TERENA TAC meeting Lyngby, Denmark 21 st May 2007 TF-VSS proposal for a Pan-European...

TERENA TAC meetingLyngby, Denmark

21st May 2007

TF-VSS proposal for a Pan-European videoconferencing

service

András Kovács, NIIF/HUNGARNET [email protected]

mailto:[email protected]

Overview of TF-VSS

NIIF – http://www.niif.hu

• TF-VSS: Videoconference Service Studies

group

• Mandate: 01/10/2006 – 30/09/2007

• Preliminary support for a European VC service:

• Gather needs and general views

• Prepare a specification (recommendation)

• High level technical plans

• GN2 Y4 proposal preparation

• Feasibility study

• Reminder:• GN2 Y3 → failed• Technical complexity, lack of motivation

Status of TF-VSS activities


Activity

Schedule Title Leader

A1 Start: 01/10/06 End: 06/10/06

Setting up taskforce… András Kovács (NIIF/HUNGARNET)

A2 Start: 01/10/06 End: 31/10/06

Survey on future plans and EU VC service (D2.1)

András Kovács (NIIF/HUNGARNET)

A3 Start: 01/11/06End: 30/11/06

Service specification (D3.1) John S. Martin (JANET)

A4 Start: 01/11/06 End: 30/06/07

Designing high-level technical plans (D4.1)

András Kovács (NIIF/HUNGARNET)

A5 Start: 01/07/07 End: 30/09/07

Final report (D5.1) András Kovács (NIIF/HUNGARNET)

Activity A2


• Web survey:• NREN/institutional VC deployments and mid-term plans• Approach to a European VC service• D2.1 available at TF activities’ page:http://www.terena.org/activities/tf-vss/activity_areas.html

• Responders: 19 European NRENs and 11 large

institutions

http://www.terena.org/activities/tf-vss/activity_areas.html

Activity A3 / GN2 proposal I.


• Service specification: D3.1 is available

• Basic (1st phase) and advanced (2nd phase)

service

• Pros & cons of central and shared

implementations

Central Shared

Standards based (H.323 and SIP) + multipoint (MCU) service

Central MCU resource Based on NRENs’ spare capacities, heterog. equipments

Easy multiprotocol (H.323/SIP) operation Difficult multiprotocol operation

Shared support on a single device Shared support on multiple devices (SLA?)

Easy prioritization Cannot prioritize national vs. external claims

Easy to introduce new features (e.g. HD) Difficult to introduce new features

Easy implementation of gateways Difficult (distributed) implementation of gateways

Easy monitoring, management & reporting Distributed monitoring, management & reporting

- Interdomain provisioning protocol must be designed

Can be resilient and scalable (more expensive) Resilient and scalable

High quality service Quality?

Expensive (200-250kEuro) Cheap, but requires 2-3x more human resources

Architecture: central resource


Architecture: shared resource


Activity A3 / GN2 proposal II.


• For both implementations:

• Free gatekeeper (H.323) and registrar (SIP)

services

• Central reservation website (localised)

• Federated AAI

• Federated European-scale directory

• Standardised video codecs: H.261, H.263 and

H.264

• Gateways (e.g. ISDN, VRVS/EVO, etc.)

• Data collaboration

• API based MCU control

• . . .

Federated directory


European level VC support


• Implementation of support:

• Hierarchical (European, national, institutional

level)

• NRENs: round robin basis (see e.g. GN2 PERT)

• Important: GDS, coordinating between NREN

support groups

• Operational model to be worked out…

GN2 Y4 proposal III.


• Preliminary proposal:

• Presented at GN2 Y4 planning meeting (2nd

April)

• Draft work items specified

• Option A (shared) and option B (central):

• Partners: CESNET, CSC, GRNET, NIIF,

REDIRIS, SWITCH (informal survey)

• Manpower bids: 6MM

• Very low/limited motivation and contribution

Resource Central Shared

Manpower requirement 28MM 38MM

Operation cost per year 12MM 24MM

Equipment budget 150kEuro (MCU)

servers

GN2 Y4 proposal IV.


• Proposal refinement:

• In progress… based on feedback (GN2)

• Central resource was chosen (human resources)

• Budget: 200-250kEuro (vendor offers)

• Work items finalised

• Available for contribution and comments/ideas

• Reduce complexity, and minimise human

resource needs

• Decision should be taken: continue or not

• Provide official feedback:

• Work item participation

• Manpower bids

GN2 Y4 proposal V. - Options


• Options to chose:

• Proposal as it is… (+MCU, +support,

+reservation, +dir, …)

• Reduced 1 (-MCU, +support, -reservation, +dir,

…)

• Cancel proposal

• . . .


Thank you for your attention

?http://www.terena.org/activities/tf-vss/

Questions/feedbacks: [email protected]

http://www.terena.org/activities/tf-vss/

mailto:[email protected]

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