Cisco Model D-PCG1000 PowerKEY CAS Gateway Referencia técnica
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Tearing Down Sessions Before
Deleting QAM Modulators
Deleting QAM Modulators
Overview
Introduction
Our engineers recommend that system operators who intend to delete a device in
the QAM-family of modulators should first tear down sessions related to that
device. If system operators delete a device in the QAM-family of modulators
without first tearing down its related sessions, system performance may be
impacted. The Digital Network Control System (DNCS) may waste valuable CPU
time trying to associate these QAM-related sessions with a modulator that no
longer exists on the system. A session without an associated QAM modulator
device is known as an orphaned session.
Note: This recommendation pertains only to those instances when a device in the
Note: This recommendation pertains only to those instances when a device in the
QAM-family of modulators is to be deleted. System operators do not have to first
tear down sessions when replacing a device.
Purpose
This bulletin serves to remind system operators to tear down sessions related to
any modulator before deleting that modulator.
Audience
This bulletin is written for system operators of the Digital Broadband Delivery
System (DBDS). Field service engineers who help system operators manage their
systems may also find the information in this bulletin to be useful.
Scope
This bulletin pertains to all sites that run System Release 1.5 (including service
packs) and later software.
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