Transition Networks
S4224 Web User Guide
33558 Rev. C
Page 205 of 669
Architecture
Select the linear protection switching architecture; either
1+1
protection switching or
1:1
protection
switching architecture.
1+1
:
This will create a 1+1 EPS. The linear 1+1 protection switching architecture
operates with either unidirectional or bidirectional switching. In a 1+1 architecture, a
protection transport entity is used to protect the normal traffic signal. At the head-end,
the bridge is permanent. Switching occurs only at the tail-end. 1+1 protection is often
provisioned as non-revertive operation.
1:1
:
This will create a 1:1 (bidirectional) EPS. The linear 1:1 protection switching architecture
operates with bidirectional switching. In a 1:1 architecture, a protection transport entity is used to
protect the normal traffic signal. At the head-end, the bridge is not established until a protection
switch is required. 1:1 protection is usually provisioned as revertive operation.
Note
: The architecture at each end of the protected domain must match. Bidirectional switching
always requires APS communication.
W Flow
Enter the working flow (W Flow) port for the EPS. See the 'Domain' parameter description above.
P Flow
Enter the protecting flow (P Flow) port for the EPS. See the 'Domain' parameter description above.
W SF MEP
Enter the working Signal Fail (SF) reporting MEP.
P SF MEP
Enter the protecting Signal Fail (SF) reporting MEP.
APS MEP
Enter the APS (Automatic Protection Switching) PDU handling MEP.
Alarm
Indicates the alarm status on the EPS. A red dot indicates active alarm and green indicates no active
alarms.
Buttons
Add New EPS
: Click to add a new EPS entry.
Save
: Click to save changes.
Reset
: Click to undo any changes made locally and revert to previously saved values.
