lqs – lightweight qos signalling

LQS – Lightweight QoS Signalling

Mehmet Ersü / Cornel Pampu

ICM N PG SP [ST/RC]27.8.2002

ICM templ-1-o-example.ppt 12/07/2001 © Siemens, 2001

NSIS and LQS History

(03/01) NSIS (Next Steps in Signalling) BOF in IETF #50 (08/01) In ‚Long-Term IETF Standardization Strategy‘ project

workshop with LoB‘s „Lightweight QoS Signalling“ has been detected as one of the Top 3 IP issues in ICM N

(10/01) Nokia initiated the new NSIS WG (10/01) Sabbatical project proposal “Lightweight QoS Signalling

for MM Scenarios“ accepted by Prof. Schulzrinne (11/01) A joint team started work on NSIS requirements draft with

limited resources from several projects and LoB‘s: Masa/NEC, MIND/RMR/Uni Ulm, SeQoMo/TU Berlin, CT IC, LoB U SE, PG SP RC, PG SP ST

(01/02) Siemens/NEC req. draft becomes WG item because of completeness, UMTS scenarios and a strong security chapter

(03/02) Successful presentation and discussion of the framework draft at IETF #53

(06/02) Start of the sabbatical project LQS (07/02) Acceptance of the 2nd FW draft, NSIS Threats, RSVP

Security Properties as WG items and Multicast Analysis as part of a WG item


Lightweight QoS Signalling for Mobile Multimedia Scenarios (LQS)

• Overall project theme: „Design of a technology independent Lightweight QoS Signalling protocol for access networks“

• Joint Project with members of CT, ICN and ICM together with Prof. Henning Schulzrinne

• In parallel to the joint activity in IETF WG NSIS (Next Steps In Signalling) with members from RMR, CT, ICM, NEC, TU Berlin, Univ. of Ulm

• Project Management: Mehmet Ersü (ICM N PG SP ST A 1)

• Technical Project Lead:Dr. Cornelia Kappler/Cornel Pampu (ICM N PG SP RC AP)


LQS Project Team

Core Team: – Technical Leadership and Guidance:

Prof. Schulzrinne (Columbia University, NY)– Hannes Tschofenig (CT IC 3)– Jochen Eisl (ICM N PG SP RC PC)– Xiaoming Fu (TU Berlin)

Review partner:– Robert Hancock (Roke Manor Research)

Other project members:– Hans-Peter Huth (CT IC 2)– Joachim Sokol (CT IC 2)– Changpeng Fan (ICM N PG SP RC AP)– Rudolf Brandner (ICN M SR 1)– Karl Schrodi (ICN WN CS FP 1)


LQS: Why are existing solutions insufficient?

inter-domain signaling

out-of-path signaling

signaling other than end-to-end

bi-directional signaling

mobility support

multicast support usually not needed

interworking with policy, security, TE, ...

ICM templ-1-o-example.ppt 12/07/2001 Page 9 © Siemens, 2001

LQS Milestones

Milestone 1: 27.6. • Requirements gathering and analysis based on

ICM N priorities• Analysis of the Protocol-Candidates

Milestone 2: 23.7. • Definition of the Scenarios • Design of the "very light" version (LQS kernel)

Milestone 3: 13.8. • Design of LQS-sub-packages with priorities

Milestone 4: 27.8.• Final Internet Draft(s)• White Paper: LQS Design Considerations


LQS: Where to use?

QoS Signalling

Configuration of middleboxes

Topology discovery

Measurement data collection

MPLS label distribution ACTIVE NETWORKS

…..


LQS: Why now? (I)

Signalling solution needed:

– In 3GPP for inter-domain signaling

– Between bandwidth-brokers

– In conjunction with mobility

IETF NSIS (Next Steps In Signaling) WG chartered in Nov. 2001

generates wide interest

– most active participants - mobility community (Siemens, NEC, Ericsson, Nokia, Alcatel)

– closely followed and supported by „RSVP inventors“


LQS: Why now? (II)

Siemens contribution to NSIS:

– Requirements I-D: Marcus Brunner (NEC) as the editor, 3 main contributors from Siemens

in I-D

– Framework I-D: Robert Hancock (RMR) as the editor– The only security contributions: Hannes Tschofenig

(CT) as the editor

– Analysis I-D: Xiaoming Fu (TU Berlin) contributor with SeQoMo results

=> Siemens solution for NSIS Protocol

– CASP (Cross Application Signaling Protocol)

– CASP QoS Client: A Per-Flow Resource Allocation Client for CASP

lqs – lightweight qos signalling

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