All things related to multicast

[Joel Jaeggli <>]

It was never clear to me why a host to router signaling mechanism had 
to be different from the router to router signaling mechanism.


On Wed, 9 Jul 2003, David Meyer wrote:

> 
>       I guess the more things change, the more they stay the
>       same. 
> 
>       So another thing occurred to me while reading the
>       Multicast Last-Mile Solutions drafts on Greg's site: Why
>       are we defining yet another ad-hoc signaling protocol
>       (that is one way to looks at these proposals)? The IETF
>       literature is littered with signaling proposals, some
>       host-based, some router-based, at varying degrees of
>       generality. 
> 
>       Straw person: why not have the host send a PATH message
>       towards the source (since it knows the source) and have
>       the first multicast capable router in the path send back
>       the its tunnel endpoint, have the host set up GRE (or
>       user space encap) to that router and ...
> 
>       What I am suggesting is we really don't have a general
>       purpose host-to-router signaling protocol (well,
>       maybe). So if we pick one of the current drafts (or a
>       hybrid, or even new), will we have to build a new
>       signaling infrastructure for the next feature not
>       supported by the directly connected routers? 
> 
>       Seems like we should be able to answer this question in a
>       more general way than is done in these drafts.
> 
>       Dave
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Joel Jaeggli          Academic User Services   

    
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