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IP SLA command not working


I am trying to configure IP SLA on a 2851 router (source) and a 3750 (stacked) (responder).  I have followed the setup instructions in the following documentation.

The 2851 will not take the following command to start the ip sla monitoring.

ip sla schedule 1 life forever start-time now

I've everything else I possibly can figure out.  Below is the ip sla configuration output.

ADMIN_2851_VG#sh ip sla configuration

IP SLAs Infrastructure Engine-III

Entry number: 200

Owner: it_dept

Tag: VG to CSW

Operation timeout (milliseconds): 1000

Type of operation to perform: udp-jitter

Target address/Source address:

Target port/Source port: 16384/0

Type Of Service parameter: 0xA0

Codec Type: g711alaw

Codec Number Of Packets: 1000

Codec Packet Size: 172

Codec Interval (milliseconds): 20

Advantage Factor: 0

Verify data: No

Vrf Name:

Control Packets: enabled


   Operation frequency (seconds): 60  (not considered if randomly scheduled)

   Next Scheduled Start Time: Pending trigger

   Group Scheduled : FALSE

   Randomly Scheduled : FALSE

   Life (seconds): 3600

   Entry Ageout (seconds): never

   Recurring (Starting Everyday): FALSE

   Status of entry (SNMP RowStatus): notInService

Threshold (milliseconds): 1000

Distribution Statistics:

   Number of statistic hours kept: 12

   Number of statistic distribution buckets kept: 1

   Statistic distribution interval (milliseconds): 20

Enhanced History:

Any help would be greatly appreciated!

1 Reply 1

Cisco Employee
Cisco Employee

What version are you running on the router. IP SLA commands has variations with different software versions that you use

Some versions use

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]

Others use

ip sla monitor schedule operation-number

Check the link below

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