SONET Controller Commands on the
Cisco ASR 9000 Series Router
This module provides command line interface (CLI) commands for configuring SONET operation, using
Layer 1 SONET transport technology, on the Cisco ASR 9000 Series Router.
The configuration of the SONET controller includes SONET Automatic Protection Switch (APS), which is
a feature offering recovery from fiber (external) or equipment (interface and internal) failures at the SONET
line layer. You must configure a SONET controller before you can configure a Packet-over-SONET/SDH
(POS) interface or a serial interface.
All SONET-related configurations of a SONET-based physical port are grouped under the SONET controller
configuration submode. The SONET path-related configuration commands are grouped under the SONET
path submode.
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ais-shut (SONET path), page 837
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clear counters sonet, page 853
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clock source (SONET), page 855
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Cisco ASR 9000 Series Aggregation Services Router Interface and Hardware Component Command Reference,
Release 5.3.x
833