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Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Software Configuration Guide
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Chapter 19 Configuring the 1-Port Channelized OC-3/STM-1 SPA and 1-Port Channelized OC-12/STM-4 SPA
Configuration Tasks
Note Before Cisco IOS XE Release 3.1S, APS (Automatic Protection Switching) was not supported for POS
SPAs. The Cisco IOS XE Release 3.1S implements 1+1 bidirectional SR APS feature support for POS
SPAs. Hence, 1+1 bidirectional SR APS feature will be supported in Cisco IOS XE Release 3.1S and
later releases for POS SPAs.
Configuration Tasks
This section describes how to configure the 1-Port Channelized OC-3/STM-1 SPA and 1-Port
Channelized OC-12/STM-4 SPA on the Cisco ASR 1000 Series Router, including required and optional
configurations. It includes information about configuring the SPAs in either synchronous optical
network (SONET) or synchronous digital hierarchy (SDH) framing modes.
Note In Cisco IOS XE Release 2.6, only SONET framing is supported on the1-Port Channelized
OC-12/STM-4 SPA.
Note The SDH mode is supported on 1-Port Channelized OC-12/STM-4 SPA from Cisco IOS XE Release
3.1.2 onwards.
It includes the following topics:
• Specifying the Physical Address for Controller and Interface Configuration, page 19-2
• Required Configuration Tasks, page 19-3
• Optional Configurations, page 19-15
• Saving the Configuration, page 19-25
Specifying the Physical Address for Controller and Interface Configuration
This section describes how to specify the physical location of the SIP, SPAs, and interfaces on the 1-Port
Channelized OC-3/STM-1 SPA and 1-Port Channelized OC-12/STM-4 SPA.
To specify the physical address for controller or interface configuration, use the interface and controller
sonet commands, where:
• slot—Specifies the chassis slot number in the Cisco ASR 1000 Series Router where the SIP is
installed.
• subslot—Specifies the slot of the SIP where the SPA is installed.
• port—Specifies the SONET port number. There is only one port on a 1-Port Channelized
OC-3/STM-1 SPA and 1-Port Channelized OC-12/STM-4 SPA, therefore the port number is always
0.
For example, if the 1-Port Channelized OC-3/STM-1 SPA or 1-Port Channelized OC-12/STM-4 SPA is
installed in subslot 0 of a Cisco ASR 1000 SIP in slot 3 of the chassis, the controller configuration
address is specified as controller sonet 3/0/0.
For channelized SPA configuration, the interface address format is: slot/subslot/port:channel-group,
where: