Contribution (Inter-GK Communications)

Roy, Radhika R, ALTEC rrroy at ATT.COM
Tue Aug 18 08:20:56 EDT 1998


> Hi Everyone:
>
> In addition, I am sending a revised abstract of the proposed contribution
> as follows:
>
> Abstract
>
> A large H.323 network may consist of multiple zones. A H.323 zone can be
> physical or logical. H.323 signaling messages such as location, zone,
> admission, bandwidth, discovery, registration, and others may have to
> travel multiple gatekeepers between the source-destination path because
> the first receiving gatekeeper may have to send to other gatekeepers to
> process these messages.
>
> This contribution facilitates the inter-gatekeeper communications with
> distributed gatekeeper architecture through extension of the existing
> H.323 signaling messages. Three new fields that need to be used to extend
> the signaling message sets are pathValue, endpointType, and
> gatekeeperIdentifier. This simple extension in the H.323 signaling message
> set will satisfy the needs for inter-gatekeeper communications. The source
> gatekeeper will route the message to destination gatekeeper knowing the
> address table for the destination entities it serves. However, it is left
> up to the implementation of the lower network layer how the routing
> capabilities (e.g., intradomain and interdomain routing protocols) to be
> used between the gatekeepers to route the messages since every gatekeeper
> will have a network level address, and the routing scheme between the
> gatekeepers have not been addressed in this contribution. The proposed
> inter-gatekeeper communications model is expected to provide scalability
> in view of the large-scale H.323 network. In addition, this contribution
> not only complements the existing H.323 signaling message sets, it also
> complements all other schemes that have been proposed so far for the
> inter-gatekeeper communications.
>
> Regards,
>
> Radhika R. Roy
> AT&T
>
>
>       ----------
>       From:   Roy, Radhika R, ALTEC
>       Sent:   Monday, August 17, 1998 6:14 PM
>       To:     'Mailing list for parties associated with ITU-T Study Group
> 16'
>       Subject:        RE: Contribution (Inter-GK Communications)
>
>               Hi Everyone:
>
>               The AT&T contribution - "Inter-Gatekeeper Communications
> with Distributed
>               Gatekeeper Architecture of Multiple Zones" is also intended
> for discussions in our biweekly
>               H.323 ITU-T SG16 inter-GK meetings.
>
>               Thanks and regards,
>
>               Radhika R. Roy
>               AT&T
>
>
>               ----------
>               From:   Roy, Radhika R, ALTEC
>               Reply To:       Mailing list for parties associated with
> ITU-T Study Group 16
>               Sent:   Friday, August 14, 1998 5:51 PM
>               To:     ITU-SG16 at MAILBAG.INTEL.COM
>               Subject:        Contribution (Inter-GK Communications)
>
>               <<File: nh_gkx2.doc>>
>               Hi Everyone:
>
>                <<nh_gkx2>>
>
>               The AT&T contribution - "Inter-Gatekeeper Communications
> with Distributed
>               Gatekeeper Architecture of Multiple Zones" is enclosed here
> for the ITU-T
>               SG16 meeting to be held in Geneva (September'98).
>
>               Thanks and regards,
>
>               Radhika R. Roy
>               AT&T
>               Room 1K-330
>               101 Crawfords Corner Road
>               Holmdel, NJ 07733, USA
>               Tel: (732) 949 8657
>               Fax: (732) 949 8569
>               Email: rrroy at att.com
>
>
>
>
>



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