Re: [Roll] updating DAO caches - a proposal

[Michael Richardson <mcr at sandelman.ca>]

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>>>>> "Richard" == Richard Kelsey <richard.kelsey at ember.com> writes:
    Richard> In a network where all nodes cache DAOs, a node that moves
    Richard> sends the contents of its cache to its new parent.  These
    Richard> propagate up the tree, with each node forwarding on only
    Richard> those prefixes which are new to its cache.  The forwarding
    Richard> stops when it reaches the least common ancestor of the
    Richard> node's old and new locations.

Please confirm... at the least common ancestor, the contents of the
cache change, but nothing is new..?

    Richard> In a mixed network, nodes with caches and nodes whose only
    Richard> caching ancestor is the root will have the same behavior
    Richard> as above.  A node without a cache will send its own DAO and
    Richard> set the Destination Advertisement Trigger to cause its

So, in effect, a node that does not cache, has a cache size of 0, so all
DAOs are always "new"

I think this works.

- -- 
]       He who is tired of Weird Al is tired of life!           |  firewalls  [
]   Michael Richardson, Sandelman Software Works, Ottawa, ON    |net architect[
] mcr at sandelman.ottawa.on.ca http://www.sandelman.ottawa.on.ca/ |device driver[
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