[Search for users] [Overall Top Noters] [List of all Conferences] [Download this site]

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

1318.0. "duplicate node address on the network " by HGSWS1::SUSANCHAN () Wed Aug 07 1991 01:07

Is there any network management tools that can detect duplicate node name
and node address on the network?

Thanks,
Susan
T.RTitleUserPersonal
Name
DateLines
1318.1a good problemENUF::GASSMANWed Aug 07 1991 12:2210
    This problem will probably be one of the ones displayed at Interop, in
    the SNMP 'bad-boy' section.  There is a bakeoff of sorts going on, to
    see which managers can find which problems.  The only tool that I've
    seen do this to any degree was the vitalink bridge manager, which could
    detect nodes with the same ethernet address on both sides of a vitalink
    bridge.  This would work with DECnet, cause a DECnet address effects
    the ethernet address, but in IP, there is no relationship.  I don't
    think the problem has been solved - but at interop, we'll see.
    
    bill
1318.2What is the plan? HGSWS1::SUSANCHANWed Aug 21 1991 07:366
Is there any plan on detecting duplicate either IP address or DECnet node
address through DECmcc?

Thanks
Susan
1318.3BSYBEE::EGOLFJohn C. Egolf LKG2-2/T02 x226-7874Wed Aug 21 1991 08:508
	Susan,

	The answer  is "yes", but we don't have a timeframe or specific
	functionality.

	This is one  of those things that "we gotta do", it just hasn't
	been nailed down as  to who and when.  We have work with others
	within Digital to get the function performed.
1318.4Not solved - yetENUF::GASSMANThu Aug 22 1991 16:4911
    Someone also has to figure out HOW!?  This is a problem that plagues
    both DECnet and IP network managers.  Most approaches at solving the
    problem resolves around poking at smart lan probes and bridges to see
    where the device may be hiding.  Someone is going to make a bundle if
    they figure out the solution first, and get it to market before telling
    everyone how it's done.  HP has a new tool out called the "network 
    advisor" that will find things like IP nodes that have the wrong 
    broadcast address and such, but I haven't seen them brag about the
    duplicate address problem yet.  The price is around $20K for the tool,
    hinting that the 'symptom finder and problem solving' applications can 
    command a higher price than 'statistics and threshold' systems.
1318.5Another opinionYOSMTE::SITZ_GLMon Aug 26 1991 12:5117
    re .3 & .4
    John, Bill,
    
    I have two types of customers who look at DECmcc: Type one are
    "management" people who are not very technical.  Type two are "network
    management" people who are usually very technical.  100% of the "type
    two" people ask about duplicate address detection. Nearly half of the
    "type one" people ask the same question.
    
    Opinion:  Customers want/need this very badly.  We should have a
    definate plan and plenty of resources to develop it.  Bill is correct,
    customers will pay a lot of $$$ for this functionality.
    
    Regards,
    
    Glen R.
    
1318.6We know how to detect duplicatesCAPN::SYLORArchitect = Buzzword GeneratorThu Sep 12 1991 22:4311
    Re .4:
    
    Yes, we know how :-)
    
    Seriously, we spent a fair amount of time on this in the design of
    Phase V. A pair of DECnet nodes with the same address or name can be
    detected using SYSID, and/or some of the events a node emits. I won't give
    the details here. When someone wants to implement/design code to do
    this, contact me.
    
    	Mark
1318.7CADSYS::LEMONSAnd we thank you for your support.Thu Sep 10 1992 15:496
I really don't want to write the code myself.  What is the status of a 'real'
software engineer or programmer doing the job, such that I can be sold to a
customer?

Thanks!
tl
1318.8see 2861.*TOOK::MCPHERSONLife is hard. Play short.Fri Sep 11 1992 16:002
DCL 'starter' procedure in 2861.5