[c-nsp] Output drops on 2960

John Gaffney jgaffney at nan.com
Fri Feb 5 14:01:47 EST 2016


We do have a few of those out the in field and they are solid switches. Not a bad thought. Looking at the buffer size table looks like its much fatter than the 2960..

The 3850 and 3650 seem like OK middle ground. Anybody deploy those? They decent?

Thanks,

John

-----Original Message-----
From: Mack McBride [mailto:mack.mcbride at viawest.com] 
Sent: Friday, February 5, 2016 1:37 PM
To: John Gaffney <jgaffney at nan.com>; Nick Cutting <ncutting at edgetg.co.uk>; Tom Hill <tom at ninjabadger.net>
Cc: cisco-nsp at puck.nether.net
Subject: RE: [c-nsp] Output drops on 2960

4948Es are pretty good if you need 10/100/1000.
They are also relatively cheap and can be bought used at a good discount.
If you don't need 10/100 then the Nexus 9300 series has a shared 50Mbyte buffer.
But they are relatively pricey and new so used is not really available.


Mack McBride | Senior Network Architect | ViaWest, Inc.
O: 720.891.2502 | C: 303.720.2711 | mack.mcbride at viawest.com | www.viawest.com


-----Original Message-----
From: cisco-nsp [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of John Gaffney
Sent: Friday, February 05, 2016 10:46 AM
To: Nick Cutting; Tom Hill
Cc: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] Output drops on 2960

This looks like a great guide.

Looks like I'll be working to replace the switch with something with more power. Any body have a recommendation for a switch with some bigger buffers and 2x 10G uplinks? Need at least 12 Gig ports.

Thanks,

John


-----Original Message-----
From: cisco-nsp [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Nick Cutting
Sent: Friday, February 5, 2016 11:00 AM
To: Tom Hill <tom at ninjabadger.net>
Cc: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] Output drops on 2960

I use this list for switch buffers - seems pretty accurate to me:

http://people.ucsc.edu/~warner/buffer.html


-----Original Message-----
From: cisco-nsp [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Tom Hill
Sent: 05 February 2016 15:54
Cc: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] Output drops on 2960

On 05/02/16 15:45, Nikolay Shopik wrote:
>> > Though, I've not seen anything mentioned in regards to the newer 3650/3850.
> These have double amount of shared memory compare to what 2960S/3560X 
> have

Good to know!


--
Tom
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