ERPS node states
Table 15: ERPS states
State | Description |
|---|---|
Init | State for a non-interconnection node that has less than two ERPS ring member ports or for an interconnection node that does not have ERPS ring member ports. |
Idle | Stable state when all non-RPL links are available. In this state, the owner node blocks the RPL port and periodically sends NR-RB packets. The neighbor node blocks the RPL port. All nodes enter the idle state after the owner node enters the idle state. |
Protection | State when a non-RPL link is faulty. In this state, the RPL link is unblocked to forward traffic. All nodes enter the protection state after a node enters the protection state. |
MS | State when traffic paths are manually switched. All nodes enter the MS state after a node is configured with the MS mode. |
FS | State when traffic paths are forcibly switched. All nodes enter the FS state after a node is configured with the FS mode. |
Pending | Transient state between the previous states. |