OT: Looking for Ethernt/Optical Device

Tue Jun 1 21:06:02 UTC 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:
>>
>>>-----BEGIN PGP SIGNED MESSAGE-----
>>>Hash: SHA1
>>>
>>>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)
>>>mksmith at noanet.net      http://www.noanet.net
>>>
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>>
>>
> 
> 