Monitor Circuits - Cisco ONS 15454 Reference Manual

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Circuits and Tunnels

11.8 Monitor Circuits

Monitor circuits are secondary circuits that monitor traffic on primary bidirectional circuits.

shows an example of a monitor circuit. At Node 1, a VT1.5 is dropped from Port 1 of an EC1-12 card.

To monitor the VT1.5 traffic, plug test equipment into Port 2 of the EC1-12 card and provision a monitor

circuit to Port 2. Circuit monitors are one-way. The monitor circuit in

received by Port 1 of the EC1-12 card.

VT1.5 Monitor

Monitor circuits cannot be used with Ethernet circuits.

11.9 Path Protection Circuits

Use the Edit Circuits window to change path protection selectors and switch protection paths

The XC-VXC-10G cross-connect card supports VT switching based on SF and SD bit error rate (BER)

thresholds. The XC10G and XCVT cross-connect cards do not support VT switching based on SF and

SD BER thresholds, and hence, in the UPSR Selectors tab, the SF BER Level and SD BER Level

columns display "N/A" for these cards.

In the UPSR Switch Counts subtab, you can:

VT1.5 Monitor Circuit Received at an EC1-12 Port

11-7). In the UPSR Selectors subtab in the Edit Circuits window, you can:

View the path protection circuit's working and protection paths.

Edit the reversion time.

Set the hold-off timer.

Edit the Signal Fail/Signal Degrade thresholds.

Change payload defect indication path (PDI-P) settings.

Perform maintenance switches on the circuit selector.

View switch counts for the selectors.

Cisco ONS 15454 Reference Manual, R7.0.1

11.8 11.8 Monitor Circuits

monitors VT1.5 traffic