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Editorial Team
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Asked: 2026-05-14T19:46:59+00:00

I am trying to measure latency to a server that I don’t control. This

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I am trying to measure latency to a server that I don’t control. This is in a colocated environment, so the latency is on the order of 500 us (.5 ms).

I understand that Cisco gear frequently deprioritizes ICMP traffic, making ping times unreliable. Is there a way for me to tell if this is the case on the gear I am traversing?

Can I use TCP acknowledgements to determine the minimum latency to the remote server? To do this, I would somehow need to force the remote server to send a TCP ack immediately on receiving my data.

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1 Answer

  1. Editorial Team

    You could try using arping, which does a ping using ARPs.

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