Patent ID: 9325501
Filing Date: 2016-04-26
CPC Classification: H04J,H04L

Claim Text:
1. A method to implement a 2-fiber shared protection ring with extra traffic on a STM-1/OC-3 interface, said method comprising: utilizing a MSSPRing/BLSR method for a SDH/SONET traffic protection: configuring the STM-1 interface, comprising the shared protection ring in a AU4/AU 3 mapping; configuring the STM-1/OC-3 shared protection ring to operate at a predetermined granularity; and protecting the traffic of the STM-1/OC-3 shared protection ring at the predetermined granularity, wherein the STM-1/OC-3 shared protection ring is configured for the predetermined granularity to fix a plurality of work and protect channels, a switching unit, a connection function and a squelching procedure for a protection mechanism, wherein the predetermined granularities are selected from a group comprising at least one of VC12, VC11, VC3, VC12-VC3 and VC11-VC3 for at least one of AU-4 mapping and AU-3 mapping, wherein the VC 12 granularity includes 1 to 31 TU 12 as work channels, 32 to 62 TU 12 as protect channels and 63rd TU 12 as Enhanced Non pre-emptible Unprotected Traffic (ENUT).