ECTSECTP Test plan

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ECTS/ECTP Test plan

• Dae Young KIM
• dykim_at_ccl.cnu.ac.kr
• (Chungnam Nat'l Univ. South KOREA)

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Contents

• ECTS overview
• ECTP overview
• ECTP test plan

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ECTS Overview(1)
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ECTS Overview (2)

• Characteristics
• Various Group Transmission Mode
• Simplex, Duplex, N-plex
• Reliable / Unreliable / Semi-reliable
  Transmission
• QoS Selection
• Assumes network QoS (RSVP, DiffServ, )
• QoS value is defined by boundary (CHQ, OT, LQA)
• Selection by negotiation
• Group Membership Management
• AGI (Active Group Integrity)
• Session Management
• Setup/pause/resume/termination/join/leave

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ECTS Overview(3)

• Some Peculiar Service Primitives
• Session Setup
• creation/termination/join/leave/invitation
• Maintenance
• TC pause/resume/ report
• Ownership transfer
• NN Data Transfer
• Reliable/Unreliable Data Transmission
• Token give/get

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QoS Defined in ECTS(1)

• QoS Classes
• Performance
• Throughput/Delay/Delay Jitter
• reliability
• Corrupted/Lost error rate
• ordering
• no/local/causal/partial/total ordering
• miscellaneous
• protection/precedence
• QoS Value
• Defined with 3 number (CHQ, OT, LQA)

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QoS Negotiation in ECTS
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ECTP Overview

• ECTP Protocol Stack
• Six Parts of ECTP
• Simplex reliable(1), simplex QoS(2),
• Duplex reliable(3), duplex QoS(4)
• Nplex reliable(5), Nplex QoS(6)

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ECTP-Relationship between P1 P2
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Scalable ECTP

• Tree Structure for Control Message
• one TO(Top Owner),
• zero or more LO(Local Owner), LE(Leaf Entity)

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ECTP-Part1

• Simplex Reliable Multicast
• Tree configuration for scalability
• Window based flow control
• Selective ACK with bitmap
• Session Control
• Connection management
• Late join/Leave
• Tree membership maintenance

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ECTP-Part2

• QoS Negotiation
• In The Connection Setup Phase
• QoS Monitoring
• Throughput
• Loss rate
• Delay jitter
• QoS Maintenance
• Adjustment of data transmission rate
• Connection pause/resume/termination

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ECTP-2 Mechanism
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Connection Setup
Control Tree Configuration
Network QoS Setup (RSVP, DS)
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QoS Monitoring Maintenance
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ECTP QoS

• Which Is Better?

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ECTP local test environments
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ECTP testbed Test Plan

• JAPAN
• -APII Testbed
• Genkai
• /Hyeonhae

CNU
KOREA (APAN/KOREN)
8M 1G
KOREN-CNU peering
ETRI
KOREN-ETRI peering
6M
SINGAPORE (APII Testbed)
10M
EU (TEIN)
Others
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QA

• Thanks