Script Server - Cisco ASR 5000 series Product Overview

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Table of Contents

▀ WEM Architecture

The Bulk Statistics Server parses collected statistics and stores the information in the PostgreSQL database. If XML file

generation and transfer is required, this element generates the XML output and can send it to a Northbound NMS or an

alternate bulk statistics server for further processing.

Additionally, if archiving of the collected statistics is desired, the Bulk Statistics server writes the files to an alternative

directory on the server. A specific directory can be configured by the administrative user or the default directory can be

used. Regardless, the directory can be on a local filesystem or on an NFS-mounted filesystem on the WEM server.

Script Server

The WEM supports the ability to configure the properties for alarms. One of the properties that can be configured is

specifying a script that can be executed upon receipt of that alarm. The Script Server process is responsible for

executing the specified script.

Upon receipt of the alarm, the WEM Server FCAPS Support function passes the name of the script to execute and the

trap logged time to the Script Server. An acknowledgement is sent and the script is executed by the Script Server. In the

event, an error is experienced while executing the script, the Script Server generates an SNMP trap.

PostgreSQL Database Server

The PostgreSQL Database consists of multiple databases maintaining information pertaining to the following WEM

Configuration: This database contains tables which maintain configuration information for user details,

topology for maps and manageable systems.

Trap: This database contains tables which maintain SNMP trap configuration information and all the received

MIB: This database contains all the information required to translate SNMP Object identifiers to proper MIB

names and their types as given in the MIB file.

Audit Trail: This database contains table that maintains the configuration trail including the following:

Bulk Statistics: This database contains various tables containing counter values periodically received from the

system via the File Transfer Protocol (FTP).

▄ Cisco ASR 5000 Series Product Overview

Configuration performed on each system through the WEM

Configuration done through the system's CLI (this is known via the CORBA notification service)

The addition/deletion of a new system in the managed system list

Web Element Manager Overview