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OSN 9800 V100 Configuration Guide 03

This document introduces service configuration process for OSN 9800.
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Parameters: Creating LMSP/MC-LMSP Protection Groups

Parameters: Creating LMSP/MC-LMSP Protection Groups

This section describes the parameters for configuring LMSP/MC-LMSP on a per-NE basis.

Table 4-47 describes the parameters for configuring LMSP/MC-LMSP on a per-NE basis.

Table 4-47 Parameters for creating LMSP/MC-LMSP protection groups
Parameter Value Range Description

Protection Group ID

1-255

Example: 1

Sets the ID of the protection group of the local equipment.

Peer Protection Group ID

1-255

Example: 1

Specifies the protection group ID of the other dual-homing node.

Protocol Channel ID

1,2

Example: 1

Specifies the ID of the MCSP protocol channel that is used to communicate with the other dual-homing node.

NE Type

Working, Protection

Default value: Working

Specifies whether a dual-homing node is the working unit or protection unit.

Protection Group Type

1+1 Protection, 1:N Protection

Default value: 1+1 Protection

The protection type of a linear MSP group. This parameter must be consistent with that of the interconnected equipment.

NOTE:
When the protection group type is 1:1, the value of this parameter must be set to 1:N Protection.

Switching Mode

Single-Ended Switching, Dual-Ended Switching

Default value: Single-Ended Switching

The switching mode of a linear MSP group. The dual-ended switching is recommended. This parameter must be consistent with that of the interconnected equipment.

Revertive Mode

Non-Revertive, Revertive

Default value: Non-Revertive

Specifies whether the service is switched back to the working channel after the working channel is restored. This parameter must be consistent with that of the interconnected equipment.

After the working channel is restored, the service is switched back to the working channel if Revertive Mode is set to Revertive, and the service is still transmitted over the protection channel if Revertive Mode is set to Non-Revertive.

WTR Time (s)

6 to 720

Default value: 600

Sets the WTR time of a linear MSP group. This parameter must be consistent with that of the interconnected equipment.

It refers to the period taken to switch the service to the working channel after the working channel is restored. This setting helps prevent frequent switching events before the working channel becomes stable.

SD enable

Enabled, Disabled

Default value: Enabled

Whether to enable SD to serve as the MSP switching condition. Enabling SD to serve as the MSP switching condition can trigger the protection switching before the EXC alarm of the signal.

Protocol Type

New Protocol, Restructure Protocol

Default value: New Protocol

The type of MSP protocol.

  • New Protocol: Complies with ITU-T G.841 (10_1998), and does not support single-ended switching, dual-ended switching, or alarms indicating that switching modes of the interconnected equipment are inconsistent.
  • Restructure Protocol: Complies with ITU-T G.841 (10_1998). Restructure Protocol is optimized compared with New Protocol. Specifically, the last three bits of the K byte are added to indicate single-ended or dual-ended switching, and an alarm indicating that switching modes of the interconnected equipment are inconsistent is added. These changes are made to better comply with ITU-T G.841. In addition, protocol protection measures are optimized to make the protocol more stable. Restructure Protocol is recommended when the equipment is interconnected with other equipment.

A combination of the new protocol and the restructure protocol leads to an NE interconnection failure. Hence, ensure the same protocol type is used by the interconnected NEs.

Protocol Status

-

Displays the status of MS protocol.

SD/SF PRI Switching Tag

High priority, Low priority

Default value: High priority

The priority of the SD/SF as a switching condition. The high priority is recommended.

Switching Mode Indication

Indicated, Not indicated

Default value: Not indicated

Whether the switching mode is indicated. The indicated status is recommended.

Activation Status

Active, Inactive

Default value: Inactive

Sets the activation status.

Startup Flag

Start, Stop

Default value: Stop

Sets the protection group status.

A protection channel fault can trigger protection switching only when the value of this parameter is set to Start.

NOTE:

The value of this parameter can be set to Start only when Activation Status is set to Active.

Protection Unit

Working Unit, Protection Unit

Default value: Working Unit

Protection unit or working unit.

West Line

-

West protection unit and west working unit of a linear MS protection group.

West Switching Status

-

The switching status of the west line.

Protected Unit

-

Displays the board that is under protection.

Remote/Local End Indication

-

When the protection group is in Dual-Ended Switching mode, displays whether the switching request is from the remote end or the local end.

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Updated: 2019-09-05

Document ID: EDOC1100033663

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