Re: [Roll] Fwd: Re: WG Last Call draft-ietf-roll-trickle-mcast-02

[Don Sturek <[e-mail]>]

Hi Peter,

I still need to read the latest draft so take what I say here with that in
mind......

I was hoping that we could support not using IP in IP tunneling if the
scope of the multicast transmission was only within the multi-link subnet
managed by the border router.   I was hoping that only transmission
emanating from outside the multi-link subnet, received at the border
router, with scope that includes the devices in the multi-link subnet
would require IP in IP tunneling (and vice versa in terms of multicasts
generated in the multi-link subnet with scope outside).  I haven't yet
read the draft carefully to know if this is possible.

Don


On 10/30/12 1:34 AM, "peter van der Stok" <[e-mail]> wrote:

>Hi Don,
>
>and more specifically under which conditions. That gives the
>possibility to choose the conditions such that the encapsulation is not
>needed.
>
>Don Sturek schreef op 2012-10-29 16:56:
>> Hi Peter,
>>
>> I think your suggested changes to the Trickle Multicast draft point
>> out
>> why IP in IP tunneling is needed.
>>
>> Don
>>
>>
>>
>> On 10/29/12 3:44 AM, "peter van der Stok" <[e-mail]> wrote:
>>
>>>
>>>Dear WG,
>>>
>>>
>>>Attached my suggestions for text modifications including some nits. I
>>>used the facilities of word to edit and comment text with traces.
>>>
>>>When writing text about MC scope and MC domain, I was puzzled by the
>>>all MPL forwarders multicast address which removes the possibility to
>>>address a given multicast group. We expect multiple (possibly
>>> disjunct)
>>>MC groups in our wireless networks.
>>>Also I failed to understand why encapsulation was necessary once the
>>>message was received by the seed.
>>>To make it possible to configure the interface with one MC scope I
>>>added the possibility to use Unicast-Prefix-based IPv6 Multicast
>>>Addresses (RFC 3306).
>>>
>>>
>>>Probably, I overlooked many aspects which make the suggestions
>>>impractical, but I hope that the intention is clear.
>>>
>>>Peter van der Stok
>>>
>>>Michael Richardson schreef op 2012-10-25 23:30:
>>>> I suggest that you propose specific text to the list to modify the
>>>> document.
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>