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Benchmarking Terminology for Protection Performance

Takumi Kimura

Jerry Perser

55th IETF

Atlanta, USA

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54th IETF - Yokohama

• Takumi Presented automatic protection system – SONET/SDH rings

– RPR

• Takumi was asked to refine his proposal

OADMLight path

Protection

Protection trigger

OADMOADM

SenderRouter Receiver

Router

System Under Test (SUT)

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55th IETF - Atlanta

• Draft submitted– http://www.ietf.org/internet-drafts/draft-kimura-

protection-term-00.txt

– Draft 00 contains non technology-specific parts.

• technology-specific parts (SONET/SDH APS, etc.) will be added

• Still focused on SONET/SDH rings– Should we focus on measuring sub-IP protection

schemes on IP performance?

– Include MPLS, Spanning Tree, etc…

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Several Advantages

• Not limited to SONET/SDH APS

– Adopt to MPLS by using a different trigger

• Measures the effect of failover on IP

– Other drafts concentrate on control plane only

• Observes more than packet loss

Dropped packets

Induced delay

Out-of-order packets

Duplicate packets

123 45 67

123456 4

1267

1234

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Motivation

• Different Protection technologies

– Automatic Protection Switching (APS) for SONET/SDH

– Resilient Packet Ring (RPR) for Ethernet

– Fast Reroute for Multi-Protocol Label Switching (MPLS)

• Recovery timing in IP-layer is different from that in sub-IP layer.

• Standard Testing methodology to compare implementation’s performance

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Goals

• Set focus on ?– SDH performance, or sub IP technologies

• Incorporate different topologies

• Incorporate different protection types

• Add technology-specific part (especially, SONET/SDH APS) to the draft

• Move draft from Individual work to BMWG working draft

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Finished

• Takumi Kimura

– Phone: +81 422 59 3026

– EMail: takumi.kimura@lab.ntt.co.jp

• Jerry Perser

– Phone: + 1 818 676 2300

– EMail: jerry.perser@spirentcom.com