Procedure 5-31: Clear "Excessive Reserved Rate on RPR" condition

- Overview

This procedure is used to clear an Excessive Reserved Rate on RPR condition.

- Before you begin

Prior to performing this procedure:

  1. Refer to Before you begin and Required equipment in this chapter.

  2. Refer to Laser safety and Electrostatic discharge in Chapter 1, Safety.

Steps

Complete the following steps to clear an Excessive Reserved Rate on RPR condition.

 
1

From the WaveStar® CIT System View, click the Alarm List button and locate the Excessive Reserved Rate on RPR condition in the resulting alarm list and note the corresponding VCG AID.


2

From the System View, select View → Rings → Ring Map. Select the required RPR ring and click Select.

Result:

The RPR ring map information appears.


3

Observe the Total Reserved Rate for the ringlets and the provisioned Reserved Class A0 Bandwidth for the local VCG RPR spans.


4

Important!

The sum of all the provisioned VCG RPR span Reserved Class A Add Rates (Mb/s) around the ring has exceeded the link rate of the ring. (The link rate is approximately 48.384 Mb/s per STS-1 cross-connection to the VCG.)

Follow local procedures to either increase the link rate of the ring or decrease the provisioned VCG RPR span Reserved Class A Add Rate at one or more nodes in the ring.

If ...

Then ...

increasing the link rate of the ring,

Continue with Step 5.

decreasing the provisioned VCG RPR span Reserved Class A Add Rate at one or more nodes in the ring,

Proceed to Step 8.


5

From the System View, select Configuration → Cross-Connections to access the Cross-Connection Wizard and provision the additional cross-connection(s) to the required VCGs according to local procedures.


6

Important!

Each tributary cross-connected to a VCG must be Enabled in both the Input and Output Directions before it becomes an active member of the VCG.

From the System View, select Configuration → Equipment. Expand the required Ethernet circuit pack and VCG details. Select the required tributary being provisioned and click Select.

Provision the tributary parameters according to local procedures. Click Apply, read the warning message, then click Yes to execute the command.

Repeat this step for each tributary being enabled. Click Close to exit.


7

At each node in the RPR ring, log in to the node and repeat Step 5 and Step 6 to increase the link rate.

Reference:

Procedure 6-2: Connect Personal Computer (PC) and establish WaveStar® CIT session

STOP! End of Procedure.


8

From the System View, select Configuration → Equipment. Expand the required Ethernet circuit pack, select the required VCG being provisioned, and click Select.

Click the RPR Span tab and decrease the Reserved Class A Add Rate (Mb/sec) according to local procedures. Click Apply, read the warning message, then click Yes to execute the command.

If required, repeat this step for the other VCG. Click Close to exit.


9

If required at other nodes, log in to the node and repeat Step 8 to decrease the provisioned Reserved Class A Add Rate (Mb/sec).

Reference:

Procedure 6-2: Connect Personal Computer (PC) and establish WaveStar® CIT session

STOP! End of Procedure.


End of steps

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