Re: [magma] Destination address in v2 leave message

Bharat Joshi <> Fri, 14 October 2011 01:56 UTC

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From: Bharat Joshi <>
To: Indranil Bhattacharya <>, Kunal Shah <>
Date: Fri, 14 Oct 2011 07:23:31 +0530
Thread-Topic: [magma] Destination address in v2 leave message
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Subject: Re: [magma] Destination address in v2 leave message
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Hi Kunal/Indranil,

         Leave message is sent to ALL-Routers address because host does not keep track of the querier.

         If host needs to keep track of querier, it will have to implement querier election algorithm and maintain a state with querier-timeout etc. which is unnecessary.

From: [] On Behalf Of Indranil Bhattacharya []
Sent: Friday, October 14, 2011 2:05 AM
To: Kunal Shah
Subject: Re: [magma] Destination address in v2 leave message

Hi Kunal,

            Non-queriers lower the group timers upon receiving group-specific query from querier. They always ignore leave messages. Please refer the last state diagram in section 7 which is for non-querier.


On Thu, Oct 13, 2011 at 11:48 PM, Kunal Shah <<>> wrote:
Non-querier does process the leave message. On receiving a leave the non-querier is going to reduce the group timer to [Max Response Time] in the packet * [Last Member Query Count] but will not send the leave. Please refer to section 7 of RFC 2236.

From:<> [<>] On Behalf Of Indranil Bhattacharya
Sent: Thursday, October 13, 2011 10:30 AM
Subject: [magma] Destination address in v2 leave message


    Can anyone please tell me the disadvantage of using queriers address as destination address in v2 leave message? Is there any advantage of sending it to Non-querier never processes leave message anyway.


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