[ih] Speaking of layering and gateways

[John R. Levine]

>> Very nice article!

Thanks.  I turned it into a blog post:  https://jl.ly/Internet/gauge.html

> Cars and trucks are encapsulated in a train for the Channel Tunnel 
> between England and France. Alternatively, they are encapsulated in 
> boats. Both systems are exposed to head-of-line blocking, are best 
> effort, and implement collision avoidance.

I'm not sure quite how far I want to push this.

There is one remaining passenger train ferry in Europe, from Italy to 
Sicily.  In the US there are no passenger train ferries, but there is a 
long distance freight rail ferry between Seattle and Alaska, and NYNJ rail 
across NY harbor because the closest rail bridge across the Hudson is 140 
miles north in Selkirk.

R's,
John