How does NT choose a DC?
Paul J Collins
pjdc at eircom.net
Wed May 10 20:59:34 GMT 2000
>>>>> "Luke" == Luke Kenneth Casson Leighton <lkcl at samba.org> writes:
Luke> now, is anyone curious as to _why_ it sometimes takes 30
Luke> seconds to time-out if your DC can't be found?
There is a good doc on the NT DC location process here and how to hack
it here:
http://support.microsoft.com/support/kb/articles/Q181/1/71.ASP?LN=EN-US&SD=gn&FR=0
There seems to be a form of DC location called H-node that will
broadcast if WINS fails to give it some DCs. The 30 secs is probably
the default timeout. I saw a situation like this today on a machine
that had a bogus WINS address for our primary domain.
Then there is M-node, which broadcasts first but does not wait for the
full timeout. In all there are about 5 different location mechanisms
mentioned in that article.
Paul.
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