ADC Telecommunications, Inc.
118 CHAPTER 7: PACKET OVER SONET ADMINISTRATION
■Photonic Layer — Converts the electrical STS-n signal to an optical
signal, referred to as Optical Carrier. This OC-n signal is then
transmitted over the circuit.
Each layer consists of its own overhead bytes. This overhead provides the
powerful management and fault-tolerance capabilities inherent in a SONET
network.
SONET overhead also provides for various alarms and error messages —
known as defects — to be reported. Alarms allow for the reporting of
network failures; error messages report incomplete failures that may
compromise data transmission.
SONET interface administration on the Cuda 12000 includes:
■Displaying POS Interface Information
■Disabling and Enabling Interfaces
■Viewing POS Interface Packet Statistics
■Viewing SONET Line-Layer Information
■Viewing SONET Path Layer Information
■Viewing and Configuration Section Layer Administration
■Configuring and Viewing SONET Alarms