Ethernet LAN Multiplexing Multiple Ethernets on Fiber

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Subject Author Date
Multiplexing Multiple Ethernets on Fiber Bob Simon 09-01-04
Posted by Bob Simon on September 1, 2004, 4:48 pm
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I want to multiplex four or eight Ethernet channels over 1400' of
62.5/125 MMF. Can someone tell me who makes this type of equipment,
what it's called, and what's the least I should expect to pay for both
sides?

--
Bob Simon
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Posted by on September 1, 2004, 10:56 pm
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> I want to multiplex four or eight Ethernet channels over 1400' of
> 62.5/125 MMF. Can someone tell me who makes this type of equipment,
> what it's called, and what's the least I should expect to pay for both
> sides?

You could use VLAN in a pair of bridges ...

--
Peter Håkanson
IPSec Sverige ( At Gothenburg Riverside )
Sorry about my e-mail address, but i'm trying to keep spam out,
         remove "icke-reklam" if you feel for mailing me. Thanx.


Posted by T. Sean Weintz on September 1, 2004, 7:18 pm
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phn@icke-reklam.ipsec.nu wrote:
>
>>I want to multiplex four or eight Ethernet channels over 1400' of
>>62.5/125 MMF. Can someone tell me who makes this type of equipment,
>>what it's called, and what's the least I should expect to pay for both
>>sides?
>
>
> You could use VLAN in a pair of bridges ...
>


I think he was thinking more along the lines of wave division
multiplexing. Ya know, running several gig ethernet connections over 1
single fiber.

Vlans are not a replacement for that since you are stuck with 1 gig to
multiplex them all over.



Posted by Bob Simon on September 1, 2004, 6:53 pm
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On Wed, 01 Sep 2004 16:18:08 -0400, "T. Sean Weintz"

>phn@icke-reklam.ipsec.nu wrote:
>>
>>>I want to multiplex four or eight Ethernet channels over 1400' of
>>>62.5/125 MMF. Can someone tell me who makes this type of equipment,
>>>what it's called, and what's the least I should expect to pay for both
>>>sides?
>>
>>
>> You could use VLAN in a pair of bridges ...
>
>I think he was thinking more along the lines of wave division
>multiplexing. Ya know, running several gig ethernet connections over 1
>single fiber.
>
>Vlans are not a replacement for that since you are stuck with 1 gig to
>multiplex them all over.

Yes, after reading a couple of articles I see that WDM is what I want
to do. Do you need separate hardware for this or can you plug a GBIG
in a switch or a network module in a router router to get this
capability? (I have a 2924 and 3640.)

--
Bob Simon
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Posted by Dmitri(Cabling-Design.com on September 2, 2004, 12:56 am
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Bob Simon wrote:

> On Wed, 01 Sep 2004 16:18:08 -0400, "T. Sean Weintz"

>>phn@icke-reklam.ipsec.nu wrote:
>>>
>>>>I want to multiplex four or eight Ethernet channels over
>>>> 1400' of
>>>>62.5/125 MMF. Can someone tell me who makes this type of
>>>> equipment,
>>>>what it's called, and what's the least I should expect to
>>>> pay for both
>>>>sides?
>>>
>>>
>>> You could use VLAN in a pair of bridges ...
>>
>>I think he was thinking more along the lines of wave division
>>multiplexing. Ya know, running several gig ethernet connections
>> over 1
>>single fiber.
>>
>>Vlans are not a replacement for that since you are stuck with 1 gig
>> to
>>multiplex them all over.

> Yes, after reading a couple of articles I see that WDM is what I want
> to do. Do you need separate hardware for this or can you plug a GBIG
> in a switch or a network module in a router router to get this
> capability? (I have a 2924 and 3640.)

> --
> Bob Simon
> remove x from domain for private replies

You'd certainly need separate hardware on both ends for handling DWDM (or
WDM to that matter) that would have prisms to break the light down to
separate wavelengths and then combine it back. These are bulky and will
not fit into your regular GBIC footprint, at least for now. They will
definitely make them smaller in the future, but not yet as a commercial
product.

--
Dmitri Abaimov, RCDD
http://www.cabling-design.com
Cabling Forum, color codes, pinouts and other useful resources for
premises cabling users and pros
http://www.cabling-design.com/homecabling
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