From: Matt Bentley (mattdbentley@gmail.com)
Date: Wed Jul 02 2008 - 21:52:25 ART
And to know what kind of cable goes in which
LC Cable ends - go into SFPs
http://www.shcomwork.com/uploadpic/20068228521140041.jpg
SC Cable ends - go into GBICs
The cable ends can have one on one side and another on the other. Doesn't
really matter.
Also, another word on SFPs - you have both the SX and LX flavors - with the
LX, of course, being able to span longer distances. You usually need
single-mode (color codes vary) for LX and multimode cable for SX (colors
vary), although depending on what distance you need to traverse you can get
away with swapping
SFPs can be either 1GB (show above) or 10GB. Rumors are that 100GB is
coming down the pipe
Here is what a 10GB SFP (referred to as XFP) looks like
http://www.t3systemsinc.com/catalog/images/XFP-10G.gif
10GB "gbics" - also referred to as zenpaks look like this.
http://www.t3systemsinc.com/catalog/images/XENPAK-10GB.gif
As has been said before - these are either put into a small-footprint switch
(ie 3550, 3750, etc.,) or in big chassis - like 6500s through linecards that
can handle multiple of the same reciever (6704, 6724, etc., )
HTH
Matt Bentley
On Wed, Jul 2, 2008 at 8:39 PM, Marko Milivojevic <markom@markom.info>
wrote:
> Someone cynical might add that with the advent of SFP which has an
> identifiable eprom on it, it's much easier for vendors to enforce the
> use of "compatible" modules. Contrary to popular belief, Cisco is by
> far not the worst in this practice. Certain middle-eastern anagram for
> ice comes first... (~$1500 for STM-1/OC3 rebranded Agilent SFP !!!)
>
> On Thu, Jul 3, 2008 at 00:24, Tony Schaffran (GS)
> <groupstudy@cconlinelabs.com> wrote:
> > They are both just media converters.
> >
> > The difference is mostly physical.
> >
> > The SFP comes in LC and the GBIC is SC
> >
> > And both come in copper RJ45 as well.
>
>
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