[c-nsp] CAB-SFP-50CM= question

[Tolstykh, Andrew]

The interface will end up in the err-disabled state due to the
"unsupported gbic detected" message, at least that's what I got in the
lab when I attempted to interconnect 3560's and 3750's with 2960's.

CISCO CATALYST 3560 SFP INTERCONNECT CABLE - CAB-SFP-50CM=
The Cisco Catalyst 3560 SFP Interconnect Cable provides for a low-cost
point-to-point Gigabit Ethernet connection between Catalyst 3560
switches. The 50cm cable is an alternative to using SFP transceivers
when interconnecting Catalyst 3560 switches through their SFP ports over
a short
distance.

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Justin Shore
Sent: Monday, February 11, 2008 3:38 PM
To: Robert Hass
Cc: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] CAB-SFP-50CM= question

Robert Hass wrote:
> Hi
> 
> I just wondering about Cisco CAB-SFP-50CM= (Catalyst 3560 SFP
> Interconnect Cable, 50cm).
> Can I use it for:
> 
> 1) Connect two Cat6500/Sup32 together via CAB-SFP-50CM= (2 for each
> switch) and form 2Gb/s PortChannel ?
> 2) Connect Cat2960G to two Cat6500 ? (and provide redundancy via RSTP)
> 
> It could be nice alternative to SFP SX...

Robert,

I can't think of a technical reason why it wouldn't work, as far as the 
IOS is concerned (though I have never tried it).  I would say that the 
cable is very short.  50cm isn't very long at all.  You could 
potentially do it if the 6500s are in adjacent 2-posts with no vertical 
wire managements between the 2-posts but the overall length would be 
questionable.  One thing I'll point out is that in our 3560s the 
SFP-50CM pops out of the SFP bay *very easily*.  I wire-tied the slack 
to the frame to prevent them from popping out, again.  FYI

Justin


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