Here's why an IRD returned by ALTO discovery must must have a default network map. Consider an ALTO client that gets the server URI via discovery. By definition, a discovery client must be provider-independent. Because resource ID names are provider-specific, a discovery client cannot be pre-configured with a map ID. Hence any IRD returned by discovery MUST mark one of its maps as the default. If not, a discovery client can't decide which network map to use.
Of course, there'd be no problem if ALTO discovery could return a map ID as well as a URI. But I gather that's not possible. - Wendy Roome From: "Y. Richard Yang" <[email protected]> Date: Tue, July 23, 2013 13:10 Subject: Re: [alto] Clarifying Cost Map Dependencies on a Network Map > This does imply that any ALTO server returned by the discovery protocol > must provide default-network-map. > Not sure I understand why must return a default-network-map?
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