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Cisco Prime Network 4.0 User Guide
OL-29343-01
Chapter 20 Monitoring MToP Services
Configuring Automatic Protection Switching (APS )
Configuring Automatic Protection Switching (APS )
APS refers to the mechanism of using a protect interface in the SONET network as the backup for
working interface. When the working interface fails, the protect interface quickly assumes its traffic
load. The working interfaces and their protect interfaces make up an APS group. SONET APS offers
recovery from fiber (external) or equipment (interface and internal) failures at the SONET line layer.
The table below lists the APS configuration commands and navigation for the commands. Additional
commands may be available for your devices. New commands are often provided in Prime Network
Device Packages, which can be downloaded from the Prime Network software download site. For more
information on how to download and install DPs and enable new commands, see the information on
“Adding Additional Device (VNE) support” in the Cisco Prime Network 4.0 Administrator Guide.
To run the these commands, the software on the network element must support the technology. Before
executing any commands, you can preview them and view the results. For details on the software
versions Prime Network supports for the listed supported network elements, see Cisco Prime Network
4.0 Supported Cisco VNEs.
Configure Controller Physical Inventory > Chassis >
Slot > Subslot > right-click on
SONET interface > Commands >
Configuration > SONET >
After configuring SONET/SDH type,
configure the controller using
additional parameters, like specifying
the clock source.
Configure AU3 Physical Inventory > Chassis >
Slot > Subslot > click on SONET-
interface > right-click on a
SONET/SDH HOP > Commands >
Configuration >
Using these commands, you can
configure the parameters for the SDH
channelization.
When you are configuring the
channelized E1/T1 line card for SDH
framing, configure AU-3 or AU-4 as the
mode of operation.
For SDH, both AU-3 and AU-4 AUG
mappings are supported.
Delete AU3
Configure AU4
Delete AU4 If the AUG mapping is configured to be
AU-4, then the following mapping will
be used:
TUG-3 <--> AU-4 <--> AUG
If the mapping is configured to be
AU-3, then the following mapping will
be used:
AU-3 <--> AUG
Configure TUG3
Delete TUG3
Physical Inventory > Chassis >
Slot > Subslot > click on SONET-
interface > double-click on a
SONET/SDH High Order Path
(HOP) > right-click LOP >
Commands > Configuration >
Delete STS
Configure STS
Physical Inventory > Chassis >
Slot > Subslot > click on SONET-
interface > right-click on a
SONET/SDH HOP > Commands >
Configuration >
Using these commands, you can
configure the STS path attributes for the
SONET channelization mode.
Command Navigation Description