On Mar 5, 2008, at 3:41 PM, Tony Li wrote:
|In the model I'm thinking about, the network (i.e. provider) would
|publish a set of path options (e.g. a map, list of potential
|waypoints, set of deflection bits, etc) for the host to consider.
|The host could then choose from among these options, with the
|expectation that its choice will be honored by the network in the
|general case. Otherwise, the network should change the set of
|options it is publishing. The provider retains control by setting
|the bounds of the allowable routing policy.
In particular, that model would allow the provider to only offer a
single
route. Would that be acceptable? I'm hearing a resounding 'no'.
I think it is reasonable that a provider might offer only a single
explicit route to a given customer, or perhaps not offer the enhanced
service at all. The new functionality is partly related to the
number of options published by the provider, but also related to the
act of making the route explicit (host becomes path aware). If the
customer has two providers, even a single explicit path from each one
starts to become useful.
R,
Dow
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