[j-nsp] Latency Spike

Samol molasian at gmail.com
Wed Jul 23 06:03:00 EDT 2014

Hi All,

Just experienced spike when doing the continuous ping as the result below:

64 bytes from x.x.152.3: icmp_seq=421 ttl=255 time=3.53 ms

64 bytes from x.x.152.3: icmp_seq=422 ttl=255 time=2.40 ms

64 bytes from x.x.160.152.3: icmp_seq=423 ttl=255 time=1.49 ms

64 bytes from x.x.152.3: icmp_seq=424 ttl=255 time=3.15 ms

64 bytes from x.x.152.3: icmp_seq=425 ttl=255 time=2.05 ms

*64 bytes from x.x.152.3: icmp_seq=426 ttl=255 time=107 ms*

64 bytes from x.x.152.3: icmp_seq=427 ttl=255 time=47.4 ms

64 bytes from x.x.152.3: icmp_seq=428 ttl=255 time=3.77 ms

64 bytes from x.x.152.3: icmp_seq=429 ttl=255 time=1.12 ms

64 bytes from x.x.152.3: icmp_seq=430 ttl=255 time=1.35 ms

--- x.x. ping statistics ---

500 packets transmitted, 500 received, 0% packet loss, time 25285ms

*rtt min/avg/max/mdev = 0.634/4.021/107.242/9.067 ms, pipe 2*

I tested this segment by segment (point to point) between the two devices,
and I still see this latency spike. I assume this is normal in the network
as router/switch needs time to calculate and send back to source.

Is There anyone experienced this or anything can cause this ?


Samol Khoeurn
(855) 077 55 64 02 / (855) 067 41 88 66
Network Engineer

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