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System for Monitoring of Network Protocols
Selecký, Roman ; Dražil, Jan (referee) ; Kořenek, Jan (advisor)
It is necessary to monitor networks namely for diagnostics, troubleshooting, detection of anomalies and suspicious header encapsulations. This thesis aims to design and implement a system for monitoring protocol structure on 10 Gb networks, which will be able to capture packets based on the sequence of encapsulated protocols. To achieve requested throughput some tasks like packet parsing and packet filtering were accelerated in FPGA. Flexibility is achieved by using a tool that maps P4 programs, which define packet parsing process, to VHDL language. Based on the information gained from packet parsing, flow records are created and stored via IPFIX protocol. This information is displayed through a graphical user interface in the form of protocol tree, whose nodes are associated with flow records.
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Mapping of Match Tables from P4 Language to FPGA Technology
Kekely, Michal ; Matoušek, Jiří (referee) ; Kořenek, Jan (advisor)
This thesis deals with design and implementation of mapping of match action tables from P4 language to FPGA technology. Goal of the thesis was to describe key principles, which need to be understood in order to design such a mapping and function of algorithms needed, apply these principles by implementing them and analyze the speed and memory requirements of such an implementation. Outcome provides configurable hardware unit capable of classifying packets and connection between the unit and match action tables from P4 language. The implementation is based on DCFL algorithm and requires less memory compared to HiCuts and HyperCuts algorithms while being comparably fast at worst-case scenarios.
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Packet Filtering Using XDP
Mackovič, Jakub ; Podermański, Tomáš (referee) ; Grégr, Matěj (advisor)
Počítačové systémy, ktoré musia poskytovať svoje služby s vysokou dostupnosťou vyžadujú isté bezpečnostné opatrenia na to, aby ostali dostupné aj pod paketovými sieťovými útokmi. Nevyžiadané pakety musia byť zahodené čo najskôr a čo najrýchlejšie. Táto práca analyzuje eXpress Data Path (XDP) ako techniku skorého zahodenia paketov a extended Berkeley Packet Filter (eBPF) ako mechanizmus rýchlej analýzy obsahu packetov. Poskytuje sa pohľad na dnešnú prax v oblasti firewallov v systémoch s linuxovým jadrom a navrhne sa systém rýchlej filtrácie paketov založený na eBPF a XDP. Do detailov popisujeme naimplementované filtračné riešenie. Nakoniec sa vyzdvihujú výhody XDP oproti ostatným súčasným technikám filtrácie paketov na sérii výkonnostných testov.
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Packet Filtering Using XDP
Mackovič, Jakub ; Podermański, Tomáš (referee) ; Grégr, Matěj (advisor)
Počítačové systémy, ktoré musia poskytovať svoje služby s vysokou dostupnosťou vyžadujú isté bezpečnostné opatrenia na to, aby ostali dostupné aj pod paketovými sieťovými útokmi. Nevyžiadané pakety musia byť zahodené čo najskôr a čo najrýchlejšie. Táto práca analyzuje eXpress Data Path (XDP) ako techniku skorého zahodenia paketov a extended Berkeley Packet Filter (eBPF) ako mechanizmus rýchlej analýzy obsahu packetov. Poskytuje sa pohľad na dnešnú prax v oblasti firewallov v systémoch s linuxovým jadrom a navrhne sa systém rýchlej filtrácie paketov založený na eBPF a XDP. Do detailov popisujeme naimplementované filtračné riešenie. Nakoniec sa vyzdvihujú výhody XDP oproti ostatným súčasným technikám filtrácie paketov na sérii výkonnostných testov.
|
|
|
System for Monitoring of Network Protocols
Selecký, Roman ; Dražil, Jan (referee) ; Kořenek, Jan (advisor)
It is necessary to monitor networks namely for diagnostics, troubleshooting, detection of anomalies and suspicious header encapsulations. This thesis aims to design and implement a system for monitoring protocol structure on 10 Gb networks, which will be able to capture packets based on the sequence of encapsulated protocols. To achieve requested throughput some tasks like packet parsing and packet filtering were accelerated in FPGA. Flexibility is achieved by using a tool that maps P4 programs, which define packet parsing process, to VHDL language. Based on the information gained from packet parsing, flow records are created and stored via IPFIX protocol. This information is displayed through a graphical user interface in the form of protocol tree, whose nodes are associated with flow records.
|
|
|
Mapping of Match Tables from P4 Language to FPGA Technology
Kekely, Michal ; Matoušek, Jiří (referee) ; Kořenek, Jan (advisor)
This thesis deals with design and implementation of mapping of match action tables from P4 language to FPGA technology. Goal of the thesis was to describe key principles, which need to be understood in order to design such a mapping and function of algorithms needed, apply these principles by implementing them and analyze the speed and memory requirements of such an implementation. Outcome provides configurable hardware unit capable of classifying packets and connection between the unit and match action tables from P4 language. The implementation is based on DCFL algorithm and requires less memory compared to HiCuts and HyperCuts algorithms while being comparably fast at worst-case scenarios.
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