- *From*: Wendy Roome <w.roome at alcatel-lucent.com<[email protected]> > - *To*: <alto at ietf.org <[email protected]>> - *Date*: Mon, 27 Jan 2014 15:38:35 -0500
------------------------------ As for your specific questions, (1) Is this what¹s meant by the ³multiple switch model²? I believe so, although this graph is a very simple example. My take is that with the ³single switch² model, we think of every host on the planet connected by a dedicated line to one central switch (with a LOT of ports). That¹s the ³blob² model, where we show the net as a cloud with lots of devices connected to it, and no idea about the blob¹s internal structure. The ³multiple switch² model simply exposes some of the network blob¹s internal structure. [Qin]: I believe such network blob's internal structure is expressed in the form PID properties extension or endpoint properties extension.
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