UPSR - Unidirectional Path Switched Ring

•UPSR – Topology

•Normal Operation

UPSR - Unidirectional Path Switched Ring

•UPSR – Topology

•Protection Operation

BLSR – Bidirectional Line Switched Ring

•BLSR– Topology

•Normal Operation

BLSR – Bidirectional Line Switched Ring

•BLSR– Topology

•Protection Switching

Sonet Ring Detail – Protection Type

•New field “Protection”

 

 

Protection type inheritance

•The ring inherits the protection type.

•UPSR – Auto protection enhancement

•BLSR – Protection enhancement

•Transport container - Timeslot selection

•BLSR – Protection enhancement

•Transport container – Routing Table

 

•Transport container - Logical Content

•UPSR – Protection enhancement

•Logical Auto Routing

•BLSR – Protection enhancement

•Logical Auto Routing - Timeslot selection

•Impact Analyzer – UPSR and BLSR protection

•Impact Analyzer – BLSR protection