Al, thanks for the reply post. i think i recall you being in on the correspondence last time round.
point taken about 'VERY little value in letting Outlook use a different GC .." - i have only thought that this is a little (can't quantify unfortunately) wasteful on WAN bandwidth given we have a local copy of the directory so why not use it ?? i still if only perhaps from a technical purity view would like to understand how the 'closestGc' actually works ?? - it seems one of the less well documented configs GT > No, I wouldn't expect the client to favor the RR weighting. It's going > to find a GC by talking to the Exchange server which is going to hand > out which GC to use. That's been the problem all along IMHO. > Additionally, there is VERY little value in letting Outlook use a > different GC than one local to the Exchange servers except for the GAL > download when in offline mode. Otherwise, very little savings in my > experience. > > Outlook behavior changes frequently and varies depending on the exact > revision of Outlook that you're using. This was painfully evident in > OL98 through OL2K versions. > > Utilization of the closest GC key is notoriously hard to use effectively > especially for roaming users but it is used to predispose Outlook to the > answer that it would otherwise get from Exchange servers. > > Does that help? The only two ways to control the GC site that Outlook > uses is to either use that key else have Exchange hand out the GC you > want it to. There were some improvements in that process in OL2K3 and > Exchange 2K3 products, but you're not using those versions right? > > Al > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Graham Turner > Sent: Friday, September 23, 2005 11:05 AM > To: [email protected] > Subject: [ActiveDir] global catalog discovery / Outlook XP > > Dear all, i have been away from the list for absolutely ages but i need > to go over an issue of GC discovery with Outlook XP that need some help > on. > > this may be regarded as OT to this list, but have posted on an MS > Outlook newsgroup site with nothing back so i hope this post to be in > order. > > i recall what ended up as a trilogy many months ago on a similar topic > but need to get fairly specific information on the mechanisms used by > Outlook XP to locate a GC server. > > there was much discussion on the configuration of Outlook to use local > GC discovery (by way of the CLOSESTGC reg value) but on the basis of > this configuration can anyone elaborate on the mechanism that Outlook > configured as such uses to locate a GC. > > as i understand the MS documentation, this registry value disables the > 'referral' > that the client gets (presumably from DSACCESS / DSPROXY). > > as such it must then have its own mechanism - THIS IS WHAT WE ARE > INTERESTED IN - > > we have attempted loading the SRV RR's (ldapsrvpriority) so the > discovery process is loaded towards a particular GC, but this does not > seem to prevail > > as always assistances gladly received. > > GT > > > > > > List info : http://www.activedir.org/List.aspx > List FAQ : http://www.activedir.org/ListFAQ.aspx > List archive: > http://www.mail-archive.com/activedir%40mail.activedir.org/ > List info : http://www.activedir.org/List.aspx > List FAQ : http://www.activedir.org/ListFAQ.aspx > List archive: http://www.mail-archive.com/activedir%40mail.activedir.org/ > List info : http://www.activedir.org/List.aspx List FAQ : http://www.activedir.org/ListFAQ.aspx List archive: http://www.mail-archive.com/activedir%40mail.activedir.org/
