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AJC End-to-End Ethernet Private Line (EPL) Test Results - September 2009

This document presents comprehensive results from the AJC GigE Ethernet Private Line (EPL) tests conducted in September 2009. It includes background on EPL, test configurations, and performance metrics according to RFC 2544 standards. The results cover various frame sizes, including nominal frames (64, 128, 512, 1024, 1218, and 1518 bytes) and Jumbo frames (9224 bytes). Key metrics analyzed include throughput, latency, frame loss, and recovery tests, highlighting AJC's reliable point-to-point bandwidth offerings from cable stations.

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AJC End-to-End Ethernet Private Line (EPL) Test Results - September 2009

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  1. AJC - End To End Ethernet Ethernet Private Line (EPL) – Test Results September 2009

  2. AJC GigE Ethernet Private Line (EPL) Tests • EPL Background • Test Configuration • RFC 2544 Tests of nominal frame sizes (Throughput, Latency, Frame Loss, Back to Back Frames, Recovery tests for 64, 128, 512, 1024, 1218 & 1518 Bytes) • RFC 2544 Tests of Jumbo Frames (9224 Bytes) • Incremental VC4’s (VC4-Nv where N = 1 to 7)

  3. Ethernet Private Line (EPL) Background • The diagram below is an extract from ITU-T Rec G.8011.1 (01/2009) “Ethernet Private Line Service”. • AJC EPL is point to point fixed bandwidth consistent with relevant recommendations. • AJC EPL is provided from AJC cable station to AJC cable station (UNI-N below) and AJC can also arrange the access.

  4. AJC GigE EPL Test Configuration • GigE EPL tests have been done Aust.-Japan (AJC) and Aust.-US West Coast (AJC & Pacific Crossing) using the setup below.

  5. Ethernet Test Procedures - RFC 2544 • Some of the results obtained for nominal frames are below. Paddington to Shima: Frame Loss = ((Tx-Rx)/Tx) = zero for Throughput up to 99.99% for the nominal byte sizes. Paddington to Shima – Throughputbytes/sec increase at expected rate as frame size increases given the 20 byte overhead percentage is less.

  6. RFC 2544 - Jumbo Frames (9244 Bytes) • RFC 2544 describes test procedures for Ethernet. Some of the results obtained for Jumbo frame are below. Paddington to Shima: Frame Loss = ((Tx-Rx)/Tx) = zero for Throughput up to 99.99% for the single 9224 byte size. Paddington to Shima – Throughput frames/sec near 100% as expect for 9224 byte frame as 20 byte overhead a small percentage.

  7. VC4 =1 VC4 = 2 VC4 = 3 VC4 = 4 Throughput Granularity (VC4’s) • GigE on SDH = VC4-nV meaning 1 to 7 virtually concatenated VC4’s. Increasing throughput visible in results below/next page

  8. VC4 = 5 VC4=6 VC4 = 7 Throughput Granularity (VC4’s) • GigE on SDH = VC4-nV meaning 1 to 7 virtually concatenated VC4’s. Increasing throughput visible in results below/previous page

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