PMP Mail Archive: PMP> Novell Channel Type Info

PMP Mail Archive: PMP> Novell Channel Type Info

PMP> Novell Channel Type Info

Scott A. Isaacson (Scott_Isaacson@novell.com)
Wed, 16 Apr 1997 12:57:57 -0600

Some comments about the draft and channel type info. Sorry to raise
some questions about Channel Type and Channel Info again after all of
these nice quite, peaceful months with no comments...

General Question:
There is a wide mix of Channel types defined: some relatively high in a
layered protocol stack (application protocols) and some lower
(transports) and some even lower (hardware interfaces). What if some
of the higher layer application protocols can run over multiple transports?
Do we need to put into each channel type info which transport it is
currently configured to run over or which transports it may run over or
do we not define which transports are used? It is easy for some (FTP
will run over TCP), but for some of the Netware channel types (PServer
and NDPS) they will run over TCP or SPX. What do we include in the
channel info for these channel types?

1. Page 37
Editorial: The use of the term PServer has several changes in
capitalization: Pserver, PServer. Make them all consistent. Suggest
PServer
chNetwareRPrinter(9), -- Novell, Inc.
-- prtChannelInformation keywords:
-- Print Server Name
-- Keyword: "PServer"
-- Syntax: Name
-- Status: Mandatory
-- Multiplicity: Single
-- Description: The PServer's SAP name
--
-- Printer Number
-- Keyword: "Printer"
-- Syntax: Integer
-- Status: Mandatory
-- Multiplicity Single
-- Description: The printer number
-- There must be one PServer and one
-- Printer entry

2. Page 37
Question:
If the channel type is chPortTCP(37), the only parameter identified for
channel info is "port". Is it assumed that the IP address is already
known? Also for all of the other TCP/IP based channels (FTP, HTTP,
etc.), is it assumed that the IP address is already known because you
are using SNMP to talk to the Printer? What if you are using SNMP over
IPX to get the at the MIB, is there somewhere else to ask it its IP address?

I ask this because if the channel type is this one, chNetwareRPrinter(9),
the transport protocol used is SPX. Do you also want to know the full
IPX/SPX address for this node, i.e., net:node:socket?
Should we add a paramenter called "Address" or is the IPX/SPX address
obtainable from somewhere else?

3. Page 37 an 38
There has been some discussion lately about this. Bill W. proposed
something recently that I have just now had a chance to take a
better look at and I have some revisions to his suggestion:

chNetwarePServer(10), -- Novell, Inc.
-- prtChannelInformation keywords:
-- Server Name
-- Keyword: "Server"
-- Syntax: Name
-- Status: Mandatory
-- Multiplicity Single
-- Description: The name of the server for
-- which the PServer is defined
--
-- PServer
--
-- Name: "PServer"
-- Syntax: Name
-- Status: Mandatory
-- Multiplicity Single
-- Description: The Bindery name of the
-- PServer
--
-- NDS Tree
--
-- Keyword: "NDSTree"
-- Syntax: Name
-- Status: Mandatory
-- Multiplicity Multiple
-- Description: The NDS Tree name
--
-- PServer
--
-- Keyword: "NDSPServer"
-- Syntax: Name
-- Status: Mandatory
-- Multiplicity Single
-- Description: The fully qualified name
-- of the PServer object in the tree
--
-- There must be exactly one Server and
-- one PServer entry or exactly one NDSTree
-- and one NDSPServer Entry

4. Page 108
The following line:
-- Netware Print Server SPX/IPX based channel
should probably be:
-- Netware Print Server NCP based channel
See comments below about NCP over IPX and IP.

5. Page 107
Page 107 states:
"-- The Print Job Delivery Channel table describes the
-- capabilities of the printer and not what is currently being
-- performed by the printer"
In the next release of IntranetWare, NCPs will be able to run over both IP
and IPX. When that is the case, shouldn't the channel info also include
the possible IP address as well as the IPX address or just the fact that it
can run over IP or IPX? This relates to my earlier questions about where
the IP and IPX addresses are retrieved: are they just known or ar the
queried in a MIB someplace?

Do we need to add something like:
-- Keyword: "Protocol"
-- Syntax: Name
-- Status: Mandatory
-- Multiplicity Multiple
-- Description: Either "IP" or "IPX" or both
--
6. Page 41
Will anyone ever populate a channel type of just SPX as compared to
NPrinter or PServer? Why do we have chPortSPX(41) separated out?
Should it be part of chNetwareNPrinter and chNetwarePServer?

chPortSPX(41), -- Sequenced Packet Exchange (SPX)
-- socket.
-- Novell, Inc. Similar to TCP, a
-- bi-directional data pipe using
-- Novell SPX as a transport.
--
-- prtChannelInformation keywords:
--
-- Network Number
--
-- Keyword: "Net"
-- Syntax: HexString
-- Status: Mandatory
-- Multiplicity Single
-- Description: The network number
--
-- Node Number
--
-- Keyword: "Node"
-- Syntax: HexString
-- Status: Mandatory
-- Multiplicity Single
-- Description: The Node Number
--
-- Socket Number
--
-- Keyword: "Socket"
-- Syntax: HexString
-- Status: Mandatory
-- Multiplicity Single
-- Description: The SPX socket number
-- There must be exactly one "Net" and one
-- "Node" and one Socket entry. A HexString
-- and one "Socket" entry. A HexString is a
-- binary value represented as a string of
-- ASCII characters using hexadecimal

7. Page 42
NDPS can run over TCP or SPX. Do I need to add a parameter to chNDPS
to describe which transports are possible or is that the purpose of this
channel info?

That all for now,
Scott
************************************************************
Scott A. Isaacson
Print Services Consulting Engineer
Novell Inc., 122 E 1700 S, Provo, UT 84606
V: (801) 861-7366, (800) 453-1267 x17366
F: (801) 861-4025, E: scott_isaacson@novell.com
W: http://www.novell.com
************************************************************