Using Cisco Ios Ip Slas To Measure Network Performance - Cisco Catalyst 4500 Series Configuration Manual

Chapter 66 Configuring Cisco IOS IP SLA Operations
This section includes this information about IP SLAs functionality:
•
•
•
•
•

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.
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
IP SLA measurement
and IP SLA responder to
IP SLA Responder
To implement IP SLAs network performance measurement, you need to perform these tasks:
OL-25340-01
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
Cisco IOS IP SLAs Operation
Any IP device
IP SLA
IP SLA responder
IP SLA measurement IP SLA measurement
and IP SLA responder to and IP SLA responder to
IP SLA Responder IP SLA Responder
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.
Schedule the operation to run, then let the operation run for a period of time to gather statistics.
5.
Display and interpret the results of the operation using the Cisco IOS CLI or a network
6.
management system (NMS) system with SNMP.
Figure 66-1 shows how IP SLAs begins when the source device sends
IP network
Software Configuration Guide—Release IOS XE 3.3.0SG and IOS 15.1(1)SG
Understanding Cisco IOS IP SLAs
Performance
management
application
SNMP
IP SLA
IP SLA source
66-3