Interpret the Enterprise-Specific SONET Automatic
Protection Switching MIB

The SONET Automatic Protection Switching (APS) Management MIB monitors any SONET interface that participates in APS. APS is used by SONET add/drop multiplexers (ADMs) to protect against circuit failures. The JUNOS implementation of APS allows you to protect against circuit failures between an ADM and one or more routers, and between multiple interfaces in the same router. When a circuit or router fails, a backup immediately takes over. For information about APS traps, see SONET Automatic Protection Switching Version 2 Traps. For more information about APS, see the JUNOS Internet Software Guide:Network Interfaces and Class of Service.

The JUNOS software supports only read access, 1+1 architecture, bidirectional, revertive, and non-revertive mode.

For a downloadable version of this MIB, see www.juniper.net/techpubs/
software/junos/junos60/swconfig60-net-mgmt/html/mib-jnx-sonetaps.txt.

This chapter discusses the following topics:

• apsConfigTable
• apsStatusTable
• apsChanConfigTable
• apsChanStatusTable