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Conference azur::mcc

Title:DECmcc user notes file. Does not replace IPMT.
Notice:Use IPMT for problems. Newsletter location in note 6187
Moderator:TAEC::BEROUD
Created:Mon Aug 21 1989
Last Modified:Wed Jun 04 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:6497
Total number of notes:27359

4468.0. "Supported modem standarts?" by HITIT::TATAROGLU () Fri Jan 29 1993 03:06

What are the supported modem standarts for DECmcc and which 
protocols should be implemented to use modems with DECmcc.

Any suggestion about model of the modem to use with DECmcc?

Thanks
Sema
                                                 
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4468.1Standards for what?TOOK::MCPHERSONpre-retinal integrationFri Jan 29 1993 08:2635
>What are the supported modem standarts for DECmcc and which 
>protocols should be implemented to use modems with DECmcc.
>
>Any suggestion about model of the modem to use with DECmcc?
>

DECmcc can support *any* modem standard. However, what sort of 'standard' are
you talking about???   Unless the incorrect 'standard' would directly affect
either 
	a) the ability of the network to function correctly, or 
	b) DECmcc's ability to manage the modem
then the issue of 'recommended modem standards' is not germane.

What is your envisioned interaction of the modem with DECmcc ? 

	- as a managed object ?	    As far as I know there are no AMs that will
	  allow DECmcc to directly manage modems, so that wouldn't matter  (RIP
	  Codex.)

	- for connecting a users's terminal ?    DECmcc certainly shouldn't
	  care about that. The only thing would be compatibility with the
	  user's presentation device and the DECmcc host computer.

	- for connecting a managed object to DECmcc?  Again, this is
	  transparent to DECmcc. I.e. it neither 'sees' nor cares about the
	  modem in this case, so standards are irrelevant (as long as the modem
	  supplies a reliable connection to the managed object.)

	- as another physical component of the network fabric?  Again, unless
	  the modem is somehow managed by DECmcc, modem standards or
	  manufacturer are irrelevant as long as they provide the expected
	  service connectivity.


/doug
4468.2my customer questions.HITIT::TATAROGLUFri Jan 29 1993 10:0524
Thank you for the info.

Let me re-state the question (which is actually a question of a customer).

1)Are there any modems which can be directly managed by DECmcc as an object ?

For instance Motorola Codex 9110 or 9310 can be managed by a proprietary sw 
from Motorola. But he does not want to implement a proprieatry network 
management sw . 

2) Our customer is curious. He wants to know whether DECmcc has an
analogous functionality. If yes with which brand(s)? Then he will be able to
select the modems he will buy accordingly.  

3) Will SNMP support by a modem enable the manageability of it by DECmcc as an
object?

Thanks

Sema



4468.3Now we're getting somewhere....TOOK::MCPHERSONpre-retinal integrationFri Jan 29 1993 10:2541
>
>1)Are there any modems which can be directly managed by DECmcc as an object ?
>

>2) Our customer is curious. He wants to know whether DECmcc has an
>analogous functionality. If yes with which brand(s)? Then he will be able to
>select the modems he will buy accordingly.  
>
    I don't know of any.  Maybe someone else out there does, though.  I do
    know this much:  *most* modems are pretty 'dumb'. I.e. they have no
    facility for outside management (except when from the DTE that is
    attached to them, and then only when they're not in use...)

    It appears that the 'smarter' modems are connected to some sort of
    management subsystem (like a management card in a rack or an outboard
    PC or workstation) via an interface than is almost always proprietary.

    This means that the modems would probably be managed via some sort of
    "Manager or Manager" schemes, most likely via an SNMP proxy agent on
    the modem management PC or 'management card' in the modem rack...

>3) Will SNMP support by a modem enable the manageability of it by DECmcc as an
>object?

    Absoultely.  However, you wouldn't need all of the MIBII stuff and you
    would need quite a few MIB extenstions to be able to manage a modem
    thoroughly...   I haven't heard of anyone implementing SNMP agents
    (even 'skinny' ones) in some of the 'fancier' modems...   It should be
    fairly straightforward and a big win with the big customers, if not the
    average onesy-twosey PC/terminal users...

    /doug


Thanks

Sema




4468.4are we back to the famed ASCII AM?SKIBUM::GASSMANTue Feb 02 1993 18:0714
    There is not yet a SNMP MIB for modems, yet with over 20,000 MIB
    attributes already defined, can it be far behind?  Some of the reason
    holding things back though is that the IP address space is running out.
    Putting everything as managable, using SNMP over an IP stack is not
    extensible.  CMOL or SNMP over 802 will probably emerge in that space 
    if anything does.  As the POLYCENTER Framework finds it's nitche in the 
    high end integration area, the ability to add things like modems, T1-muxs, 
    and other telecom like equipment that is not going to SNMP quickly is 
    needed.  A generic ASCII parser, with lots of pre-coded examples will
    be required (or is that "has been required").  There are ISVs out there
    that do this for a living, so if rapid time to market is required, it
    can be done.
    
    bill