CX4 to XFP

[joelja at bogus.com (Joel Jaeggli)]

On 04/16/2010 08:53 AM, Mikael Abrahamsson wrote:
> On Fri, 16 Apr 2010, Joel Jaeggli wrote:
> 
>>
>>
>> On 04/16/2010 08:35 AM, Mikael Abrahamsson wrote:
>>> On Fri, 16 Apr 2010, William Jobs wrote:
>>>
>>>> Has anyone else undertaken a similar setup? What were the difficulties
>>>> you
>>>> encountered especially in terms of reduced throughput, packet loss
>>>> etc. Any
>>>> recommended media converters?
>>>
>>> Why media converter? There are CX4 XFPs as far as I can google...
>>
>> the cx4 interface is xaui 4x3Gb/s, as is xenpack. xfp is xfi 1 x 10Gb/s
>> so connecting the two requires a serdes device.
> 
> http://www.small-tree.com/XFP_CX4_p/xfp-cx4.htm
> 
> "The XFP-CX4 copper transceiver module provides cost effective and
> reliable transport of 10 Gigabit Ethernet LAN data over distances of up
> to 15 meters. Transparently to the user, the module transfers the 10GbE
> data stream over four full-duplex 3.125 GigaBaud channels over a single
> parallel copper cable. The product offers the ability to scale bandwidth
> in 10 Gigabit increments, and directly with the industry standard MDI
> electrical socket."
> 
> I guess this one does that?

yes... so does converting it from xaui to optical. Not objecting to the
characterization of the existance of xfp/cx4 connections, only
clarifying what such a device does.