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Remote Configuration of P4 Device
Neruda, Jakub ; Kučera, Jan (referee) ; Wrona, Jan (advisor)
Administration of a large network from a central node with a vendor independent API is quite important issue these days. The concept of SDN was truly helpful with realization of the solution, namely in the form of the OpenFlow protocol. Nowadays, a P4 language is gaining momentum, primarily thanks to its ability to describe whole packet processing pipeline and also for the P4 Runtime, solution to the distributed network configuration. CESNET association is one of the research groups starting to support P4 in their network cards beloging to the Combo series. In this work, an API was designed for these cards, aimed at the dynamic flow table configuration. This API was used for implementation of a basic support of the Combo cards in the P4 Runtime.
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P4.16 Compiler Using High Level Synthesis
Neruda, Jakub ; Kekely, Lukáš (referee) ; Martínek, Tomáš (advisor)
The P4 language is currently a hot topic in the field of network administration due to its capability to program the functionality of network devices. This language is still in development and its last revision P416 drastically changed not only the language features and syntax, but also the underlying compiler. The CESNET association supports the development of the P4 language and thus they also need to support the new standard. This work examines possible problems tied to migration, namely issues related to translation of high-level user-defined actions into VHDL description, with the help of High-level Synthesis (HLS), instantiation of so-called extern objects and the support of atomic sections. The text discusses possible ways of interconnecting the HDL components and organisation of their memory space in order to support configuration from software at runtime. The architecture of the p4c compiler is also described, complete with code examples implementing core classes participating in the compilation process. The last part of the work showcases the usage of Vivado HLS for optimizing C++ code in order to get maximum performance from the resulting firmware.
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Remote Configuration of P4 Device
Neruda, Jakub ; Kučera, Jan (referee) ; Wrona, Jan (advisor)
Administration of a large network from a central node with a vendor independent API is quite important issue these days. The concept of SDN was truly helpful with realization of the solution, namely in the form of the OpenFlow protocol. Nowadays, a P4 language is gaining momentum, primarily thanks to its ability to describe whole packet processing pipeline and also for the P4 Runtime, solution to the distributed network configuration. CESNET association is one of the research groups starting to support P4 in their network cards beloging to the Combo series. In this work, an API was designed for these cards, aimed at the dynamic flow table configuration. This API was used for implementation of a basic support of the Combo cards in the P4 Runtime.
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