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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

4896.0. "Can't register an LTM listener LANbridge 150 ?" by DRAC::DSMAIL () Fri Apr 16 1993 10:07



A customer says that she can't register a LANbridge 150 that is running
as an LTM listener. The message is 'cannot communicate with target'. 
She can communicate with the bridge thru NCP.

She's running LTM V1.2 and DECmcc/BMS 1.2 + ELM AM and FM.

Before she was running BMS V1.1 and had no problems. Then she upgraded to
V1.2 and now is registering again all nodes in the network. She has no 
problem registering new FDDI bridges 500 and 600.

The question is: is there any incompatibility or restriction between LTM
and DECmcc?

Thanks for any pointer,
Herminia Codina (DS-Barcelona)
T.RTitleUserPersonal
Name		DateLines
4896.1LTM is not a bridgeRACER::daveAhh, but fortunately, I have the key to escape reality.Fri Apr 16 1993 10:2311
A LTM Listner is NOT an LANbridge 150.  So, you cannot register it
as one.  It speaks a different protocol, it does not suport RBMS, and that
is for BRIDGES, and the LTM is not a bridge.

The comment about the FDDI bridges seems to be noise, as they are bridges,
and hence should be able to be registered as such.

What you are asking is akin to saying "I cant register my DECnet node as a
Terminal Server"
4896.2TOOK::MCPHERSONDead or Canadian?Fri Apr 16 1993 11:215
> She can communicate with the bridge thru NCP.

	 Really?!?  How?

/doug
4896.3LTM Listener *does* speak multiple protocols...MOLAR::MOLAR::BRIENENNetwork Management Applications!Tue Apr 20 1993 13:2530
While it's true that a LB100/150 running LTM-Listener code provides most
of its useful data via the LTM protocol, there are other protocols supported
at the same time...

RE: Bridge vs Listener

When a LB100 or LB150 is running LTM Listener code, it "speaks" a
minimal subset of the BRIDGE (RBMS or ELMS) protocol. Just enough,
in fact, to identify it as a LTM Listener (SHOW) and to change it
back to a BRIDGE (SET and RESET).

The Bridge AM / DECmcc is supposed to support REGISTERing the LB150, 
whether it's running as an LTM or a BRIDGE. You may have found a bug 
in the Bridge AM. You might want to verify that the command:

	SHOW BRIDGE <ltm-addr> ALL ATTRIBUTES

still works as well...

RE: LTM vs NCP

LB150s running LTM-Listener code also "speak" the MOP (V3) protocol.
Specifically, it supports Request-ID (i.e. visible as a STATION from
MCC, visible from ETHERNIM), Periodic SYSID (ETHERNIM and $NICONFIG),
and Ethernet V2 Loopback (mcc STATION, ETHERNIM, and NCP LOOP CIRCUIT).


I know of no problems running LTM and DECmcc on the same system.

					Chris Brienen
4896.4No faith in SPR systemGADWAL::WOESTEMEYERWhy??...Why not!!!Wed Apr 21 1993 09:018
    Chris,
    
    Its no wonder that the CSC has no faith in the SPR system.  I did an
    SPR on this problem back on Feb. 8th.  The case number is ICA-45294.
    Guess this goes to show why we don't use the SPR system more.
    
    Steve Woestemeyer
    CSC/CS - Network Support Team
4896.5LTM BRIDGE alarm returns ILVINVVALCSC32::W_MCGAWFri Apr 23 1993 18:3414
    Hi,
    
    I have a customer with a LTM / DECmcc problem that I am not sure if it
    relates to this or not but here goes anyway.
    
    He had an alarm rule under BMS V1.2 that would check the LTM bridge for
    the BRIDGE FUNCTION characteristic.  This used to return LTM which is
    what the customer wanted to see.  He wanted to make sure no one had
    reloaded the bridge with normal bridge software.  This same alarm rule
    (now under BMS V1.3) returns a ILVINVVAL error.  Any ideas /
    suggestions?
    
    Walt McGaw
    CSC/CS Network Support
4896.6LTM and DECmcc ELM AM V1.3?NPSS::WADEBill Wade, VAXc Systems &amp; Support EngMon Aug 16 1993 11:2211
    
    I need a volunteer!
    
    Could someone with an LTM listener and DECmcc ELM AM V1.3 
    please execute the following command and reply with the results -
    
    	mcc> show bridge 'name' all characteristics
    
    Thanks,
    Bill
4896.7I'll be your volenteerBWTEAL::WOESTEMEYERWhy??...Why not!!!Mon Aug 16 1993 15:5128
Bill, 
    
    I'll be your volenteer, especially since I SPRed this problems months
    ago.  Attached is the log you requested.  A further piece of
    information.  If the Iconic map is used to do the show,  most of the
    attributes come back as --NOT RETURNED--.  One of these is ID.
    
    Steve Woestemeyer
    CSC/CS - Network Support Team
    
use verify on
!
!show bridge br.nsu_lb150 all char
!
!Bridge KEROON_NS:.br.nsu_lb150 
!AT 16-AUG-1993 12:51:23 Characteristics
!
!Examination of attributes shows:
!                          Hardware Type = DEBET LAN Bridge 150
!                            ROM Version = V1.0.0
!                   Downline Load Switch = True
!                 Downline Load Filename = "ltmlis0200"
!          Downline Load Physical Switch = False
!                  Loop Self Test Switch = False
!                     NVRAM Reset Switch = False
!                       Software Version = "V2.0"
!
exi