Round Robin fails in bind 9.2.1 for a large packet (TCP) or big number of items

Mark_Andrews at isc.org Mark_Andrews at isc.org
Mon Dec 1 21:27:01 UTC 2003


> I have a bind 9.2.1 installation to support Microsoft Active
> Directory. The case is that in one of my Microsoft domains I have
> about 40 domain controlers. then when a windows 2000/XP client ask for
> logon to domain always ask the same Domain controler for logon and
> site asignation, that is the first resource record returned by BIND in
> a respose to a question for resolve the A records for "mydomain.com"
> that is because BIND servers never Round Robin for this question and
> always return the A registers in the same order.
> I have anothers Microsoft domains and the Round Robin works fine,
> because I have only 2 or 6 Domain Controlers for these Domains and the
> Round Robin always works.
> I´m looking for solutions in bind 9 but the only thing I see is
> rrset-order option but it is not yet implemented in bind 9.2.1
> 
> 
> Is there any patch for BIND to solve this bug?
> Is there anybody with the same problem? and if this is the case, Some
> sugestions to solve this matter?
> 
> 
> Thanks a lot
> Regard
> Manuel Fernández
> 

lib/dns/rdataset.c:#define MAX_SHUFFLE     32
--
Mark Andrews, Internet Software Consortium
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark.Andrews at isc.org


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