WS-X4712-SFP+E module can't put into an R-E chassis ?

Does anyone know why is not possible to put a WS-X4712-SFP+E - module into an R-E chassis?

The module has the same connection to backplane as the WS-X4748-UPOE+E

and this one works in a R-E chassis.

I know the restriction of Cisco that the 4712 is only supported in 4503-E, 4506-E,

4507+E and 4510+E, WS-X4448-GB-SFP, but why?

Are there hardware-restrictions, is the backplane different?

The solution:

The reason is the chassis itself.

The 4712 has a 48 gigabits per-slot capacity. You need the Sup 7E on the R+E chassis to achieve the 48Gbps per slot in order to get a 2.5:1 over-suscription rate.

On the R-E chassis, the 7E defaults to 24Gbps per slot, and the over-subscription ratio increases to 5:1 which was considered unacceptable. Hence we have disabled the working of the 4712 on R-E chassis. It is a chassis limitation.

How to Reload the Cisco Modules

How to Reload the Cisco switching Modules? Below are the details and steps.

Switching modules automatically download their images from the supervisor module, and do not need a force download. This procedure is provided for reference should a need arise.

To replace the image on a switching module, follow these steps:

Step 1   Identify the switching module that requires the new image (see the "Upgrading Software Images on Modules" section).

Step 2   Issue the reload module number force-dnld command to update the image on the switching module.

switch# reload module number force-dnld

Where number indicates the slot in which the identified module resides. For example, if the identified module resides in slot 9:

switch# reload module 9 force-dnld...

Jan  1 00:00:46 switch %LC-2-MSG:SLOT9 LOG_LC-2-IMG_DNLD_COMPLETE: COMPLETED

downloading of linecard image. Download successful...

Customers interested in purchasing Cisco modules or the price, two great modules for you:

WS-X4448-GB-SFP

WS-X4548-RJ45V+

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