6-2
Catalyst2950 and Catalyst2955 Switch Software Configuration Guide
78-11380-10
Chapter6 Configuring IE2100 CNS Agents
Understanding IE2100Series Configuration Registrar Software
Figure6-1 Configuration Registrar Architectural Overview
These sections contain this conceptual information:
CNS Configuration Service, page 6-2
CNS Event Service, page 6-3
What You Should Know About ConfigID, DeviceID, and Host Name, page 6-3
CNS Configuration Service
The CNS Configuration Service is the core component of the C onfigurati on Registra r. It consists of a
configuration server that works with CNS configuration agents located on the switch. The CNS
Configuration Service delivers device and service configurations to the switch for initial configuration
and mass reconfiguration by logical groups. Switches receive their initial configuration from the CNS
Configuration Service when they start up on the network for the first time.
The CNS Configuration Service uses the CNS Event Service to send and rec eive configurati on c hange
events and to send success and failure notifications.
The configuration server is a web server that uses configuration templates and the device-specific
configuration information stored in the embedded (standalone m ode) or remote (server mode) directory.
Configuration templates are text files containing static configuration information in the form of CLI
commands. In the templates, variables are specified using lightweight directory access protocol (LDAP)
URLs that reference the device-specific configuration information stored in a directory.
The configuration agent can perform a syntax check on received configuration files and publish events
to indicate the success or failure of the syntax check. The configuration agent can either apply
configurations immediately or delay the application until re cei pt o f a synchr oniz a tion event from the
configuration server.
Configuration
registrar
Service provider network
Order entry
configuration management
Data service
directory
Configuration server
Event service
Web-based
user interface
71444