Op 31 jan. 2014, om 12:36 heeft Ole Troan <[email protected]> het volgende 
geschreven:

>>>> I can see reasons for having shared sub-layer for routing protocol and 
>>>> prefix distribution protocol. As example, in MANET we have such already: 
>>>> RFC 5444 and 5498. If we define a set of TLVs for border router 
>>>> information and prefix distribution, it can run on whatever routing 
>>>> protocol. Don't forget BGP.
>>>> 
>>>> For Homenet plug&play, I don't suggest to let configure grandma her 
>>>> favorite IGP ;)
>>> 
>>> doesn't that mean we have to pick one?
>> 
>> At least one, for Homenet. Could be OSPF for high speed links, RPL for LLN, 
>> or OLSRv2 for mix of wireless and wired links including ad hoc radio links.
>> 
>> There is something common on prefix distribution in Homenet, small 
>> office/home office networks, branch office networks, ad hoc networks and 
>> even in enterprise / campus networks. The prefix distribution protocol could 
>> be a single protocol. We better not try to converge to a single routing 
>> protocol.
> 
> how do you do a self-organizing / zero-conf network without making a choice?

I ment: We better not try to converge to a single routing protocol for Homenet, 
small office/home office networks, branch office networks, ad hoc networks and 
enterprise / campus networks.

If distributed info semantics for prefix distribution are well defined, it 
doesn't matter how it is delivered. Single encoding method helps, it is not 
absolutely required. If a box faces two routing domains, it redistributes. With 
DV style of flooding, this is simple and straightforward.

I still believe hosts shall be informed of information on border routers / exit 
links and corresponding prefix information. And I prefer hosts shall not have a 
need to snoop routing packets for that. Using a NDP extension is a no-brainer 
for me.

So yes, Homenet shall select a single routing protocol for higher data rate 
links (next to LLN routing, that one is separate).
We can check how to run a prefix distribution protocol on top of routing, or 
use another carrier (e.g. NDP).

My opinion: put the prefix distribution protocol on top of NDP, so all nodes 
are informed.

Teco


> 
> cheers,
> Ole

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