Re: [magma] Querier transition based on Group Specific Query?

Indranil Bhattacharya <myselfindranil@gmail.com> Tue, 31 January 2012 13:28 UTC

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Date: Tue, 31 Jan 2012 18:58:16 +0530
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From: Indranil Bhattacharya <myselfindranil@gmail.com>
To: Bharat Joshi <bharat_joshi@infosys.com>
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Subject: Re: [magma] Querier transition based on Group Specific Query?
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Hi Bharat,

              "IGMP Membership Query"query does not mean only General
Query. It means both GQ and GSQ. Anything on this?

Thanks,
Indranil

On Tue, Jan 31, 2012 at 4:33 PM, Bharat Joshi <bharat_joshi@infosys.com>wrote:

> Hi Indranil,
>
>         I think a router should always be looking at general queries.
>
>         This is what is available in RFC 2236:
>
> >>>
>
>   The following three events can cause the router to change states:
>
>   - "query timer expired" occurs when the timer set for query
>     transmission expires.
>
>   - "query received from a router with a lower IP address" occurs when
>     an IGMP Membership Query is received from a router on the same
>     network with a lower IP address.
>
>   - "other querier present timer expired" occurs when the timer set to
>     note the presence of another querier with a lower IP address on the
>     network expires.
>
> <<<
>
>     The second point clearly says that it should be an "IGMP Membership
> Query" which can trigger a change in querier state.
>
> Regards,
> Bharat
> ________________________________________
> From: magma-bounces@ietf.org [magma-bounces@ietf.org] On Behalf Of
> Indranil Bhattacharya [myselfindranil@gmail.com]
> Sent: Tuesday, January 31, 2012 8:56 AM
> To: magma@ietf.org
> Subject: [magma] Querier transition based on Group Specific Query?
>
>  Hi,
>
>   In the querier transition state machine, RFC 2236 only mentions 'Query'
> and does not specify GQ or GSQ. Can a querier transition take place based
> on GSQ? Or is it okay to for a querier to ignore GSQ? Can anyone please
> help me with this?
>
> Thanks,
> Indranil
>
>
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