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Beginner

Ask the Expert: Catalyst 3K Series Update

Hi,

regarding UPoE, please share plans on supporting it by Catalyst 3850.

Will new, higher capacity power supplies be launched?

(i.e. for 24-port PoE model, if loaded with a currently available 1100WAC powersupply,  switch will take approximately 280 watts for itself, leaving 34Watt per port, but not 60Watts...). How it will behave if loaded with two such power supplies? Will it allow 60 Watts per port, if the software allows, or must it be upgraded to 1720WAC power supply?

Cisco Employee

Ask the Expert: Catalyst 3K Series Update

Hi- there are plans to release a UPOE version with the same power supplies.

Thanks,

Dan

Beginner

Re: Ask the Expert: Catalyst 3K Series Update

Dan, please clarify - UPoE will be able to draw power from both power supplies (1100WAC + 1100WAC), or second power supply is only for redundancy.

Thank you!

Beginner

Ask the Expert: Catalyst 3K Series Update

Hi,

I'm currently researching Catalyst 3850 to potentially use in our data center and I have two questions:

1. Does Cat3850 guarantee line-speed, no oversubscription between any ports when four switches are stacked up?

2. Where I can find in-depth architecture description ?

Thanks,

Peter

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Cisco Employee

Ask the Expert: Catalyst 3K Series Update

Hi- the 3850 is line-rate and there won't be any oversubscribtion on the backplane in and stacking configuration (4 or 9 switches).

Thanks,

Dan

VIP Expert

Re: Ask the Expert: Catalyst 3K Series Update

Disclaimer

The Author of this posting offers the information contained within this posting without consideration and with the reader's understanding that there's no implied or expressed suitability or fitness for any purpose. Information provided is for informational purposes only and should not be construed as rendering professional advice of any kind. Usage of this posting's information is solely at reader's own risk.

Liability Disclaimer

In no event shall Author be liable for any damages whatsoever (including, without limitation, damages for loss of use, data or profit) arising out of the use or inability to use the posting's information even if Author has been advised of the possibility of such damage.

Posting

Dan Schnour wrote:

Hi- the 3850 is line-rate and there won't be any oversubscribtion on the backplane in and stacking configuration (4 or 9 switches).

Thanks,

Dan

Dan, could you further explain how StackWise-480 could not be oversubscribed with three or more 48 port 3850s with 4x10g?  Normally fabrics need to be 2x all port bandwidths.  I.e. 3 x 176 Gbps = 528 Gbps > 480 Gbps?

Table 7. Cisco Catalyst 3850 Performance Specifications

Performance Numbers for All Switch Models

Switching capacity

176 Gbps on 48-port models

88 Gbps on 24-port models

Stacking bandwidth

480 Gbps

Participant

Ask the Expert: Catalyst 3K Series Update

Hi, heard  view months ago that EVN Easy Virtual Network which is currently supported on C4K5 will come on the Cat3750-x, 3650-x series. I am stil missing this feature, any idea when it will be available? Same question or the new 3850.

Thx

Hubert

Participant

Ask the Expert: Catalyst 3K Series Update

Hi,

I've got a 3560-X and 3560-C switch which ships with a USB style console as well as the tranditional RJ series console port.

However I am running Windows 8 on my desktop and laptop, and there are no drivers for the Cisco USB Consoles for Windows 8 yet as far as I can tell.  The Windows 7 drivers don't work under Windows 8.

Can you please find out when these will be made available?   Modern laptops don't have serial ports, but it seems rather retrograde to have to go back to using a USB-Serial converter simply because Cisco haven't released any drivers for the USB Consoles yet on the most recent published Microsoft operating systems.

Thanks,

Reuben

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