Performance... no more than 150 leases per second?

David W. Hankins dhankins at isc.org
Thu Jun 10 16:44:46 UTC 2010


On Thu, Jun 10, 2010 at 11:46:53PM +1000, Glenn Satchell wrote:
> Allow and deny are per pool, so they need to stay in the pools. All other 
> options, settings, etc, can be defined in the subnet, or shared-network, or 
> group, or global space. In general push options up to the area where you 
> only specify them the fewest number of times.

'allow/deny x;' may also do completely different things in the subnet
and pool scopes (an ACL in the pool versus a scoped configuration that
affects DHCP processing in the subnet).  Depends on the 'x'.

>>>   Do you mean that it would be more efficient to change
>>>     subnet 10.32.172.0 netmask 255.255.252.0 {
>>>        pool {
>>>            range 142.32.172.10 142.32.175.254;
>>>        }
>>>     }
>>>   into
>>>     subnet 10.32.172.0 netmask 255.255.252.0 {
>>>        pool {
>>>            range 142.32.172.10 142.32.172.255;
>>>        }
>>>        pool {
>>>            range 142.32.173.0 142.32.173.255;
>>>        }
>>>        pool {
>>>            range 142.32.174.0 142.32.174.255;
>>>        }
>>>         pool {
>>>            range 142.32.175.0 142.32.175.254;
>>>        }
>>>     }
>>> ?

Yes, but note that if we ever address the memory structures, you'd
be defeating their purpose.  So I'm suggesting this as a temporary
workaround.

-- 
David W. Hankins	BIND 10 needs more DHCP voices.
Software Engineer		There just aren't enough in our heads.
Internet Systems Consortium, Inc.		http://bind10.isc.org/
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