Cisco Cisco Packet Data Interworking Function (PDIF)
Command Line Interface Overview
CLI Contexts ▀
Command Line Interface Reference, StarOS Release 18 ▄
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CLI Contexts
A context is a group of configuration parameters that apply to the ports, interfaces, and protocols supported by the
system. You can configure multiple contexts on the system, each of which resides as a separate, logically independent
instance on the same physical device. The CLI can host multiple contexts within a single physical device.
system. You can configure multiple contexts on the system, each of which resides as a separate, logically independent
instance on the same physical device. The CLI can host multiple contexts within a single physical device.
This allows wireless service providers to use the same system to support:
Different levels of service
Multiple wholesale or enterprise customers or customer groups
Different classes of customers based on defined Class of Service (CoS) parameters
IP address pools across multiple contexts, thus saving IP address allocation
Enhanced security
Each defined context operates independently from any other context(s) in the system. Each context contains its own CLI
instance, IP routing tables, access filters, compression methods, and other configured data.
instance, IP routing tables, access filters, compression methods, and other configured data.
By default, a single system-wide context called “local”, is used exclusively for the management of the system. Think of
the local context as the root directory of the system, since you can define and access all other contexts from this point.
You cannot delete the local context.
the local context as the root directory of the system, since you can define and access all other contexts from this point.
You cannot delete the local context.
From this location in the CLI, you can:
Create and configure other service contexts that contain different service configurations
Configure system-wide services such as CORBA and SNMP management interfaces, physical management
ports, system messages, and others
Important:
The system requires that you define at least one context in addition to the local context. This isolates
system management functions from application or service functions.
Administrative users add contexts through the Global Configuration Mode. A substantial advantage of configuring
numerous service contexts is that it allows operators to broadly distribute different subscribers across the system. This
greatly enhances the performance of the system and minimizes the loss of sessions should a failure occur.
numerous service contexts is that it allows operators to broadly distribute different subscribers across the system. This
greatly enhances the performance of the system and minimizes the loss of sessions should a failure occur.