User Manual

37
ERPS STATUS
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ERPS Ring
There are three rings supported on a device. Using the dropdown select to change the ERPS Rings.
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Basic Information
。 Ring Type
The type of the selected ERPS Ring shows “Major-ring”, “Sub-ring with virtual channel”, or
“Sub-ring without virtual channel”.
。 ERPS Status
The status of ERPS is “Enable” or “Disable” in the selected ERPS Ring.
。 Ring State
There are two states for ERPS Rings: Normal and Abnormal.
。 Node State
There are three states for ERPS Nodes: Initial, Idle, Pending, and Protection.
State
Description
Initial
The ERPS protocol is disabled in the selected ring.
Idle
The ERPS protocol is enabled in the selected ring and the ERPS ring is
under control by the RPL Owner.
Pending
The ERPS protocol is enabled in the selected ring. The ERPS ring is
recovery from Protection state and is waiting for the wtr timer expired.
Protection
The ERPS protocol is enabled in the selected ring but one of the links in
the ring is broken. The RPL changes to forward to keep the ring working.
。 ERPS Ring ID
The ID is the identity for the selected ERPS Ring.
。 R-APS Channel
This field shows the configured R-APS Channel.
。 Virtual Channel
This field shows the virtual channel of sub-ring. If the field shows “default” implies the virtual
channel follows the R-APS Channel.