Cisco 15327 - Manual (Page 263)

17-11
Ethernet Card Software Feature and Configuration Guide, R7.2
Chapter 17 Configuring Cisco Proprietary Resilient Packet Ring
Configuring CTC Circuits for Cisco Proprietary RPR
Step 4 Click Next.
The Circuit Attributes page appears.
Step 5 Type a circuit name in the Name field.
Step 6 Select the relevant size of the circuit from the Size drop-down list, and the appropriate state from the
State list.
Step 7 Verify that the signal degrade (SD) threshold is either set to 1E-6 (default) or in the 1E-6 to 1E-9 range
in the SD threshold field.
a. If the SD threshold is the default (1E-6) or within the acceptable range, proceed to Step 8 .
b. If the SD threshold is not the default (1E-6) or within the acceptable range, select 1E-6 or a threshold
within the acceptable range from the drop-down list.
Note Lower SD thresholds increase the speed of CTC convergence, but also increase the possibility of
interface flapping (repeatedly enabling and disabling) in some situations.
Step 8 Click Next.
The Source page appears.
Step 9 Select Node 1 as the source node from the node drop-down list.
Step 10 Select the ML-Series card from the Slot drop-down list, and choose 0 (POS) from the Port drop-down
list.
Step 11 Click Next.
The Destination page appears.
Step 12 Select Node 2 as the destination node from the Node drop-down list.
Step 13 Select the ML-Series card from the Slot drop-down list, and choose 1 (POS) from the Port drop-down
list.
Step 14 Click Next.
The Circuit Routing Preferences page appears.
Step 15 Uncheck the Fully Protected Path check box.
Step 16 Click Next.
The Circuit Constraints for Automatic Routing page appears.
Step 17 Click the Node 1 icon to select it and click Next.
The Route Review/Edit page appears.
Step 18 Click Finish.
You have now completed the initial circuit.
Note A TPTFAIL alarm might appear on CTC when the circuit is created. This alarm will disappear after the
POS ports are enabled during the
“Assigning the ML-Series Card POS Ports to the SPR Interface”
procedure on page 17-14 .
Step 19 Build the second circuit between POS 0 on Node 2 and POS 1 on Node 3. Use the same procedure
described in Steps
1 through 18 , but substitute Node 2 for Node 1 and Node 3 for Node 2.