Specifications

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System Management Software Configuration Guide for Cisco IE 2000U and Connected Grid Switches
Chapter 1 Overview
Features
Related Topics
Chapter 13, “Configuring System Message Logging”
SNMP
Simple Network Management Protocol (SNMP) is an application-layer protocol that provides a message
format for communication between managers and agents. The SNMP system consists of an SNMP
manager, an SNMP agent, and a MIB. The SNMP manager can be part of a network management system
(NMS) such as CiscoWorks. The agent and MIB reside on the switch. To configure SNMP on the switch,
you define the relationship between the manager and the agent.
The SNMP agent contains MIB variables whose values the SNMP manager can request or change. A
manager can get a value from an agent or store a value into the agent. The agent gathers data from the
MIB, the repository for information about device parameters and network data. The agent can also
respond to a manager’s requests to get or set data.
An agent can send unsolicited traps to the manager. Traps are messages alerting the SNMP manager to
a condition on the network. Traps can mean improper user authentication, restarts, link status (up or
down), MAC address tracking, closing of a TCP connection, loss of connection to a neighbor, or other
significant events.
Related Topics
Chapter 14, “Configuring SNMP”
Cisco IOS IP SLAs
Cisco IP SLAs is a part of Cisco IOS software that allows Cisco customers to analyze IP service levels
for IP applications and services by using active traffic monitoring—the generation of traffic in a
continuous, reliable, and predictable manner—for measuring network performance. With Cisco IOS IP
SLAs, service provider customers can measure and provide service level agreements, and enterprise
customers can verify service levels, verify outsourced service level agreements, and understand network
performance. Cisco IOS IP SLAs can perform network assessments, verify quality of service (QoS), ease
the deployment of new services, and assist with network troubleshooting.
Related Topics
Chapter 16, “Configuring Cisco IOS IP SLAs Operations”
Embedded Event Manager
Embedded Event Manager (EEM) is a distributed and customized approach to event detection and
recovery within a Cisco IOS device. EEM offers the ability to monitor events and take informational,
corrective, or any other EEM action when the monitored events occur or when a threshold is reached.
An EEM policy defines an event and the actions to be taken when that event occurs.
This policy is a programmed script that you can use to customize a script to invoke an action based on a
given set of events occurring. The script generates actions such as generating custom syslog or Simple
Network Management Protocol (SNMP) traps, invoking CLI commands, forcing a failover, and so forth.
The event management capabilities of EEM are useful because not all event management can be