Biggest installation of ISC DHCP?

Nick Urbanik nicku at
Fri Jan 18 20:02:35 UTC 2008

Dear Folks,

On 18/01/08 12:04 +0100, Alfred Nagl wrote:
>On Friday 18 January 2008 10:33, Nick Urbanik wrote:
>> On 18/01/08 16:06 +0800, Aggarwal Vivek-Q4997C wrote:
>> >
>> >Can you please tell that how many requests for IP Address can be
>> >processed by ISC DHCP Server in one second for subscriber base
>> >mentioned below?
>> Well, this is just DHCPACK messages.  This rate is roughly equal to
>> the rate of DHCPREQUEST + rate of DHCPLEASEQUERY messages.
>> prim1:
>>     Avg: 3322.80 messages/min
>>     Max: 6483.69 messages/min
>> sec1:
>>     DHCPACK
>>     Avg: 3608.27 messages/min
>>     Max: 7260.80 messages/min
>Many thanks for giving out these numbers from a real-world
>installation. While you are at it, I would be really grateful if you
>could give some rough figures about the underlying hardware, software
>and load etc.

All dual 2.4GHz Xeons, four with 36G SCSI, two with 40 G IDE disks,
RAM upgraded this week from 1G to 2G for the four biggest.

Plan to migrate the two biggest pairs to four pairs.

OS: RH Linux

ISC dhcp with our own LDAP patch, and the "next file" patch (see so that there is no need to restart the
servers except for dhcpd.conf changes.
Various log tailers to gather statistics and lease details all written
in Perl.
Nick Urbanik   RHCE        nicku at
GPG: 7FFA CDC7 5A77 0558 DC7A 790A 16DF EC5B BB9D 2C24 ID: BB9D2C24
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