Numerical Addressing Space Management Team (NASM) Working Group

Scope of Work: NASM is a working group of the Video Development Initiative (ViDe) and is responsible for the management of ViDeNet numerical address space, which is currently utilizing the Global Dialing Scheme (GDS). This group maintains the GDS numerical address space and supporting routing schemes, including E.164int integration, hierarchical and flat structures, with particular emphasis on the root level and top tier architectures. Of particular importance is the alignment of existing H.323 addressing to E.164-like structures, in order to prepare the way for an eventual migration toward full DNS-based dialing via h323 URL, ENUM and related numerical address translation schemes. This group is responsible for the allocation of ViDeNet address space to lower tier domains. In particular, the group identifies which organizations and research networks will be responsible for managing national gatekeepers. The group's operational responsibilities include the review of new ViDeNet membership requests, assignment of address space, and configuration of the top-level gatekeeper meshes. Members of this group will have root administrative access to the ViDeNet management system and all top-level gatekeepers and will ensure the integrity of data registered with ViDeNet. All address assignments made by this group are final.

NASM is not chartered to make changes to the GDS dial plan. Dial plan changes and other architectural recommendations from NASM require the support of the ViDeNet Zone Administrators and the approval of the ViDe Steering Committee.

NASM members are required to have clearance from their employer to dedicate 5 hours per week to maintaining the hierarchy, reviewing peering requests, troubleshooting and performing system maintenance. Additionally, responsibilities include promotion of the service to constituencies and attending regular meetings.

NASM members may be required to provide hosting services for root gatekeepers, including 7x24 monitoring, Internet connectivity, power and rack space. Members will be required to provide host and gatekeeper application administrative access to the team in order to facilitate shared, remote management of root clusters.

IMTC Liaison: A significant goal of the ViDeNet project is to expand ViDeNet membership into the private sector to include carriers, service providers and technology developers. Greater private sector participation will help the research and private sectors speak with a unified voice in order to raise the level of awareness within the ITU-T and the IETF about the importance of dial plans and numbering schemes with respect to video and voice over IP. Goals include the creation of an environment which stimulates the submission of contributions to standards bodies on dial plan architectures, increasing the level of participation in standardization activities, and increasing the level of dialog about dial plan architectures.

Toward this end IMTC and ViDe will jointly provide representatives to NASM. This will be an aid to ensuring the broadest possible perspectives. Further, it will ensure that routing nodes are deployed across research networks and the public Internet, ensuring the greatest possible service resiliency.

Membership Guidelines: Project team members are appointed by the Working Group Chair. All members of this group must be zone administrators or representatives from active ViDeNet zones. Membership terms are from January 1 to December 31 of any calendar year and terminate automatically, with the option to request renewal. IMTC is responsible for selecting its representatives, ensuring a fair process for that selection, and presenting its selected representatives to the Working Group Chair. The Working Group Chair is expected to accept the IMTC’s selected representatives unless some reasonable objection is identified, in which case the IMTC will propose alternate representatives.

Working Group Chair: Tyler Miller Johnson

Team Members and Liaison Responsibilities:

John Martin – UKERNA (United Kingdom)

Clayton Forbes – AARNet (Australia)

Sean O’Brien – HEAnet (Ireland)

Tyler Miller Johnson – ViDe (United States)

Stephen Kingham – AARNet (Australia)

Stuart Morris – WireOne (IMTC Liaison)