Hi Michal Thanks a lot for your answer. It gives me a quite clear picture of the routing process. But still there are some questions open. Please see my inline comments in your answer below: Thanks a lot for your help. Regards Frank > In short: > 1. RasSrv::RewriteE164 > 2. Authentication (may also perform rewrite or route the call > to a specific alias or IP address, as in case of RADIUS, > for example). > 3. Check if the ARQ (or Setup) message specifies destination > IP address explicitly - if so, use it and go to the point 8. > 4. Check if the first destination alias matches a virtual queue. > Issue a RouteRequest command and wait for RTA, after RTA > go to the point 1 again. [Frank] When jumping back to point 1 after a RTA this could, under certain circumstances, generate a potentially endless loop. Imagine the Virtual Queue prefix is [0-9] and the RTA command issues a numeric alias, then we would have a loop over point 1 to point 4, right? Is the Gatekeeper aware of such loops and does it break it? > 5. Try to find a destination endpoint by an alias or a prefix. > If found, go to the point 8. [Frank] - Do i get it right, that destination endpoint by alias refers to the gatekeeper's list of registred endpoints and prefix refers to GwPrefixes? - Is there any particalur order in which this lookup is done? I.e. first a lookup by the list of registered endpoints and if found none matching a lookup by the list of GWPrefixes? - And is there any particular lookup order within the list of registered endpoints and GWPrefixes (are they sorted or just read in the order of their registration or the order in the configuration file)? > 6. If ParseEmailAliases is turned on, try to check if any alias > is in a name@dns form. If a match is found, go to the point 8. > 7. If the call is from a parent gatekeeper, perform reverse > [Endpoint::RewriteE164] > rewrite and try to find an endpoint by an alias or a prefix. > 8. If no match is found so far, send ARQ to a parent gatekeeper > (if it exists) and go to the point 10. > 9. If no match is found so far, send LRQ to gatekeeper neighbors > and go to the point 10. > 10. That's all. > > For unregistered calls (no ARQ, only Setup received), the sequencse > is similar, except that no parent and neighbor gatekeepers > are queried. > Also, virtual queues are not used in this case. > > ----- Original Message ----- > From: "Frank Fischer" <frank.fischer@xxxxxxxxxxxxxxxx> > To: <openh323gk-users@xxxxxxxxxxxxxxxxxxxxx> > Sent: Monday, October 11, 2004 1:03 AM > Subject: AW: Routing Engine process/algorithm > > > HI Michal > > Version 2.0.8/2.0.9. > > > Greetings > Frank > > > > > -----Ursprüngliche Nachricht----- > > Von: openh323gk-users-admin@xxxxxxxxxxxxxxxxxxxxx > > [mailto:openh323gk-users-admin@xxxxxxxxxxxxxxxxxxxxx] Im > > Auftrag von Zygmuntowicz Michal > > Gesendet: Sonntag, 10. Oktober 2004 23:59 > > An: openh323gk-users@xxxxxxxxxxxxxxxxxxxxx > > Betreff: Re: Routing Engine process/algorithm > > > > There is no such documentation - perhaps a paragraph > > about this should be added to the manual. Which version > > do you refer to? > > > > ----- Original Message ----- > > From: "Frank Fischer" <frank.fischer@xxxxxxxxxxxxxxxx> > > Sent: Saturday, October 09, 2004 2:04 AM > > > > > > > Is there any documentation about the routing process in the > > Gatekeeper? I > > > would like to understand in which order which routing > > sub-processes like > > > ReWriting, Virtual Queue and so on is processed respective > > how calls are > > > routed related to different conditions/configuration options. > > > > > > Thanks a lot for your help > > > Frank > > > > ------------------------------------------------------- > This SF.net email is sponsored by: IT Product Guide on > ITManagersJournal > Use IT products in your business? Tell us what you think of > them. Give us > Your Opinions, Get Free ThinkGeek Gift Certificates! Click to > find out more > http://productguide.itmanagersjournal.com/guidepromo.tmpl > > _______________________________________________________ > > List: Openh323gk-users@xxxxxxxxxxxxxxxxxxxxx > Archive: http://sourceforge.net/mailarchive/forum.php?forum_id?49 > Homepage: http://www.gnugk.org/ > > ------------------------------------------------------- This SF.net email is sponsored by: IT Product Guide on ITManagersJournal Use IT products in your business? Tell us what you think of them. Give us Your Opinions, Get Free ThinkGeek Gift Certificates! Click to find out more http://productguide.itmanagersjournal.com/guidepromo.tmpl _______________________________________________________ List: Openh323gk-users@xxxxxxxxxxxxxxxxxxxxx Archive: http://sourceforge.net/mailarchive/forum.php?forum_id?49 Homepage: http://www.gnugk.org/
