Cisco Catalyst 4500 Series Configuration Guide

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Software Configuration Guide—Release IOS XE 3.3.0SG and IOS 15.1(1)SG
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Chapter 66 Configuring Cisco IOS IP SLA Operations
Understanding Cisco IOS IP SLAs
This section includes this information about IP SLAs functionality:
• Using Cisco IOS IP SLAs to Measure Network Performance, page 66-3
• IP SLAs Responder and IP SLAs Control Protocol, page 66-4
• Response Time Computation for IP SLAs, page 66-4
• IP SLAs Operation Scheduling, page 66-5
• IP SLAs Operation Threshold Monitoring, page 66-5
Using Cisco IOS IP SLAs to Measure Network Performance
You can use IP SLAs to monitor the performance between any area in the network—core, distribution,
and edge—without deploying a physical probe. It uses generated traffic to measure network performance
between two networking devices. Figure 66-1 shows how IP SLAs begins when the source device sends
a generated packet to the destination device. After the destination device receives the packet, depending
on the type of IP SLAs operation, it responds with time-stamp information for the source to make the
calculation on performance metrics. An IP SLAs operation performs a network measurement from the
source device to a destination in the network using a specific protocol such as UDP.
Figure 66-1 Cisco IOS IP SLAs Operation
To implement IP SLAs network performance measurement, you need to perform these tasks:
1. Enable the IP SLAs responder, if required.
2. Configure the required IP SLAs operation type.
3. Configure any options available for the specified operation type.
4. Configure threshold conditions, if required.
5. Schedule the operation to run, then let the operation run for a period of time to gather statistics.
6. Display and interpret the results of the operation using the Cisco IOS CLI or a network
management system (NMS) system with SNMP.
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IP SLA sourceIP SLA responder
IP SLA
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SNMP
Performance
management
application
IP network
IP SLA
IP SLA measurement
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IP SLA Responder
IP SLA measurement
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IP SLA Responder
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IP SLA Responder

Cisco Catalyst 4500 Series Specifications

General

Series	Catalyst 4500 Series
Category	Switch
Layer Support	Layer 2, Layer 3
Form Factor	Modular chassis
Stackable	No
Chassis Slots	3, 6, 7, 10
Power Supply Options	AC, DC
Redundancy	Power supply, Supervisor engine
Network Management	Cisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
Features	Security, QoS
Port Density	Up to 384 ports per chassis
Security Features	802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine	8-E