SLA – Service Level Agreement
The IP SLA service allows you to do different tests:
– icmp-echo – Ping test via ICMP
– path-echo – Traceroute via ICMP
– path-jitter – Traceroute taking into account jitter via ICMP
– dns – DNS response time
– dhcp – Time to respond to a DHCP query
– ftp – Response time of an FTP server
– http – Response time of a web server
– udp-echo – Response time in UDP
– udp-jitter – Lets identify a one-way jitter between two points.
– tcp-connect – Response time to open a TCP connection with a host.
This service does not need to be set up on the destination except for the following two tests:
The AlS configuration to be used for these protocols is detailed in the HSRP article
IP SLA can be configured to send a SNMP trap to a SNMP manager if the test fails.
NB: On your routers, the SLA service is in the DATA package. With an IPS 15 IPBASE. you won't be able to use this service…
Step 1: Create our SLA IP test
Switch (config) ip sla 10 Switch (config-ip-sla) icmp-echo 192.168.0.1 source-ip 192.168.0.254 Switch (config-ip-sla) frequency 5
– 10 – test number
– icmp-echo – test type
– source-ip – IP address put in IP source in our IP header
– frequency 5 – This ICMP test will be performed every 5 seconds
Type 2: Run our ALS test
Switch (config) - ip sla schedule 10 start-time now life forever
– Schedule 10 – Planning the AlS Test No.10
– start-time now – The test starts now
– life forever – The test will be done all the time.
Step 3: Configuration check
The following order will allow us to check (in more detail than a show run) our SLA configuration:
Switch show ip sla configuration
Switch show ip sla statistics 10
Hoping this article has been helpful to you! Don't hesitate to let me know!!
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