キュー（QoS） パケット書換 Process Logic Match Table Process Logic Match Table Process Logic Match Table Switch Dataplane データプレーンの挙動をプログラムできる言語 パーサー（ヘッダ解析） マッチテーブル （レイアウト・メモリ配分） アクション（処理内容）
"How We Might Get Humans Out of the Way - Keynote by Nick McKeown", ONF Connect 2019 https://www.opennetworking.org/onf-connect-2019-resources/ https://www.opennetworking.org/wp-content/uploads/2019/09/Connect-2019-Nick-McKeown.pdf スイッチで実現したい機能 ⇒ ASICの機能 ASIC の機能 ⇒ スイッチが実現可能な機能
"How We Might Get Humans Out of the Way - Keynote by Nick McKeown", ONF Connect 2019 https://www.opennetworking.org/onf-connect-2019-resources/ https://www.opennetworking.org/wp-content/uploads/2019/09/Connect-2019-Nick-McKeown.pdf ASIC の機能 ⇒ スイッチが実現可能な機能 スイッチで実現したい機能 ⇒ ASICの機能
"How We Might Get Humans Out of the Way - Keynote by Nick McKeown", ONF Connect 2019 https://www.opennetworking.org/onf-connect-2019-resources/ https://www.opennetworking.org/wp-content/uploads/2019/09/Connect-2019-Nick-McKeown.pdf ASIC の機能 ⇒ スイッチが実現可能な機能 スイッチで実現したい機能 ⇒ ASICの機能 実現可能な ユースケースの数 トップダウンの力
P4 and P4Runtime Technical Introduction and Use Cases for Service Providers" https://events.linuxfoundation.org/wp-content/uploads/2017/12/Tutorial-P4-and-P4Runtime-Technical-Introduction-and-Use-Cases-for-Service-Providers-Carmelo-Cascone-Open-Networking-Foundation.pdf https://p4.org/specs/
and P4Runtime Technical Introduction and Use Cases for Service Providers" https://events.linuxfoundation.org/wp-content/uploads/2017/12/Tutorial-P4-and-P4Runtime-Technical-Introduction-and-Use-Cases-for-Service-Providers-Carmelo-Cascone-Open-Networking-Foundation.pdf method / message を規定 schema (data) を規定
"method" と "message" を定義 p4runtime.proto service P4Runtime { // Update one or more P4 entities on the target. rpc Write(WriteRequest) returns (WriteResponse) { } // Read one or more P4 entities from the target. rpc Read(ReadRequest) returns (stream ReadResponse) { } // Sets the P4 forwarding-pipeline config. rpc SetForwardingPipelineConfig(SetForwardingPipelineConfigRequest) returns (SetForwardingPipelineConfigResponse) { } // Gets the current P4 forwarding-pipeline config. rpc GetForwardingPipelineConfig(GetForwardingPipelineConfigRequest) returns (GetForwardingPipelineConfigResponse) { } // Represents the bidirectional stream between the controller and the // switch (initiated by the controller), and is managed for the following // purposes: // - connection initiation through master arbitration // - indicating switch session liveness: the session is live when switch // sends a positive master arbitration update to the controller, and is // considered dead when either the stream breaks or the switch sends a // negative update for master arbitration // - the controller sending/receiving packets to/from the switch // - streaming of notifications from the switch rpc StreamChannel(stream StreamMessageRequest) returns (stream StreamMessageResponse) { } }
and P4Runtime Technical Introduction and Use Cases for Service Providers" https://events.linuxfoundation.org/wp-content/uploads/2017/12/Tutorial-P4-and-P4Runtime-Technical-Introduction-and-Use-Cases-for-Service-Providers-Carmelo-Cascone-Open-Networking-Foundation.pdf
Stats etc.） P4Runtime provides a flexible mechanism for configuring the forwarding pipeline on a network switch. gNMI is a framework for network device management that uses gRPC as the transport mechanism. Open Sourced on 2019年9月10日 https://github.com/stratum/stratum
Switch ASIC 機械可読（API自動生成可能）なネットワーク挙動を記述する契約としてP4を利用 ONF Connect 2019 "P4 on FPM Switches with Stratum" https://www.opennetworking.org/wp-content/uploads/2019/09/3.30pm-Max-Pudelko-Stratum-FPM-Compiler.pdf SDKLT is used to program fixed-pipeline switches using the Tomahawk chip from Broadcom.
of 100G/40G QSFP28 & 20 ports of 25G/10G SFP 28 Two Rear-Facing I/Os Supporting Powerful XEON-D Offload I/O Xilinx Virtex UltraScale FPGA I/O Tahoe 2860 32 ports of QSFP28 Control plane processor options x86 and Power PC Data plane processors options MIPS and Power PC 注：参考情報です。現在の仕様は 各メーカーにお問い合わせ下さい Edge-Core: https://www.edge-core.com/productsInfo.php?cls=1&cls2=180&cls3=181&id=335 | Interface Masters: https://interfacemasters.com/products/switch-appliances/ Wedge100BF-32X/65X 32/65 x QSFP28 ports CPU Modules Intel x86 Broadwell-DE Pentium D-1517 Memory (RAM) 4/8/16 GB SO-DIMM DDR4 Storage 32 GB M.2 SSD
One Systems P4.org Arista Cisco Apresia & Edgecore Kaloom Software P4 Workshop 2018 in Tokyo 【データプレーンプログラミングの世界】 主催：P4.org、Barefoot Networks、ネットワンシステムズ株式会社(協賛) 2018年10月23日当日の風景｜参加者100名以上
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