15 Jul
2022
15 Jul
'22
2:39 a.m.
It can do subnets, but it can’t deal with long haul (over the greater
internet) time delays.
------ Original Message ------
From "Tom Teixeira" <tjteixeira(a)earthlink.net>
To tuhs(a)tuhs.org
Date 7/14/2022 4:32:55 PM
Subject [TUHS] Re: Unix V8 Chaosnet, any takers?
On 7/14/22 2:19 PM, Ron Natalie wrote:
Note, I don’t know what you’re planning, but Chaos
couldn’t take any propagation delay. It’s really limited to a LAN implementation as
originally designed.
It definitely had subnet routing, and as I recall, the KL10's and other
machines with front end I/O processors generally used chaosnet routing between the host
itself and the rest of the network. i.e. the I/O processor was on one subnet, the host on
a second subnet and the rest of the "LAN" was on the other side of the I/O
processor. My recollection is that unlike an IP router, a Chaosnet node had only one
address, and routing tables determined which device to send the data on.
And LCS definitely had multiple coax cable runs with each run a subnet with routing
between. But with a maximum of 256 subnets, routing was much simpler.
I wonder how much benefit is available from using network switches rather than collision
detection and retransmit, though the virtual token was supposed to reduce collisions
somewhat.