Re: erronous sorting of traceroute path

[nnposter <nnposter () users sourceforge net>]

On 4/26/17 2:38 PM, C H wrote:
> *Q2: Why is the output not sorted according to the timestamps as stated
> in collumn#2?*

The latency is calculated from how long it took the original packet to
reach the hop where it expired *and* how long it took the ICMP type 11
notification to come back.

Some routers tend to prioritize routing packets over internal functions
(such as sending the above-mentioned ICMP response). This way it is
possible for an ICMP message from hop N+1 to arrive faster than from hop
N because the response from N+1 is treated like a routed packet by hop N
and therefore given priority over its own ICMP message.

Cheers,
nnposter
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