Cisco Catalyst 2960 Software Configuration Manual page 708
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Also See for Catalyst 2960:
- Configuration manual (2288 pages) ,
- Command reference manual (800 pages) ,
- Hardware installation manual (108 pages)
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Understanding Cisco IOS IP SLAs
Depending on the specific Cisco IOS IP SLAs operation, various network performance statistics are
monitored within the Cisco device and stored in both command-line interface (CLI) and Simple Network
Management Protocol (SNMP) MIBs. IP SLAs packets have configurable IP and application layer
options such as source and destination IP address, User Datagram Protocol (UDP)/TCP port numbers, a
type of service (ToS) byte (including Differentiated Services Code Point [DSCP] and IP Prefix bits),
Virtual Private Network (VPN) routing/forwarding instance (VRF), and URL web address.
Because Cisco IP SLAs is Layer 2 transport independent, you can configure end-to-end operations over
disparate networks to best reflect the metrics that an end user is likely to experience. IP SLAs collects a
unique subset of these performance metrics:
•
Delay (both round-trip and one-way)
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Jitter (directional)
Packet loss (directional)
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Packet sequencing (packet ordering)
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Path (per hop)
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Connectivity (directional)
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Server or website download time
•
Because Cisco IOS IP SLAs is SNMP-accessible, it can also be used by performance-monitoring
applications like CiscoWorks Internetwork Performance Monitor (IPM) and other third-party Cisco
partner performance management products. You can find more details about network management
products that use Cisco IOS IP SLAs:
http://www.cisco.com/go/ipsla
Using IP SLAs can provide these benefits:
•
Service-level agreement monitoring, measurement, and verification.
•
Network performance monitoring
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IP service network health assessment to verify that the existing QoS is sufficient for new IP services.
•
Edge-to-edge network availability monitoring for proactive verification and connectivity testing of
•
network resources (for example, shows the network availability of an NFS server used to store
business critical data from a remote site).
•
Troubleshooting of network operation by providing consistent, reliable measurement that
immediately identifies problems and saves troubleshooting time.
•
Multiprotocol Label Switching (MPLS) performance monitoring and network verification (if the
switch supports MPLS)
This section has this information about IP SLAs functionality:
•
Using Cisco IOS IP SLAs to Measure Network Performance, page 32-3
•
IP SLAs Responder and IP SLAs Control Protocol, page 32-4
•
Response Time Computation for IP SLAs, page 32-4
Catalyst 2960 and 2960-S Switches Software Configuration Guide, Release 15.0(1)SE
32-2
Measures the jitter, latency, or packet loss in the network.
Provides continuous, reliable, and predictable measurements.
Chapter 32
Configuring Cisco IOS IP SLAs Operations
OL-26520-01
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