[comp.protocols.appletalk] Zones, what are they for in phase2 ?

makmur@athos.rutgers.edu (Hanz Makmur) (06/28/91)

Hello appletalker, I have a simple question to ask concerning
appletalk zones. I hope this has not been asked before.

In Inside Appletalk Book, zone is defined as: (p.7-10)
	"An arbitrary subset of nodes within an internet. A particular network
can obtain nodes belonging to any number of zones ( although all nodes
in a non extended network must belong to the same zone). A particular
node belongs to only one zone. The union of all zone is the internet.
A zone is identified by a string of no more than 32 characters.
	The concept of zones is provided to establish departmental or
other user-understandable groupings of the entities of the internet.
Zones are intelligible only to NBP and to the related Zones
Information Protocol (ZIP)."

Let say I have 30 macs on Ethertalk and 3 Fastpath and 30 macs on localtalk.
If I were to group these Macs, will it be advantages for me to:

1. group the Macs to 1 zones and 4 networks ?  and why so ?

2. group the Macs to 4 zones and 4 networks - 1 ethertalk zone (30
   macs) , 3 localtalk  zones (10 macs each) and  group the macs to the
   specific net they  belong to. ? and why so ?

3. group the macs to the specific groups/department they belong to and
   create 20 zones and 4 networks ? and  why so ?

Hanz  Makmur
Rutgers University

kre@cs.mu.oz.au (Robert Elz) (06/28/91)

They're intended for what they were always intended for - to group
logically related nodes.  The idea is that by default the objects that
you want to reference should be in the same zone as you are, and others
you rarely reference should be in other zones.

Its not always possible to achieve that, due to all kinds of weird
constraints, but that's what you should be aiming for.

kre