RE: OT: Looking for Ethernt/Optical Device

["Michael Smith" <mksmith () noanet net>]

Hello Eric:

You can issue the following command in the 3550 series that takes care
of that issue.  However, your mileage may vary.  :-)

No errdisable detect cause gbic-invalid

Mike

> -----Original Message-----
> From: owner-nanog () merit edu [mailto:owner-nanog () merit edu] On Behalf
Of
> Eric Kuhnke
> Sent: Tuesday, June 01, 2004 2:06 PM
> To: nanog () merit edu
> Subject: Re: OT: Looking for Ethernt/Optical Device
>
>
> 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 () noanet net      http://www.noanet.net
> > > >
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> > > >
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> > > > 41QL7T1eyK1EQ4ZMnVJU+l2p
> > > > =hDVT
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