[c-nsp] Latency Spike

[Samol]

Thanks Pete/Darren,

Best presentation ever !


2014-07-31 20:04 GMT+07:00 Pete Lumbis <alumbis at gmail.com>:

> Go to Cisco Live 365 and watch my talk called "IOS Routing Internals" from
> San Francisco this year. I address exactly this (spoiler: it's what Darren
> said)
>
> -Pete
>
>
> On Thu, Jul 31, 2014 at 1:10 AM, Samol <molasian at gmail.com> wrote:
>
>> 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.152.3.152.3 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 ?
>>
>>
>> Regards,
>>
>> --
>> Samol Khoeurn
>> (855) 077 55 64 02 / (855) 067 41 88 66
>> Network Engineer
>> Cisco: CCNA/CCNP SP/CCIP/
>> Juniper: JNCIA/JNCIS-ENT,SP,SEC/JNCIP-ENT
>> www.linkedin.com/in/samolkhoeurn
>> _______________________________________________
>> cisco-nsp mailing list  cisco-nsp at puck.nether.net
>> https://puck.nether.net/mailman/listinfo/cisco-nsp
>> archive at http://puck.nether.net/pipermail/cisco-nsp/
>>
>
>


-- 
Samol Khoeurn
(855) 077 55 64 02 / (855) 067 41 88 66
Network Engineer
Cisco: CCNA/CCNP SP/CCIP/
Juniper: JNCIA/JNCIS-ENT,SP,SEC/JNCIP-ENT
www.linkedin.com/in/samolkhoeurn