Troubleshooting 100G Links Using PCS Lanes

On , in Client Side, Errors & Alarms, Ethernet, General, by Tony Goodchild

Understanding the condition of the PCS lanes is crucial to troubleshooting 100G links during network deployments. At the most basic level understanding that there are errors at the PCS indicates that the root cause of the fault lies with the physical signalling and not at the MAC layer or any of the high network layers […]

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Understanding 100G OTN Error & Alarm Conditions – LOFLANE

On , in All Posts, Client Side, Errors & Alarms, OTN, by Tony Goodchild

At 100G speeds OTN uses a multilane implementation to achieve the OTU4 client interface. Using these multilane interfaces can present a number of challenges and new defect conditions have been defined to support these. LOFLANE is a loss of frame defect on a logical lane. In some ways it is similar to Loss Of Block Lock […]

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How does Skew impact latency measurement?

On , in All Posts, Client Side, Ethernet, General, by Tony Goodchild

Now more than ever latency is a key network quality metric, with financial institutions and other Enterprise customers demanding absolutely minimal latency from their service provider. With Skew being an inherent part of a 100G Ethernet link, field engineers starting to roll out these services commonly ask how will Skew levels affect the latency measurements […]

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