Differences between two models of Cisco 3850 switches

FRAGMAN BOB

Limp Gawd
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Jan 25, 2005
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We are looking at doing some switch replacement. These switches will be in for ~7 years.We need POE for a VOIP phone system, and 10gb uplinks back to the core. We want to have the ability to go POE+ in the future.
We were quoted from our vendor for:
WS-C3850-48P-S with 2x715w Power supplies. It looks like the data sheet says that to get POE+ you need 2x1100w or 1x1100w & 1x715w. Do we need to step up to the WS-C3850-48PF-S?
 
Dig through ciscos info on this and see. Also have your VAR dig into things for you too.

http://www.cisco.com/en/US/products/ps12686/index.html

How big of stacks of switches will you be doing? Also I believe the 3850's do power sharing throughout the stack so the size of your power supplies directly dictates the amount of power you can draw from PoE. I've got two on order so I haven't played with them yet to see how things work out.
http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps12686/at_a_glance_c45-720512.pdf
 
We are looking at doing 6 stacks of 2 switches and 2 stacks of 3 switches.

Then that fits for you with the 4 switch limitation right now. Odds are they will do updates to the firmware to allow more switches in the stack (if they haven't already put one out).

That was a limitation for us out of the box we said bleh.
 
So unless I'm reading that data sheet wrong on Cisco's site, it looks like I'll need 2x1100w if I want to have POE+ ability?
 
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