T.R | Title | User | Personal Name | Date | Lines |
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4468.1 | Standards for what? | TOOK::MCPHERSON | pre-retinal integration | Fri Jan 29 1993 08:26 | 35 |
| >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
|
4468.2 | my customer questions. | HITIT::TATAROGLU | | Fri Jan 29 1993 10:05 | 24 |
|
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
|
4468.3 | Now we're getting somewhere.... | TOOK::MCPHERSON | pre-retinal integration | Fri Jan 29 1993 10:25 | 41 |
| >
>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
|
4468.4 | are we back to the famed ASCII AM? | SKIBUM::GASSMAN | | Tue Feb 02 1993 18:07 | 14 |
| 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
|