Subject: re:LPDA2 function for SDLC MIB

From: "Shannon Nix" <[email-masked]>
Date: Mon, 17 May 93 14:59:54 EST

On Fri, 14 May 1993 15:50:00 , Jim Cobban responded to an LPDA2 
discussion in the Data Link Switching Special Interest Group ( aiw-sig-dlsw-
[email-masked]):

>>
>>5) LPDA
>>
>>Currently the 6611 does not handle LPDA.  Given the following
>>picture, any ideas on how to make LPDA work??
>>                                                    Modem--PU2.0
>>                                                   /
>>3745 -- Modem --/                                 /
>>               /-- Modem -- 6611 ... 6611 -- Modem--Modem--PU2.0
>>                                                  \
>>                                                   \
>>                                                    Modem--PU2.0
>>
>>

  ...I've jumped over a good explanation by Jim of how LPDA2 works and how 
 QLLC PADs pass it through.  Jim continues:

>
>If the host end is a LAN, which is always true at present, then there is a
>product requirement, not specifically related to RFC1434, to be able to
>initiate an LPDA2 test on the attached [possibly multipoint] line.  Is there
>a logical way to do this with SNMP?  Should the router initiate an LPDA2 test
>automatically on certain error thresholds? Should there be MIB structures for
>the results of these diagnostics?

Jim,

There is currently an IETF working group chartered to standardize a MIB for 
SNA data link controls ( [email-masked]).  The LPDA2 
SNMP function you have described seems like a good general requirement for 
anyone implementing primary SDLC.  It therefore seems like a good 
suggestion that the IETF working group consider modelling this function 
in the SDLC MIB module.

Comments?  Has anyone modeled LPDA2 function in an SNMP MIB?

Rgds, Shannon
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