Update – Troubleshooting transport link failure

8:56PM – I’m still on hold with the transport fiber provider’s support department while they investigate.  While on-hold I have manually moved the majority of subscriber traffic to a backup link for a partial service restoration.  Unfortunately, this backup link has about 5% the required capacity to carry the evening traffic load.  I’m working on ordering a temporary capacity increase on this circuit for the duration of this outage.
Most subscribers should have service restored, though speeds will be quite low for now.
More updates to follow.
Thanks, 
– Jacob