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Cisco ONS 15310-CL and Cisco ONS 15310-MA Troubleshooting Guide, Release 9.0

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Chapter 2 Alarm Troubleshooting

Frequently Used Alarm Troubleshooting Procedures

In the Circuits on Span dialog box, the switch state for all circuits is Manual. Unprotected circuits do

not switch.

Initiate a Lockout for All Circuits on a Protect Path Protection Span

This procedure prevents all circuits in a UPSR working span from switching to the protect span. It is

used to keep traffic off cards that originate or terminate UPSR circuits.

Caution The Lock Out of Protect command overrides normal protective switching mechanisms.

Step 1 Log into a node on the network. If you are already logged in, continue with Step 2.

Step 2 Right-click a network span and choose Circuits.

The Circuits on Span dialog box shows the UPSR circuits, including circuit names, locations, and a color

code showing which circuits are active on the span.

Step 3 Click the Perform Path Protection span switching field.

Step 4 Choose Lock Out of Protect from the drop-down list.

Step 5 Click Apply.

Step 6 In the Confirm Path Protection Switch dialog box, click Yes.

Step 7 In the Protection Switch Result dialog box, click OK.

In the Circuits on Span dialog box, the switch state for all circuits is FORCE. Unprotected circuits do

not switch.

Clear an External Switching Command on a Path Protection Span

Note If the ports terminating a span are configured as revertive, clearing a Force or Manual switch to protect

moves traffic back to the working port. If ports are not configured as nonrevertive, clearing a Force

switch to protect does not move traffic back.

Step 1 Log into a node on the network. If you are already logged in, continue with Step 2.

Step 2 Right-click a network span and choose Circuits.

The Circuits on Span dialog box shows the UPSR circuits, including circuit names, locations, and a color

code showing which circuits are active on the span.

Step 3 Initiate a Force switch for all circuits on the span:

a. Click the Perform Path Protection span switching field.

b. Choose Clear from the drop-down list.

c. Click Apply.

d. In the Confirm Path Protection Switch dialog box, click Yes .

e. In the Protection Switch Result dialog box, click OK.

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Cisco 15310-MA Guida alla Risoluzione dei Problemi Pagina 291