Chapter 3 • Network management
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profiles. Profiles are generally organized by function or feature,
and can be of two types: shared and unique.
• Shared profiles can contain such parameters as resource
allocations and tuning parameters, which are often shareable.
Operators can create shared profiles and manage them
independently of any particular network component.
• Unique profiles contain parameters, such as interface
addresses, whose values cannot be shared because they must
be specific to a component.
Most shared profiles are optional profiles. Profiles containing
parameters that must be configured on a device are considered
mandatory profiles. Profiles containing critical values that should
be changed only by a network administrator are considered
restricted profiles. A network administrator can determine which
profile types are considered restricted.
Because the large number of optional features can make even the
management of profiles tedious, NMSS provides an even higher
level of conceptual grouping called the profile group. A profile
group is simply a collection of shared profiles that can be
associated with a component as a set. A remote site component
can be associated with one core profile group, which is assigned
by a network administrator, and optional customer profile groups,
which can contain profiles that are not restricted.
Software configuration
management
NMSS supports the ability to remotely install and upgrade
software images on both gateway and remote site components.
Software profiles are used to manage software versions. Vision
distributes software files to gateway and modem components
using the same mechanisms used to distribute configuration files.
Software images for modem components are multicast via SDL.
Configuration interfaces
NMSS provides a number of interfaces through which network
configuration can be defined and maintained.
The NMSS graphical user interface (GUI) is the interactive
interface that operators use to perform initial network definition
and the creation of profiles, users, and hub components, as well as
other administrative tasks. The GUI provides full manual control
of all configuration parameters and system settings, subject to
configured operator access policies and restrictions. HX gateway
personnel can use the GUI, as can customers at remote sites and
customer support agents.
NMSS also has a provisioning interface intended for batch-mode
definitions of remote site components. The provisioning tool
extracts a list of sites to be provisioned from an extensible
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