Joel M. Halpern

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Software-Defined Networking (SDN) is an emerging network architecture where the network control plane is decoupled from the forwarding plane and is programmable via an open protocol. Forwarding and Control Element Separation (Forces) first and OpenFlow later are the prevailing protocols that enable this separation. The differences between the two stem from(More)
This contribution gives a brief overview of technical issues for PNNI Augmented Routing (PAR). PAR may be thought of as a method for bootstrapping and maintaining an overlay for the purpose of running layered routing for IP (and other internetwork level protocols) over ATM. This requires that ATM-attached routers (routers and route servers which have an(More)
This contribution discusses options for routing when running IP and other internet level protocols over ATM. The options discussed include layered routing, PNNI augmented routing, and Integrated PNNI. Each of these options are compatible with other related work, including MPOA and NHRP. We briefly consider the tradeoffs between each option, and observe that(More)
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