Does SPX still feature in a Novell stack?

[Colin Helliwell]

I've been reading a1992 article on lan's in Computer Shopper (UK), which
describes the OSI model, TCP/IP and Novell. On Novell, it describes the IPX
layer above the MAC layer, and an SPX layer on top of the IPX. Obviously,
Netware uses the IPX layer via, for instance, ipxodi, but where is SPX? Is
it no longer present in the stack, or is it bundled inside the Netware shell?

BTW - what do IPX and SPX stand for??

==================================================================
Colin Helliwell
(co...@lincoln.gpsemi.com)
GEC Plessey Semiconductors
Lincoln
ENGLAND
==================================================================

[Mark Folse]

CH>
CH>@SUBJECT:Does SPX still feature in a Novell stack?
CH>Message-ID: <CGLMG...@bailgate.gpsemi.com>
CH>Newsgroup: comp.sys.novell
CH>Organization: GEC Plessey Semiconductors
CH>
CH>I've been reading a1992 article on lan's in Computer Shopper (UK),
CH>describes the OSI model, TCP/IP and Novell. On Novell, it describes
CH>layer above the MAC layer, and an SPX layer on top of the IPX. Obvi
CH>Netware uses the IPX layer via, for instance, ipxodi, but where is
CH>it no longer present in the stack, or is it bundled inside the Netw
CH>
CH>BTW - what do IPX and SPX stand for??
CH>

Ah, all that CNE study finally put to *somebody's* benefit.

In pure IPX (not ODI setup), Internetwork Packet Exchange sits at the
Transport Layer, just on top of the Network/Data-Link/Physical stack.
Sequenced Packet Exchange sits athwart IPX at the Session Layer. If
you're using SPX it is a header added to the datagram on the way down (IPX
header/SPX header/data). Using ODI it gets a little more complicated.
Link Support Layer passes the Link Control Layer sublevel packet off to
the appropriate protocal stack. In this case, IPXODI. LSL pipes it on
deck as it were to the Transport Layer where IPX operates.
---
ş Orator V1.14 ş [Windows Qwk Reader Unregistered Evaluation Copy]