How about jitter like this Chrys?
Pinging 194.168.4.100 with 32 bytes of data:
Reply from 194.168.4.100: bytes=32 time=48ms TTL=251
Reply from 194.168.4.100: bytes=32 time=53ms TTL=251
Reply from 194.168.4.100: bytes=32 time=735ms TTL=251
Reply from 194.168.4.100: bytes=32 time=750ms TTL=251
Request timed out.
Reply from 194.168.4.100: bytes=32 time=15ms TTL=251
Reply from 194.168.4.100: bytes=32 time=26ms TTL=251
Reply from 194.168.4.100: bytes=32 time=41ms TTL=251
Reply from 194.168.4.100: bytes=32 time=19ms TTL=251
Reply from 194.168.4.100: bytes=32 time=43ms TTL=251
Ping statistics for 194.168.4.100:
Packets: Sent = 10, Received = 9, Lost = 1 (10% loss),
Approximate round trip times in milli-seconds:
Minimum = 15ms, Maximum = 750ms, Average = 192ms