[comp.protocols.appletalk] Just what exactly is Ethertalk?

FelineGrace@cup.portal.com (Dana B Bourgeois) (02/08/91)

I see lots of reference to Ethertalk in Mac magazines.  Just what is it
and what is it's relationship to TCP/IP and NFS?  I ask because I have
an Ethernet system with TCP/IP and NFS on it (for the MS-DOS machines)
and I know that someday I will need to connect the growing number of
Macs to this network.  So where does Ethertalk fit into my network?
Maybe I can't use it?

Thanks in advance...

Dana Bourgeois @ cup.portal.com

winders@aux.support.apple.com (Scott Winders) (02/09/91)

In article <39041@cup.portal.com> FelineGrace@cup.portal.com (Dana B 
Bourgeois) writes:

> I see lots of reference to Ethertalk in Mac magazines.  Just what is it
> and what is it's relationship to TCP/IP and NFS?  I ask because I have
> an Ethernet system with TCP/IP and NFS on it (for the MS-DOS machines)
> and I know that someday I will need to connect the growing number of
> Macs to this network.  So where does Ethertalk fit into my network?
> Maybe I can't use it?

EtherTalk is AppleTalk incapsulated inside Ethernet or 802.3 style packets.
EtherTalk with AppleTalk Phase 1 packets are encapsulated in Ethernet style packets. EtherTalk with AppleTalk Phase 2 packets are encapsulated in 802.3 style packets.

Scott Winders
internet: winders@aux.support.apple.com
AppleLink: winders.s@applelink.apple.com

mst@ms.secs.csun.edu (Mike Temkin) (02/10/91)

In article <39041@cup.portal.com> FelineGrace@cup.portal.com (Dana B Bourgeois) writes:
>I see lots of reference to Ethertalk in Mac magazines.  Just what is it
>and what is it's relationship to TCP/IP and NFS?  I ask because I have
>an Ethernet system with TCP/IP and NFS on it (for the MS-DOS machines)
>and I know that someday I will need to connect the growing number of
>Macs to this network.  So where does Ethertalk fit into my network?
>Maybe I can't use it?
>
>Thanks in advance...
>
>Dana Bourgeois @ cup.portal.com

Different kinds of *talk exist for different phyiscal medium.  AppleTalk
is the protocol that is sent on LocalTalk cabels, EtherTalk protocol is
the (AppleTalk) protocol that is sent via Ethernet cables, and TokenTalk
is what is sent over TokenRing cables.  The protocols all do the same thing,
but in a different fashion.  For a more detailed answer, read Inside AppleTalk.


Mike.
--
Mike Temkin
mst@csun.edu
Cal. State U. Northridge, School of Engineering and Computer Science
Voice phone: (818) 885-3919