Wem Architecture - Cisco ASR 5000 series Product Overview

Web Element Manager Overview

WEM Architecture

The WEM architecture consists of the following components:
Host Filesystem
Apache Web Server
WEM Server FCAPS Support
WEM Process Monitor
Bulk Statistics Server
Script Server
PostgreSQL Database Server
WEM Logger
Host Filesystem
Running on the fault-tolerant Sun Solaris operating system, the WEM uses the native filesystem for such things as
creating and writing to log files, storing alarm and bulk statistic-related information, and configuration file management.
Apache Web Server
Remote clients interface with the WEM by establishing session with the server using the Hyper Text Transport Protocol
(HTTP). The session is hosted by the Apache Web Server which launches a Java applet providing a graphical user
interface for managing the system. When HTTPS is mentioned in the URL instead of HTTP, secure connection is
established between the WEM client and WEM server. The Apache Web Server is also used to execute Common
Gateway Interfaces (CGIs) invoked by the applet using CORBA/Internet Inter-ORB Protocol (IIOP).
WEM Server FCAPS Support
This component provides Fault, Configuration, Accounting, Performance, and Security (FCAPS) functionality.
Fault Management
Fault management consists of an event logging function wherein all alarms, warnings, and other faults can be
configured, reported, and acknowledged by network operations personnel.
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WEM Architecture ▀
Cisco ASR 5000 Series Product Overview ▄