Cisco IP SLA ICMP Jitter

Here is a short article on the configuration of the Cisco IP SLA ICMP Jitter operation.

the syntax of the ICMP Jitter operation is:

(config-ip-sla)#icmp-jitter {DST}

Let us use it to collect measurements between R2 and R4, of this topology.

R2(config)#ip sla 1
R2(config-ip-sla)#icmp-jitter ?
Hostname or A.B.C.D Destination IP address or hostname, broadcast disallowed

R2(config-ip-sla)#icmp-jitter 192.168.100.5 ?
interval Inter Packet Interval
num-packets Number of Packets to be transmitted
source-ip Source Address
<cr>

R2(config-ip-sla)#icmp-jitter 192.168.100.5 source-ip 192.168.100.6
R2(config-ip-sla-icmpjitter)#
R2(config-ip-sla-icmpjitter)#?
IP SLAs Icmp Jitter Configuration Commands:
default Set a command to its defaults
exit Exit operation configuration
frequency Frequency of an operation
history History and Distribution Data
no Negate a command or set its defaults
owner Owner of Entry
percentile Set percentile statistics levels
tag User defined tag
threshold Operation threshold in milliseconds
timeout Timeout of an operation
tos Type Of Service
vrf Configure IP SLAs for a VPN Routing/Forwarding instance

R2(config-ip-sla-icmpjitter)#frequency 5
R2(config-ip-sla-icmpjitter)#

The results can be seen with show ip sla statistics 1

R2#sh ip sla statistics 1
IPSLAs Latest Operation Statistics
IPSLA operation id: 1
Type of operation: icmp-jitter
Latest RTT: 17 milliseconds
Latest operation start time: 13:54:02 UTC Tue Nov 14 2017
Latest operation return code: OK
RTT Values:
Number Of RTT: 10 RTT Min/Avg/Max: 8/17/28 milliseconds
Latency one-way time:
Number of Latency one-way Samples: 0
Source to Destination Latency one way Min/Avg/Max: 0/0/0 milliseconds
Destination to Source Latency one way Min/Avg/Max: 0/0/0 milliseconds
Jitter Time:
Number of SD Jitter Samples: 9
Number of DS Jitter Samples: 9
Source to Destination Jitter Min/Avg/Max: 0/9/17 milliseconds
 Destination to Source Jitter Min/Avg/Max: 0/12/19 milliseconds
Over Threshold:
Number Of RTT Over Threshold: 0 (0%)
Packet Late Arrival: 0
Out Of Sequence: 0
Source to Destination: 0 Destination to Source 0
In both Directions: 0
Packet Skipped: 0 Packet Unprocessed: 0
Packet Loss: 0
Loss Periods Number: 0
Loss Period Length Min/Max: 0/0
Inter Loss Period Length Min/Max: 0/0
Number of successes: 2
Number of failures: 0
Operation time to live: Forever

As I have colored the relevant information, Cisco IP SLA ICMP Jitter operation displays information about:
– number of RTTs
– RTT minimum, average and maximum values
– one-way delay from Source to Destination
– one-way delay from Destination to Source
– operation code

Top Courses in IT & Software 300x250

Leave a Reply

Your email address will not be published. Required fields are marked *

*

Adsense black background: