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Re: OT: Looking for Ethernt/Optical Device

  • From: Eric Kuhnke
  • Date: Tue Jun 01 17:09:00 2004

Be warned that you can't use non-Cisco CWDM SFPs or GBICs in a cisco switch or router... There is a PROM code in the cisco-sold units that is identified by IOS. Plug in a non-cisco SFP/GBIC and it will shut down the port. (This was discussed about 9 months ago on nanog-l, it should be in the archives).

Does anyone actually buy the $3500 CWDM SFPs? That's a $3300 profit margin for Cisco...

Scott McGrath wrote:

Finisar also has CWDM optics in both the SFP and GBIC form factor and they
are quite a bit less expensive than the Cisco solution and they do have a
16 lambda passive OADM as well as the 4 and 8 lambda models.

                            Scott C. McGrath

On Tue, 1 Jun 2004, Erik Haagsman wrote:



What you could try is use the Cisco CWDM-MUX-4 and it's pluggable optics
that can be fit into any GBIC 802.3z compliant slot. It's just an OADM
with 4 or 8 wavelengths that delivers GigE to any box with pluggable
GBICs provided you use the right optics and it's quite a bit cheaper
than using ONS stuff. That said, CWDM doesn't get you much further than
80 kilometres, above that DWDM is your only option, and a hell of a lot
more expensive.

Cheers,

--
---
Erik Haagsman
Network Architect
We Dare BV
tel: +31(0)10 7507008
fax:+31(0)10 7507005
http://www.we-dare.nl


On Tue, 2004-06-01 at 17:30, Michael Smith wrote:


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Hello All:

I'm wondering if anyone has seen a good and cheap(er) solution for
providing multiple Gigabit Ethernet circuits over single pair of
fiber.  I'm looking for a way to do CWDM or DWDM that's cheaper than
putting in a Cisco 15454 or 15327.  I'm only going to be doing 2 GigE
circuits between two switches, so I don't need to plan for future
growth.

If anyone knows of a magic box that will do the above I would love to
hear about it.

Thanks,

Mike

- --
Michael K. Smith        NoaNet
206.219.7116 (work)     866.662.6380 (NOC)
[email protected]      http://www.noanet.net

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