7-10
Cisco ONS 15530 Configuration Guide and Command Reference
78-14227-01, Cisco IOS Release 12.1(10)EV2
Chapter7 Configuring APS
Configuring Y-Cable Based Line Card Protection
Proper physical configuration of the system is critical to the operation of line card protection. For
detailed information on shelf configuration rules, refer to the Cisco ONS 15530 Planning and Design
Guide.
Configuring Y-Cable Based Line Card Protection
The following is an overview of the tasks required to configure line card protection:
Step 1 Determine the number of clients you need to support and which channels you will deploy to transport
the client data.
Step 2 Ensure that the OADM modules needed to support the deployed channels are installed in the shelf. (See
the “Considerations for Using Y-Cable Based Line Card Protection” section on page 7-9.)
Step 3 Ensure that the OADM modules are correctly interconnected with the external optical patch cables.
Step 4 In order to ensure separate paths to the OADM modules, shut down the unused wavepatch interfaces if
you are using splitter line cards.
Step 5 Configure the interfaces and the patch connections from the CLI.
Step 6 Configure y-cable protection from the CLI.
Y-cable protection on the Cisco ONS 15530 requires configuration on the CLI. To configure y-cable
protection, use the following commands, beginning in global configurat ion m od e:
Caution Do not configure y-cable protection with Sysplex CLO, Sysplex ETR, or ISC compatibility protocol
encapsulation, or with the OFC safety protocol.
Command Purpose
Step1 Switch(config)# redundancy
Switch(config-red)#
Enters redundancy configuration mode.
Step2 Switch(config-red)# associate groupname
Switch(config-red-aps)#
Specifies an APS group name and enters APS
configuration mode.
The group name is case sensitive.
Step3 Switch(config-red-aps)# aps working
transparent slot/subcard/port Configures the working path interface.
Step4 Switch(config-red-aps)# aps protection
transparent slot/subcard/port Configures the protection path interface.
Step5 Switch(config-red-aps)# aps y-cable Enables y-cable protection. The default state is no
y-cable protection (disabled).
Step6 Switch(config-red-aps)# aps enable Enables APS activity between the interfaces.