VAX 11/725

[Antonio Carlini]

> *The only thing that I never understood is what the hell did 
> Cisco mean
> by multicast or broadcast on a point-to-point link.  I guess 
> it dates from
> the days before people realised that a point-to-point link is 
> not a network

Well there certainly were non-point-to-point synch implementations
around: DEC DDCMP supports multi-drop links.

> (no ARP, etc.) and does not need to burn up a net/subnet 
> number, and people
> would map a net number (hopefully a /30 subnet) to each 
> point-to-point link.

There's an RFC around somewhere that allows for /31 subnets
for such purposes (.1 and .0 being allowed as the two ends).
No idea if it ever caught on though.

Antonio


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Antonio Carlini arcarlini at iee.org