- IP SLAs Overview
- Configuring IP SLAs UDP Jitter Operations
- Configuring IP SLAs UDP Jitter Operations for VoIP
- Configuring IP SLAs UDP Echo Operations
- Configuring IP SLAs HTTP Operations
- Configuring IP SLAs TCP Connect Operations
- Configuring Cisco IP SLAs ICMP Jitter Operations
- Configuring IP SLAs ICMP Echo Operations
- Configuring IP SLAs ICMP Path Echo Operations
- Configuring IP SLAs ICMP Path Jitter Operations
- Configuring IP SLAs FTP Operations
- Configuring IP SLAs DNS Operations
- Configuring IP SLAs DHCP Operations
- Configuring an IP SLAs Multioperation Scheduler
- Configuring Proactive Threshold Monitoring for IP SLAs Operations
- Finding Feature Information
- Restrictions for IP SLAs ICMP Echo Operations
- Information About IP SLAs ICMP Echo Operations
- How to Configure IP SLAs ICMP Echo Operations
Configuring IP SLAs ICMP Echo Operations
This module describes how to configure an IP Service Level Agreements (SLAs) Internet Control Message Protocol (ICMP) Echo operation to monitor end-to-end response time between a Cisco router and devices using IPv4 or IPv6. ICMP Echo is useful for troubleshooting network connectivity issues. This module also demonstrates how the results of the ICMP Echo operation can be displayed and analyzed to determine how the network IP connections are performing.
- Finding Feature Information
- Restrictions for IP SLAs ICMP Echo Operations
- Information About IP SLAs ICMP Echo Operations
- How to Configure IP SLAs ICMP Echo Operations
- Configuration Examples for IP SLAs ICMP Echo Operations
- Additional References for IP SLAs ICMP Echo Operations
- Feature Information for IP SLAs ICMP Echo Operations
Finding Feature Information
Your software release may not support all the features documented in this module. For the latest caveats and feature information, see Bug Search Tool and the release notes for your platform and software release. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the feature information table at the end of this module.
Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required.
Restrictions for IP SLAs ICMP Echo Operations
We recommend using a Cisco networking device as the destination device although any networking device that supports RFC 862, Echo protocol, can be used.
Information About IP SLAs ICMP Echo Operations
ICMP Echo Operation
The ICMP Echo operation measures end-to-end response time between a Cisco router and any devices using IP. Response time is computed by measuring the time taken between sending an ICMP Echo request message to the destination and receiving an ICMP Echo reply.
In the figure below ping is used by the ICMP Echo operation to measure the response time between the source IP SLAs device and the destination IP device. Many customers use IP SLAs ICMP-based operations, in-house ping testing, or ping-based dedicated probes for response time measurements.
The IP SLAs ICMP Echo operation conforms to the same IETF specifications for ICMP ping testing and the two methods result in the same response times.
How to Configure IP SLAs ICMP Echo Operations
Configuring an ICMP Echo Operation
Note |
There is no need to configure an IP SLAs responder on the destination device. |
Perform one of the following tasks:
- Configuring a Basic ICMP Echo Operation on the Source Device
- Configuring an ICMP Echo Operation with Optional Parameters
Configuring a Basic ICMP Echo Operation on the Source Device
1. enable
2. configure terminal
3. ip sla operation-number
4. icmp-echo {destination-ip-address | destination-hostname} [source-ip {ip-address | hostname} | source-interface interface-name]
5. frequency seconds
6. end
DETAILED STEPS
To add proactive threshold conditions and reactive triggering for generating traps, or for starting another operation, to an IP SLAs operation, see the "Configuring Proactive Threshold Monitoring" section.
Configuring an ICMP Echo Operation with Optional Parameters
Perform this task on the source device.
1. enable
2. configure terminal
3. ip sla operation-number
4. icmp-echo {destination-ip-address | destination-hostname} [source-ip {ip-address | hostname} | source-interface interface-name]
5. history buckets-kept size
6. history distributions-of-statistics-kept size
7. history enhanced [interval seconds] [buckets number-of-buckets]
8. history filter {none | all | overThreshold | failures}
9. frequency seconds
10. history hours-of-statistics-kept hours
11. history lives-kept lives
12. owner owner-id
13. request-data-size bytes
14. history statistics-distribution-interval milliseconds
15. tag text
16. threshold milliseconds
17. timeout milliseconds
19. flow-label number
20. verify-data
21. vrf vrf-name
22. end
DETAILED STEPS
To add proactive threshold conditions and reactive triggering for generating traps, or for starting another operation, to an IP SLAs operation, see the "Configuring Proactive Threshold Monitoring" section.
Scheduling IP SLAs Operations
- All IP Service Level Agreements (SLAs) operations to be scheduled must be already configured.
- The frequency of all operations scheduled in a multioperation group must be the same.
- The list of one or more operation ID numbers to be added to a multioperation group must be limited to a maximum of 125 characters in length, including commas (,).
- ip sla schedule operation-number [life {forever | seconds}] [start-time {[hh:mm:ss] [month day | day month] | pending | now | after hh:mm:ss}] [ageout seconds] [recurring]
- ip sla group schedule group-operation-number operation-id-numbers {schedule-period schedule-period-range | schedule-together} [ageout seconds] [frequency group-operation-frequency] [life {forever | seconds}] [start-time {hh:mm [:ss] [month day | day month] | pending | now | after hh:mm [:ss]}]
1. enable
2. configure terminal
3. Enter one of the following commands:
4. end
5. show ip sla group schedule
6. show ip sla configuration
DETAILED STEPS
Troubleshooting Tips
- If the IP Service Level Agreements (SLAs) operation is not running and not generating statistics, add the verify-data command to the configuration (while configuring in IP SLA configuration mode) to enable data verification. When data verification is enabled, each operation response is checked for corruption. Use the verify-data command with caution during normal operations because it generates unnecessary overhead.
- Use the debug ip sla trace and debug ip sla error commands to help troubleshoot issues with an IP SLAs operation.
What to Do Next
To add proactive threshold conditions and reactive triggering for generating traps (or for starting another operation) to an IP Service Level Agreements (SLAs) operation, see the “Configuring Proactive Threshold Monitoring” section.
Configuration Examples for IP SLAs ICMP Echo Operations
Example Configuring an ICMP Echo Operation
The following example shows how to configure an IP SLAs operation type of ICMP Echo that will start immediately and run indefinitely.
ip sla 6 icmp-echo 172.29.139.134 source-ip 172.29.139.132 frequency 300 request-data-size 28 tos 160 timeout 2000 tag SFO-RO ip sla schedule 6 life forever start-time now
Additional References for IP SLAs ICMP Echo Operations
Related Documents
Related Topic |
Document Title |
---|---|
Cisco IOS commands |
|
IP SLAs commands |
|
Information about Cisco IP SLAs |
“Cisco IOS IP SLAs Overview” module of the IP SLAs Configuration Guide |
Standards and RFCs
Standard/RFC |
Title |
---|---|
RFC 862 |
Echo Protocol |
MIBs
MIBs |
MIBs Link |
---|---|
CISCO-RTTMON-MIB |
To locate and download MIBs for selected platforms, Cisco IOS releases, and feature sets, use Cisco MIB Locator found at the following URL: |
Technical Assistance
Description |
Link |
---|---|
The Cisco Support and Documentation website provides online resources to download documentation, software, and tools. Use these resources to install and configure the software and to troubleshoot and resolve technical issues with Cisco products and technologies. Access to most tools on the Cisco Support and Documentation website requires a Cisco.com user ID and password. |
Feature Information for IP SLAs ICMP Echo Operations
The following table provides release information about the feature or features described in this module. This table lists only the software release that introduced support for a given feature in a given software release train. Unless noted otherwise, subsequent releases of that software release train also support that feature.
Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required.
Feature Name |
Releases |
Feature Information |
---|---|---|
IP SLAs ICMP Echo Operation |
Cisco IOS XE Release 3.2SE |
The Cisco IOS IP SLAs Internet Control Message Protocol (ICMP) echo operation allows you to measure end-to-end network response time between a Cisco device and other devices using IP. |
IPv6 - IP SLAs (UDP Jitter, UDP Echo, ICMP Echo, TCP Connect) |
Cisco IOS XE Release 3.2SE |
Support was added for operability in IPv6 networks. |