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ipmc-07.txt

  • From: Grenville Armitage <gja@thumper.bellcore.com>
  • Date: Tue, 10 Oct 1995 14:34:42 -0400
  • CC: gja@thumper.bellcore.com, ip-atm@matmos.hpl.hp.com


Jim,

I'm just sorting out my mail-log from the ipmc-07 last call
and noticed that I'd failed to conclude this thread between us.
(the thread is appended).

I'd actually modify your suggested text a little further:

"Except as described in section 6.2.4, after performing any required
 database updates non-registration MARS_JOIN and MARS_LEAVE messages
 are retransmitted on ClusterControlVC.  The following fields are modified
 just prior to retransmission:

	- ar$flags.copy is set to 1.
	- ar$msn is set to the current Cluster Sequence
	  Number for ClusterControlVC (Section 5.1.4.2).

 The MARS retransmits MARS_JOIN and MARS_LEAVE messages even if
 they resulted in no change to the database."

Does this seem ok?

cheers,
gja


>>Yes, the problem is "exactly as they arrived".
>>Does something like this make any sense...
>>
>>"Except as described in section 6.2.4 and after performing
>>any required database updates, non-registration MARS_JOIN
>>and MARS_LEAVE messages are retransmitted on ClusterControlVC
>>with ar$flags.copy set to 1".
>>
>>I believe this may be better because it does not imply that
>>the ONLY change to the message is the variable ar$flags.copy.
>>
>>Jim Rubas.
>>
>>=========================================================================
>>Received: from thumper.bellcore.com by watson.ibm.com (IBM VM SMTP V2R3)
>>   with TCP; Wed, 27 Sep 95 23:25:18 EDT
>>Received: from thumper (localhost [127.0.0.1]) by thumper.bellcore.com (8.6.9
/8.6.10) with ESMTP id XAA21347; Wed, 27 Sep 1995
>>23:24:55 -0400
>>Message-Id: <199509280324.XAA21347@thumper.bellcore.com>
>>To: rubas@watson.ibm.com
>>cc: ip-atm@matmos.hpl.hp.com, gja@thumper.bellcore.com
>>Subject: Re: ipmc-07.txt
>>In-reply-to: Your message of Wed, 27 Sep 1995 15:19:32 -0400.
>>             <199509271930.AA089570258@matmos.hpl.hp.com>
>>Date: Wed, 27 Sep 1995 23:24:54 -0400
>>From: Grenville Armitage <gja@thumper.bellcore.com>
>>
>>
>>Jim,
>>
>>Are you referring to the fact that one para says "..exactly
>>as they arrived.." and the other says we modify the ar$msn
>>field as the MARS_JOIN/LEAVE passes through? Any text that
>>would be clearer?
>>
>>>>Section 6.1.2 states:
>>>>"Except as described in section 6.2.4, non-registration
>>>>MARS_JOIN and MARS_LEAVE messages are retransmitted on
>>>>ClusterControlVC exactly as they arrived (although with
>>>>ar$flags.copy set to 1), after performing any required
>>>>database updates".
>>>>
>>>>However, Section 5.1.4.2 states:
>>>>"The current CSN is copied into the ar$msn field of MARS
>>>>messages being sent to cluster members, whether out
>>>>ClusterControlVC or on an point to point VC".
>>
>>thanks,
>>gja