… limited repertoire of packet processing actions. We propose … later that action unit costs are
small compared to match tables. … in the packet header vector, update counters in stateful tables…

… packet processing and forwarding actions, matching facilities, arithmetic and logic operations
on registry values, etc), it nevertheless remains extensible (by adding new actions or … Units) …

… packet relevant to the computation in the packetprocessing program. Suppose the pipeline
has s match-action … Inset shows the specific actions performed on each Tofino register. (c) …

… Instead of using an exact matchaction table entry for each … actions, 25.8% hash bits for
table lookup and 24.5% packet … security features and high packet processing bandwidth, but …

… for stateful algorithms, we introduce the notion of a packet … An atom is an atomic unit of
packet processing supported … an exact match in a matchaction table, with the actions being …

… [55] claim to closely match the performance of state-of-the-art … The second one is to remove
node-crossing I/O transactions which … , stateful traffic classification and packet encryption [65]. …

… packet processor architecture at the end of the match/action … Another option is the use of
specific network processor units (… platform-independent stateful openflow applications inside …

… For such functions, determining the next state often requires multiple actions and table accesses, …
Since the match-action unit requires a PHV to calculate the table search keys in a stage …

… They do so by matching packets with hash values of their IP headers. … -critical actions are
executed in P4-based hardware. … Both, stateless and bidirectional stateful traffic are supported …

… (aka match-action pipeline) sandwiched between a packet … packet-processing applications,
a stateful firewall and a … handles data packet processing decisions, determining actions like …