Cisco ONS 15454 SDH Specifications download pdf (Page 275)

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Cisco ONS 15454 SDH Installation and Operations Guide, R3.3

May 2002

Chapter 6 Circuits and Tunnels

Cross-Connect Card Capacities

Step 4 On the Edit Circuit window, click the Show Detailed Map box at the bottom of the window. A detailed

circuit graphic showing source and destination ports is displayed.

Step 5 On the detailed circuit map right-click the circuit STM-N port (the square on the left or right of the

source node icon) and choose Edit Path Trace from the shortcut menu.

Note The STM-N port must be on a receive-only card listed in Table 6-2 on page 6-19. If not, the Edit

Path Trace menu item will not display.

Step 6 On the Circuit Path Trace window, enable the path trace expected string by choosing Auto or Manual

from the Path Trace Mode drop-down menu:

• Auto—Uses the first string received from the port at the other end as the baseline string. An alarm

is raised when a string that differs from the baseline is received. For STM-N ports, Auto is

recommended, since Manual mode requires you to trace the circuit on the Edit Circuit window to

determine whether the port is the source or destination path.

• Manual—Uses the Current Expected String field as the baseline string. An alarm is raised when a

string that differs from the Current Expected String is received.

Step 7 If you set Path Trace Mode to Manual, enter the string that the STM-N port should receive in the New

Expected String field. To do this, trace the circuit path on the detailed circuit window to determine

whether the port is in the circuit source or destination path, then set the New Expected String to the string

transmitted by the circuit source or destination. If you set Path Trace Mode to Auto, ignore the New

Expected String field.

Note A screen will appear with 16 byte and 64 byte buttons. The software automatically selects

the appropriate choice. SDH Software R3.3 does not support changes to these fields.

Step 8 The Disable AIS on TIM-P checkbox cannot be selected.

Note SDH Software R3.3 does not support changes to the Disable AIS on TIM-P field. The

STM-N path trace monitoring does not generate AIS on TIM-P.

Step 9 Click Apply, then click Close.

6.9 Cross-Connect Card Capacities

The XC10G is required to operate the ONS 15454 SDH. XC10Gs support high-order cross-connections

(VC4 and above). The XC10G does not support any low-order circuits such as VC-11, VC-12, and VC3.

The XC10G card works with the TCC-I card to maintain connections and set up cross-connects within

the node. You can create circuits using the Cisco Transport Controller (CTC). The XC10G card cross

connects standard VC4, VC4-4c, VC4-16c, and VC4-64c signal rates and the non-standard VC4-2c,

VC4-3c, and VC4-8c signal rates providing a maximum of 384 x 384 VC4 cross-connections. Any VC4

on any port can be connected to any other port, meaning that the VC cross-connection capacity is

non-blocking. The XC10G card manages up to 192 bidirectional VC4 cross-connects.

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Cisco ONS 15454 SDH Specifications Page 275