Hans,

H.323 describes this situation in section 7.2.2. If the aliases _and_ the transport addresses (i.e. IP address + TCP port) are distinct, then the Gatekeeper is able to distinguish the two as really being different.

If _either_ the aliases _or_ the transport addresses are identical then it is up to the Gatekeeper implementation to decide what to do.

If the alias is the same (and the transport address is not), it is up to the Gatekeeper to decide to accept or reject the registration. If the transport address is the same (and the alias is not), it is advisable to replace the previous registration with the new one.

Regards,

Frank

gdiehl@INNOVAPHONE.COM@SMTP@MAILBAG.INTEL.COM on 18-05-2001 15:39:11 Please respond to gdiehl@INNOVAPHONE.COM@SMTP Sent by: ITU-SG16@MAILBAG.INTEL.COM To: ITU-SG16@MAILBAG.INTEL.COM@SMTP cc: Subject: AW: Gatekeeper behavior question Classification:

Hi Hans, yes, you have to map IP address + port to an alias. The H.323 standard only talks about "transport addresses" which have to be mapped. And a transport address in the IP case consists of addr+port. Guntram

-----Ursprüngliche Nachricht----- Von: Hans Viens [mailto:hviens@MEDIATRIX.COM] Gesendet: Freitag, 18. Mai 2001 14:48 An: ITU-SG16@MAILBAG.INTEL.COM Betreff: Gatekeeper behavior question

Hi folks!

I just want to pin point a place on the H.323 standard that talk about the behavior of a gatekeeper on a specific scenario. My question is: Is it mandatory for a gatekeeper to accept the registration of a unit using 1 IP address and supporting mutiple H.323 endpoint (multiple ports) (i.e EP1: 192.168.0.1:2000; EP2: 192.168.0.1:2001 ... ) ? Also, is it mandatory for a gatekeeper to translate the alias of an endpoint with both its IP address & port number ?

If you could help me to point me to a section in the H.323 standard, I would appreciate it!

Regards,

Hans

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