David Sowder (Zothar) wrote: > The name to number lookup service would have to be globally unique, at > least between all of the nodes that peer with each other directly and > use that client. The IANA style is required here for that reason > (unless I'm forgetting something about Bonjour).
I'm not sure what you mean by globally unique. Let's say nodes X and Y are peers. A client on node X wants to contact the corresponding server on node Y. The IANA approach is for each service to use a well-known port. The Bonjour approach is for each node to run a lookup service on a well-known port, which can be used to look up the port of any other service. So the client on node X contacts node Y's lookup service, gives it the service name, and gets the port number. This makes it easier to deploy new services, and you can also handle multiple users running instances of the same service on the same machine, for example by using service names like chat/Alice and chat/Bob. Cheers, Michael
