Re: Terminology/intro draft

[Scott Michel <scottm@rush.aero.org>]

Ok. I became a target as soon as I agreed to write this.

So far, I've gotten a couple of suggestions about the concept "feed".
But why drag bidirectionality into this? Why do we need virtual interfaces?

> Follows are my idea about UDLR terminology,
> 
>   UDL -
>     Uni-directional link. Some kinds of cable net service and a satellite
>     channel are the sample.
> 
>   BDL -
>     Bi-directional link.
> 
>   Feed -
>     A host or a router which sends packets to UDL.
> 
>   Receiver -
>     A host or a router which receives packets from the UDL. It can not send
>     packets to the UDL.
> 
>   VIF (Virtual Interface) -
>     An interface which emulate a UDL as a BDL.
> 
>   NIF (Non-virtual Interface) -
>     An interface which associate a physical interface. A serial interface
>     and an ethernet interface are the sample of this.
> 
>   Forward-channel -
>     A path from a Feed to a Receiver over an UDL.
> 
>   Back-channel -
>     A path from a Receiver to a Feed. In this draft, this path consists
>     of a tunnel over the Internet.
> 
> -- izu --
>