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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

1797.0. "DNA5 and DNS issues" by ANNECY::BONNIER (Jean-Luc ... EIC/T&N Annecy France) Tue Nov 12 1991 09:31

I am running DECmcc V1.1 on VMS 5.4.
Some issues on DNA5 global entities and DNS:

1. It is said in the "DECnet/OSI AM Use" manual (page 2-4) that a Node entity is
   self-creating.
   I try to manage 2 "DECnet/OSI for ULTRIX" node from MCC. These PhaseV nodes
   have been previoulsy registered in another DNS namespace. Is it the reason
   why I had to register them through IMPM ?

   Is MCC able to manage only one nameserver ?

2. From FCL, I have the following output:
   
   The first node is named dsp_ns:.aeo415 (Phase IV synonym = aeo415)

MCC> sho node aeo415
Using default ALL IDENTIFIERS

Node DSP_NS:.aeo415
AT 12-NOV-1991 15:19:50 Identifiers

Examination of attributes shows:
                                   Name = AEO825_NS:.aeo415
                                Address = {{{Network Management -- CMIP or NICE,
                                             none}
                                            {DNA Phase V Session Control,
                                             Network Management}
                                            {OSI Transport,
                                             Session Control}
                                            {OSI network or DNA Routing,
                                             49::00-3E:AA-00-04-00-9F-F9:21}}
                                           {{Network Management -- CMIP or NICE,
                                             none}
                                            {DNA Phase V Session Control,
                                             Network Management}
                                            {NSP Transport,
                                             Session Control}
                                            {OSI network or DNA Routing,
                                             49::00-3E:AA-00-04-00-9F-F9:20}}}


    The machine I am running MCC on is given the DNS namespace nickname DSP_NS.
    And the aeo415 machine is registered in the aeo825_ns namespace.

   The second node is named dsp_ns:.aeo528 (Phase IV synonym = aeo528)

MCC> sho node aeo528
Using default ALL IDENTIFIERS

Node DSP_NS:.aeo528
AT 12-NOV-1991 15:17:32 Identifiers

Examination of attributes shows:
                                   Name =
%MCC-E-FULLNAME_ERROR, error in Full Name value

%MCC-E-FULLNAME_ERROR, error in Full Name value

    What does it mean ?
    I registered this machine exactly like the first one.

3. In the Director and BMS 1.1 release notes, there is no section for DNA5
   entities. It is normal ?


Thanks.
Jean-Luc
T.RTitleUserPersonal
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1797.1MARVIN::COBBGraham R. Cobb (Wide Area Comms.), REO2-G/H9, 830-3917Tue Nov 12 1991 12:4916
Re: .2.   The  Name  attribute  gives  you the name of the node as currently
believed by the node itself.

A node  may  have zero, 1 or more than 1 name.  The ideal is 1.  My guess is
that  your  second  node has 0 names (i.e.  the node has never been told its
own  name).   In  that  case  the Name attribute is set to the null fullname
which  MCC  appears  not  to  be  displaying correctly (the DNS architecture
defines that the null fullname should be displayed as 0:.)..  If the node is
a WANrouter just issue a RENAME NODE xxxx NEW NAME xxxx command.

Note that  the  name  you use to reference a node may or may not be the same
name  that  node believes it is called.  For example the name you used might
be  a  softlink to the real name.  Or the node name may have changed without
the node being told (with a RENAME directive).

Graham
1797.2My other questions ANNECY::BONNIERJean-Luc ... EIC/T&N Annecy FranceWed Nov 13 1991 03:1017
Re: -1. Thanks Graham for your reply.
	I didn't know that a node  may  have zero, 1 or more than 1 name.  
	Although it is not a WANrouter (it is a ULTRIX host with 
	"DECnet/OSI for Ultrix"), I just issued a 
	RENAME NODE xxxx NEW NAME xxxx command and now that works !!

BUT

   1. what about the "self-creation" of the node entity as stated in the doc ?

   2. what about managing nodes defined in different nameservers ?

   3. what about the absence of DNA5 sections in the release notes ?


Thanks again.
Jean-Luc
1797.3MARVIN::COBBGraham R. Cobb (Wide Area Comms.), REO2-G/H9, 830-3917Fri Nov 15 1991 14:2317
If it  is  ULTRIX  then it is recommended that you don't just use RENAME but
use  their  configuration  script.  The script issues the RENAME for you and
does several other things that are required.


>    1. what about the "self-creation" of the node entity as stated in the doc ?

What about  it?  Node  entities  are  self-creating  --  they have no CREATE
directive,  they  just  create themselves when they boot for the first time.
What is the problem with that?

>    2. what about managing nodes defined in different nameservers ?
>    3. what about the absence of DNA5 sections in the release notes ?

No idea on those two -- I don't work on MCC.

Graham
1797.4What does CREATE mean ?ANNECY::BONNIERJean-Luc ... EIC/T&N Annecy FranceThu Nov 28 1991 04:1216
Re:-1

>    1. what about the "self-creation" of the node entity as stated in the doc ?

What about  it?  Node  entities  are  self-creating  --  they have no CREATE
directive,  they  just  create themselves when they boot for the first time.
What is the problem with that?

Graham, 
	The reason of my question is that :
In order to manage Phase V nodes from within DECmcc VMS 1.1, I had to register
them with the Iconic Map.
I understand there is no CREATE directive but when you say "create themselves",
what do you mean ? What means CREATE ?

JLuc
1797.5Create - as in LET THERE BE LIGHT!BLUMON::SYLORArchitect = Buzzword GeneratorThu Dec 05 1991 19:5814
Well, the Phase V NETMAN spec describes this in some detail. As you know, a 
create causes an entity which didn't exist before to come into being - like the
VMS Create/DIR creates a directory. But there's no directive to "create" a node.

Instead, when a piece of hardware (CPU mostly) is first booted with the
right software, it will cause an entity to come into existance that we call
a node. Now this entity probably isn't yet registered in DNS (although it 
could be), and DECmcc might not yet know about it( but it could*), still, 
the entity exists!

			Mark (once and probably future NETMAN architect)
--------------
* I think DECmcc still has the conceptual bug that it can't Register a node 
that isn't reachable on the net, hope that got fixed.
1797.6TOOK::SWISTJim Swist LKG2-2/T2 DTN 226-7102Fri Dec 06 1991 08:3812
    Keep up with the implementors, Mr Architect...
    
    Node reachability is no longer a criteria for registration (V1.2).
    
    
    
    
    p.s. We are now working on a fix to allow unreachable entities to be
    created.    :-)
    
    
    
1797.7MARVIN::COBBGraham R. Cobb (Wide Area Comms.), REO2-G/H9, 830-3917Tue Dec 10 1991 08:1414
Re: .4.   You  may  be  confusing  the  notion  of  creating  an entity with
registering an entity in the MCC map.  These are completely independent: you
can  register  non-existent  entities  (in V1.2) and you can create entities
which are not registered.

When the  hardware  boots,  it creates itself as a Node entity.  That entity
now  exists, on the network.  It does the things a node does (see the NETMAN
architecture) and is manageable (at least locally, if not remotely).

At some  other time (before or after) you register the node with MCC to make
it  appear  on the map.  That registration has no effect on the node itself:
it purely affects MCC's databases.

Graham