Solved: IP SLA Recurring

stephen.stack · ‎03-11-2010

Hi All,

I use an snmp tool to monitor IP SLA results. This works fine, but in testing this setup i noticed

that the Monitors i setup created a new collection index after the previous has completed. This happens

after 720 operations.

See config below

rtr 10
type echo protocol ipIcmpEcho 1.1.1.1 source-ipaddr 2.2.2.2
frequency 5
rtr schedule 10 life forever start-time now

ROUTER#sh rtr collection-statistics
Entry number: 10
Start Time Index: 19:08:19.628 GMT Thu Mar 11 2010
Number of successful operations: 720
Number of operations over threshold: 0
Number of failed operations due to a Disconnect: 0
Number of failed operations due to a Timeout: 0
Number of failed operations due to a Busy: 0
Number of failed operations due to a No Connection: 0
Number of failed operations due to an Internal Error: 0
Number of failed operations due to a Sequence Error: 0
Number of failed operations due to a Verify Error: 0
RTT Values:
RTTAvg: 2 RTTMin: 1 RTTMax: 216
NumOfRTT: 720 RTTSum: 1800 RTTSum2: 144548

Start Time Index: 20:08:19.628 GMT Thu Mar 11 2010
Number of successful operations: 201
Number of operations over threshold: 0
Number of failed operations due to a Disconnect: 0
Number of failed operations due to a Timeout: 0
Number of failed operations due to a Busy: 0
Number of failed operations due to a No Connection: 0
Number of failed operations due to an Internal Error: 0
Number of failed operations due to a Sequence Error: 0
Number of failed operations due to a Verify Error: 0
RTT Values:
RTTAvg: 4 RTTMin: 1 RTTMax: 216
NumOfRTT: 201 RTTSum: 845 RTTSum2: 93617

Can anyone explain this to me? Is it important, and after each consecutive 720 operations is a new index created??

TIA

Stephen

========================== http://www.rconfig.com A free, open source network device configuration management tool, customizable to your needs! - Always vote on an answer if you found it helpful

Sergei Vasilenko · ‎03-16-2010

Hello Stephen,

By default the 2 backets of 1 hour stats are maintained for an IP SLAs operation.

In your case 720 x 5sec (freq) = 3600 sec.

You could also check this via CLI using "show ip sla monitor configuration ".

It could be changed however, please check the following:

Configuring and Scheduling an ICMP Echo Operation with Optional Parameters on the Source Device

http://www.cisco.com/en/US/partner/docs/ios/12_4/ip_sla/configuration/guide/hsicmp.html#wp1053262

Thanks,

Sergey

View solution in original post

Sergei Vasilenko · ‎03-16-2010