Patent ID: 9520962
Filing Date: 2016-12-13
CPC Classification: H04J,H04L

Claim Text:
1. A method, comprising: receiving, at an optical transport equipment in an optical network, a notification indicating a planned interruption in the optical network, wherein the notification includes a time of the planned interruption and a loss of signal duration associated with the planned interruption; identifying one or more optical interfaces of the optical transport equipment coupled to one or more optical links affected by the planned interruption; sending, by the identified one or more optical interfaces of the optical transport equipment during a time period derived from the time of the planned interruption and the loss of signal duration and responsive to receiving the notification, dummy data blocks to one or more routers connected to the one or more optical interfaces such that the one or more routers do not perceive any communication interruption during the planned interruption and do not engage in a re-routing related to the planned interruption; and buffering, by the one or more optical interfaces during the time period, data to be transmitted on the one or more optical links affected by the planned interruption.