nanog mailing list archives

Re: high performance open source DHCP solution?


From: George Herbert <george.herbert () gmail com>
Date: Tue, 19 Jul 2011 22:08:39 -0700

220-ish per second sounds roughly like a 1-disk (or 2 mirrored disk)
IOPS problem, personally...

But any number of other things could be affecting it.

The number should be thousands if your disk / filesytem RAM cache /
server configuration aren't inadequate...

On Tue, Jul 19, 2011 at 8:54 PM, Jimmy Hess <mysidia () gmail com> wrote:
On Tue, Jul 19, 2011 at 9:21 PM, Rogelio <scubacuda () gmail com> wrote:
The free DHCP solution, ISC, seems to be having scaling issues (i.e.
handling only about 200 DHCPDISCOVER and 20 DHCPRENEW requests), and I
was wondering if anyone had any open source suggestions of solutions
that could scale much better?

Where do you get that ISC DHCPD only handles 200 DHCPDISCOVER / 20 DHCPRENEW
requests?    That doesn't sound right.   So I wonder what are you measuring?

Is this a number of answers per second your implementation of ISC
DHCPD is providing successfully?
There are architectural facts about any environment besides what
software is performing the DHCP task.

How many  I/Os  + fsync()'s  per second can this DHCP server handle
that does only 20 renews?

--
-JH

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-- 
-george william herbert
george.herbert () gmail com

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