Internet diameter?

Ben Cannon ben at
Thu Nov 22 04:25:09 UTC 2018

This begs the question, which is more meaningful a metric, AS-path or hop count?  Many networks have a large number of routers but the packets don’t stay in them very long.


> On Nov 21, 2018, at 8:10 PM, Bryce Wilson <bryce at> wrote:
> I don’t have any hard statistics but I notice that on a majority of ASs on <>, the average AS path length is between 4 and 5. As for the average number of hops, it clearly depends on what type of traffic and many ASNs have more than one router. Going on my own experience I would say between 8 and 10 hops would be the average of non-cached content. If you included cached content such as cdns and caches then the actual average might be closer to 5 to 7. This is only an estimate from my own network and those of my clients so the actual value may be completely different.
> As with what others have said, I’m not sure on what use this data, if collected, would be. Latency is the most important.
> Thanks ~ Bryce Wilson, AS202313, EVIX, AS137933

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