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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

5873.0. "DECmcc traffic ?" by BPSOF::MONDVAI () Wed Feb 16 1994 11:32

    Does anybody have any hints of how I can estimate the network traffic
    generated by DECmcc itself managing  100 routers over X.25 ?
    
    Gabor
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5873.1None, unless you ask...BIKINI::KRAUSEEuropean NewProductEngineer for MCCThu Feb 17 1994 04:219
>    Does anybody have any hints of how I can estimate the network traffic
>    generated by DECmcc itself managing  100 routers over X.25 ?

That's not enough information, to say the least. It heavily depends on 
what you are doing to 'manage' the routers and which network management 
protocol is involved. MCC does not generate any traffic by itself. It's 
all under your control how you setup alarms, recording, etc.

*Robert
5873.2CMIP, 1 minute delayBPSOF::MONDVAIThu Feb 17 1994 06:098
    Robert,
    
    thanks for your quick response. The routers are WANrouter 250s (CMIP),
    routable protocols: DECnet, TCP/IP. Each site has a VAX and (1-6) PCs.
    We have to monitor the state of the routers and VAX nodes every
    minutes.
    
    Gabor
5873.3Just ONE caseBIKINI::KRAUSEEuropean NewProductEngineer for MCCFri Feb 18 1994 04:3226
I did a 'show node xxx all status' and captured the traffic with a LAN
analyzer. There were 10 frames with a total of 731 bytes. Given an X.25
segment size of 64 bytes, it would account for 15 segments. A packet
size of 128 would yield 11 packets. Multiply this by the number of
VAXes/routers polled and you get a rough estimate on the amount of
traffic per poll cycle (1 minute in your case).

PLEASE don't take this as gospel. It was just a one-shot to get an idea, 
not a real proven calculation.

*Robert


IRIS capture data                                                     Page   1
MCC> SHOW NODE XXX ALL STATUS                                02/18/94 10:26:34

 60  NSP ConnAck  D=206D
 60  NSP ConnCfrm D=206D S=0091 SEGSIZE=1459
 60  NSP LinkSvc  D=0091 S=206D ACKOTH=0 SEG=1 REQD=0
 60  NSP LinkSvc  D=206D S=0091 ACKOTH=1 SEG=1 REQD=127
 60  NSP OthAck   D=0091 S=206D NUM=1
 80  NSP BeginEnd D=0091 S=206D ACKDAT=0 SEG=1 LEN=33 DLYOK
171  NSP BeginEnd D=206D S=0091 ACKDAT=1 SEG=1 LEN=124 DLYOK
 60  NSP LinkSvc  D=206D S=0091 ACKOTH=1 SEG=2 REQD=1
 60  NSP OthAck   D=0091 S=206D NUM=2
 60  NSP DataAck  D=0091 S=206D NUM=1
5873.4ThanksBPSOF::MONDVAIMon Feb 21 1994 09:595
    Robert,
    
    thanks again, this is enough to start with.
    
    Gabor