A run-time system compiles queries into a deterministic finite automaton. The automaton's transition function is then partitioned, compiled into match-action ...
Measuring the flow of traffic along network paths is crucial for many management tasks, including traf- fic engineering, diagnosing congestion, ...
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What is path queries?
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Compiling Path Queries in. Software-Defined Networks. Srinivas Narayana ... • Only record path state needed by queries. • Observation 2: Queries are regular ...
Traffic matrix. • Uneven load balancing. • DDoS source identification. • Port-level traffic matrix. • Congested link diagnosis. • Slice isolation.
These tests attempt to compile various path queries on increasingly large synthetic networks (up to 100 nodes); they track how many rules are emitted and ...
Jun 5, 2017 · The path queries language sits atop a complex system of various components from the Frenetic/Pyretic groups, as well as some external libraries.
Abstract. Measuring the flow of traffic along network paths is crucial for many management tasks, including traf- fic engineering, diagnosing congestion, ...
Mar 16, 2016 · We introduce a declarative query language for efficient path-based traffic monitoring. Path queries are specified as regular expressions over ...
Aug 22, 2014 · We introduce a query language that allows each SDN application to specify queries independently of the forwarding state or the queries of other ...
Sep 9, 2020 · A path conforms to the regular expression when the sequence of edge labels on the path, from start to end, is in the language of the regular ...