500s with more 7Ks




> Message: 5
> Date: Fri, 14 Oct 2011 19:52:00 -0500
> From: <cisconsp at SecureObscure.com>
> To: <cisco-nsp at puck.nether.net>
> Subject: [c-nsp] ASR9k CWDM Optics
> Message-ID: <AF541A37EEA54628AB3454EC71D69F01 at Nemesis>
> Content-Type: text/plain;       charset="US-ASCII"
>
> Good evening everyone,
>
>
>
> We have a requirement to use passive CWDM boxes (limited dark fiber)
between
> 3 sites within the same metro area for point to point 10gig connections,
and
> are wondering what CWDM optics are compatible with our ASR 9006 routers.
The
> cisco pricing tool does not display any colored XFP modules for the line
> cards in the 9k.  We are not currently married to a CWDM mux or optic
> vendor, although cost is an obvious concern, and are willing to explore
> non-Cisco solutions providing the feedback from their users is positive.
>
>
>
> If you have experience with 10gig CWDM between 9k's, or have similar
> deployments, please let me know your thoughts and experiences. Thanks for
> your time,
>
>
>
> John

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