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Conference netcad::hub_mgnt

Title:DEChub/HUBwatch/PROBEwatch CONFERENCE
Notice:Firmware -2, Doc -3, Power -4, HW kits -5, firm load -6&7
Moderator:NETCAD::COLELLADT
Created:Wed Nov 13 1991
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:4455
Total number of notes:16761

2414.0. "DEChub 90 modules management thru DECrepeaters" by BANZAY::DEQUAL () Thu Jun 22 1995 13:02

    Hi all,
    
    recently we announced DECstack with the functionality of management of
    up to 15 modules by means of a DECrepeater 90 TS or FS or a DECagent
    90. 
    
    Will this functionality available also on a DEChub 90 environment? I.e.
    does a DECrepeater 90 TS or FS can manage the remaining 7 modules
    instead of the DECagent 90?
    
    Thanks in advance for any help.
    
    Zeno
T.RTitleUserPersonal
Name
DateLines
2414.1ouiPRSSOS::PEYRACHEJean-Yves Peyrache Country Support Group FranceThu Jun 22 1995 14:091
yes
2414.2BANZAY::DEQUALThu Jun 22 1995 14:271
    OK merci
2414.3Only repeatersNETCAD::FORINOThu Jun 22 1995 14:395
    Be a bit careful here.  Remember that the DETMI (90TS) and DEFMI (90FS)
    can act as agents only for other repeaters.  If you have other types
    of devices in your hub the DETMI and DEFMI are not DECagent 90
    replacements.
    							John
2414.4Hub master limited ??PRSSOS::PEYRACHEJean-Yves Peyrache Country Support Group FranceFri Jun 23 1995 05:488
>>>If you have other types of devices in your hub

  John,

  should you little more precise , do you think about Terminal Server L and L+

  jean-yves
2414.5SLINK::HOODMaine State Bird: The black flyFri Jun 23 1995 11:043
Stacks are repeaters only.

Not John, but I play him on TV
2414.6CNN on LKGPRSSOS::PEYRACHEJean-Yves Peyrache Country Support Group FranceFri Jun 23 1995 11:398

   Which program on TV ??

    OK for Stacks but for Dechub90  ??


   jean-yves
2414.7So we don't give the wrong impression ...ROGER::GAUDETBecause the Earth is 2/3 waterFri Jun 23 1995 14:068
Yes, the 90TS and 90FS will be able to manage repeaters in the DEChub 90, but
only the repeaters.  The point here is that for those people who have DEChub 90s
with repeaters AND other devices like DECbridge 90/90FL and DECserver 90L/L+,
they can't just yank the DECagent and put in a 90TS/90FS and expect the same
management capabilities.  They will still need the DECagent somewhere on the
same LAN to manage those devices.

...Roger...
2414.8oubliPRSSOS::PEYRACHEJean-Yves Peyrache Country Support Group FranceFri Jun 23 1995 14:232
  Forget mop and RBMS code ??
2414.9Another example of a device doing things beyond it's originally intended designROGER::GAUDETBecause the Earth is 2/3 waterFri Jun 23 1995 14:457
If by that statement you are asking if RBMS and MOP management were accidentally
omitted from the 90TS/90FS, the answer is no, they were left out on purpose (or
more precisely they were never designed in).  These devices were never intended
to completely replace the DECagent 90.  After all, they're REPEATERS, not
multi-protocol management AGENTS!

...Roger...
2414.10Hum... it's reality just a technical point of view...PRSSOS::PEYRACHEJean-Yves Peyrache Country Support Group FranceFri Jun 23 1995 15:264
  Beautiful response Roger...

  Jean-Yves
2414.11The rules for 90 management??PTOJJD::DANZAKPittsburgher �Wed Jun 28 1995 09:3240
    So, if I can sum this all up - (and note that SOMEHTING like this
    should appear in the CUSTOMER guides!!!!) - anybody care to audit this
    for errors:
    
    1.) A DECagent 90 may manage up to 64 devices and 16 hubs in the
        LAN - note that this does not typically pass beyond a router.
        Elsewhere in the LAN may be located stand-alone or in a DEChub 90.
    
    2.) In order to manage a DEChub 90 you must have a DECbridge 90 or
        DECagent 90 in the hub itself to provide management services. 
        When using a DECbridge 90 only in the hub for management services 
        a DECagent 90 must be present elsewhere in the LAN to assist the
        DECbridge 90 with management services. Note that a DECbridge 90 and
        DECagent 90 may be co-located in the same hub if convenient.
    
    3.) A DEChub 90 with populated with only DECrepeaters may be managed
        by a DECrepeater 90TS or DECrepeater 90FS running firmware version
        (x.x) or greater.  The "TS" and "FS" series of repeaters can
        provide management services for other repeaters - but not other
        non-repeater hub modules.  To manage a hub with non-repeater
        modules rule 2 still applies in spite of the capabilities of the
        DECrepeater 90TS and DECrepeater 90FS.
    
    4.) The only DEChub 90 modules which may be managed stand alone are
        the DECrepeater 90TS, DECrepeater 90FS, DECagent 90.  A DECbridge
        90 may be managed stand alone when a DECagent 90 is present in the
        LAN.  (????did I miss any othersi.e. decbrouter? etc.?)
    
    Digital advantages to this approach:
    
    1.) Utilizing a DECbridge provides both management and traffic
        isolation - management in the DEChub 90 is not a pure overhead
        function.
    
    2.) The DECagent 90 manages multiple hubs, offering a savings in
        cost of management modules.
    
    
    ttfn
    j
2414.12SLINK::HOODMaine State Bird: The black flyWed Jun 28 1995 10:498
>    4.) The only DEChub 90 modules which may be managed stand alone are
>        the DECrepeater 90TS, DECrepeater 90FS, DECagent 90.  A DECbridge
>        90 may be managed stand alone when a DECagent 90 is present in the
>        LAN.  (????did I miss any othersi.e. decbrouter? etc.?)

The DECbrouter 90's, DECserver 90TL, and DECserver 90M are all self-managed
modules.  They have their own built-in SNMP agent, and the only thing the
DECagent 90 does is recognition of these modules in a hub.
2414.13See CONFIG.TXTNAC::FORRESTThu Jun 29 1995 12:205
    Also see CONFIG.TXT or HUBWATCH.TXT (includes CONFIG.TXT) in the 
    public directory - NAC::NIPG:[MANAGE]
    
    for more manageability rules.
    
2414.14What? Makes a hub unmanaged?PTOJJD::DANZAKPittsburgher �Mon Jul 03 1995 10:035
    So if I buy a new 16 port module and have managed hubs today with a
    bridge in each hub and an agent in the lan, my hub becomes unmanaged? 
    What an upgrade!?  (aarugh)
    j
    
2414.15Firmware rev. for 90TSDRAC::LEFERNANDEZLUIS ELOY FERNANDEZMon Jul 31 1995 07:4712
    
    
    Hi,
    
    what is the minimum firmware revision for the 90TS to act as bus
    master on a DEChub 90 ?
    
    Thanks,
    
    
    				Luis Eloy Fernandez
    				DECsite Barcelona (SPAIN)