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Next Generation Infrastructure Program’s Optical Implementation Kicks Off

May 04, 2020, by Chris Wilkinson
Tags: Advanced Networking, Frontpage News, Internet2 Network, Layer 3 Services, Next Generation Infrastructure, Recent Posts, Regional Networks, Research & Education Networks

Internet2 is pleased to announce the first transitions of community traffic onto our new flex-grid optical platform as part of Internet2’s Next Generation Infrastructure (NGI) program. The first of these transitions will occur in the area surrounding Kansas City during the week of May 4, 2020.  

Based on an updated Ciena 6500 platform and ITU-T G.657.A1 and G.652.D compliant single-mode long-haul fiber, the upgraded optical infrastructure is being built to provide services at and above 400G on the nationwide long-haul network. 

A series of nightly optical maintenance windows is scheduled to begin at 00:01 Central Time on 5/5/2020 and end at 06:00 Central Time on 05/08/2020. During each progressive window, wavelength services surrounding Kansas City will be transitioned to the new system. This work will only affect optical wavelengths. The Layer3 infrastructure is expected to re-route traffic around any individual backbone circuits that are affected by the migration. There should be no perceived outage to Layer3 services, though traffic may shift onto alternate paths. Regional network operations centers (NOCs) will have received maintenance notifications with these specific timelines: 

Planned Date Backup Date  
05/05/2020 05/06/2020 Transition of waves passing through Kansas City
05/05/2020 05/06/2020 Transition of waves transiting through Kansas City - Goodland
05/07/2020 05/08/2020 Transition of waves transiting Kansas City - Tulsa
05/07/2020 05/08/2020 Transition of waves transiting Kansas City - St. Louis

While this work will incur a brief outage on all wavelengths that pass through the migrated segments, we have a high degree of confidence that the outage will be limited to the planned maintenance windows. The expectation is that each wavelength will incur one to two hours worth of downtime if all goes as anticipated. 

Staff will also be performing an initial shakedown event on an internal, non-service impacting wavelength prior to the live-traffic transitions; this is an effort to expose any issues ahead of time and allow us to make adjustments. Checkpoints have also been defined in the process that allow us to rollback the configuration, should there be any unexpected complications. 

The next phase of this work will center on Chicago and is expected to occur within the next 30 to 45 days.

Please send questions regarding the specifics of the migration to