[comp.protocols.tcp-ip.ibmpc] Ethernet-LAN & IBM 9370

PAP4@AI.AI.MIT.EDU ("Philip A. Prindeville") (10/23/87)

(PCIP readers:	I call your attention to the last paragraph.  If you respond,
		reply to both lists.)

> The PC's should also be able to run a PC-network over the same cabling for
> exchanging messages and retrieving files from a PC fileserver.

There isn't any real difficulty in running multiple protocols over the same
ethernet (except Novell Netware and Xerox XNS).  But, why make your mail
facilities dependent on the PC?  Use of an open protocol, machine independent
mail system like SMTP would provide greater interoperability should you
require it in the future.

> Access to Email-facilities would be through our EARN/BITNET-connected 9370.

There are also numerous software packages to convert SMTP/TCP to BITNET
mail.  That you are reading this message proves that...

> 1. Does anybody have experience with the IBM (host and PC) TCP/IP product in
>    connection with the Ethernet board on the 9370 ?

Sorry, no.  Too new for me.

> 2. Does anybody have experience with TCP/IP products for PC's vs. IBM hosts ?

I've seen the UMD/IBM code and the UCLA code run fairly well with PCs and other
micros.  No experience with WISCNet or Fibronics KNET...

> 3. Can a PC run both TCP/IP to the host and some other networking program
>    communication to the other PC's ?

Yes -- if it is well behaved (see previous message).  Again I'll warn against
getting locked into proprietary or manufacturer-specific protocols...

> 4. How do we hook the remote LAN into the host, directly into the Ethernet
>    board or via a bridge onto the local Ethernet LAN ?

By host I assume you mean the 9370. If you did `hook it directly' to the
9370, it would be via a serial interface, since you are using 9.6kbs lines
to link the networks...  Another approach would be to use a gateway,
possibly a dedicated machine.

Does anyone have any have any experience linking ethernet islands via
Phil Karn's package?  Ease of configuration, reliability, and throughput
info would be of great interest.

-Philip