You need to check the switches to make sure they support the xWDM GBICs though. The older Cisco switches don't support them. Last time I checked, 3500XLs didn't support them, but 3550s did... Chuck Church Lead Design Engineer CCIE #8776, MCNE, MCSE Wam!Net Government Services - Design & Implementation Team 13665 Dulles Technology Dr. Ste 250 Herndon, VA 20171 Office: 703-480-2569 Cell: 703-819-3495 cchurch@wamnetgov.com PGP key: http://pgp.mit.edu:11371/pks/lookup?op=index&search=cchurch%40wamnetgov. com -----Original Message----- From: owner-nanog@merit.edu [mailto:owner-nanog@merit.edu] On Behalf Of Erik Haagsman Sent: Tuesday, June 01, 2004 11:49 AM To: Michael Smith Cc: nanog@merit.edu Subject: Re: OT: Looking for Ethernt/Optical Device 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) mksmith@noanet.net http://www.noanet.net

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