SHARED PROTECTION IN OPTICAL NETWORKS

摘要

A device for shared protection in an optical network may include a processor circuit. The processor circuit may be configured to transmit optical signals over an optical network port to a first set of optical network units (ONUs), receive an indication that an optical line terminal (OLT) is unavailable to service a second set of ONUs, transition to a protection operation mode from a normal operation mode in response to indication, and transmit optical signals over the optical network port to the first and second set of ONUs. The optical signals may include resource allocation information for at least some of the first and second set of ONUs. The device may operate as a working OLT for the first set of ONUs when in the normal operation mode. The device may operate as the working OLT for the first and second set of ONUs when in the protection operation mode.

主权项

1. A device, comprising:
at least one processor circuit configured to:
transmit first optical signals over an optical network port to a first set of optical network units (ONUs) via a first optical distribution network (ODN), wherein the device operates as a working optical line terminal (OLT) for the first set of ONUs;receive a first indication that an optical line terminal (OLT) is unavailable to service a second set of ONUs;transition to a protection operation mode from a normal operation mode in response to receiving the first indication, wherein the device operates as the working OLT for the first set of ONUs and the second set of ONUs when in the protection operation mode; andtransmit second optical signals over the optical network port to the first set of ONUs via the first ODN and to the second set of ONUs via a second ODN, the second optical signals comprising resource allocation information for at least some of the first set of ONUs and the second set of ONUs.