User guide

Packet Over SONET Module Installation and User Guide B-5
Automatic Protection Switching Support
Standards Supported for APS
In addition to the MIB support described above, the Extreme Networks APS
implementation complies with the following standards:
• GR-253-CORE, Synchronous Optical Network (SONET) Transport Systems: Common
Generic Criteria, Bellcore, Issue 2, Revision 2, January 1999.
• ANSI T1.105.01-1998, Synchronous Optical Networks (SONET)—Automatic Protection
Switching, American National Standards Institute, 1998.
• ITU-T G.783 (04/97), Characteristics of Synchronous Digital Hierarchy (SDH) Equipment
Functional Blocks, April 1997.
MIBs Supported for APS
Because no standard MIBs are defined for managing the APS function, Extreme
Networks has defined and implemented an enterprise MIB that provides read-only
support (GET but not SET operations) for APS configuration parameters and status
information. Any of the parameters that can be set with the
config aps commands can
be accessed through using the MIB, and any of the status information displayed by the
show aps command can also be read using the MIB.
You can download the APS enterprise MIB from the Extreme Network World Wide Web
site at the following URL:
http://www.extremenetworks.com/support/documentation.asp