p4 spec v1.1 (1185620), страница 20
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Other functions// like copy-to-cpu and clone will// still occur.bitcopy_to_cpu;// Send a copy of the packet to the// slow path.bit<8>cpu_code;// Opaque identifier packaged with// the packet, when sending to the// slow path.bitrecirculate// If true, recirculate packet to// ingress parser}}Egress Port Selection, Replication and Queuing. The Standard Switch Architecture’segress mechanism is as described in Section 14. This is a mechanism that is providedby this particular architecture, rather than something inherent to P4.Cloning, Mirroring, Resubmission and Recirculation. The Standard Switch Architecture’s cloning, mirroring, and resubmission and recirculation mechanism are as described in Section 15. These involve extern object types that are provided by the associated Standard Switch library, rather than actions inherent to P4.12317.8 References17 APPENDICES17.8 References[1] Bosshart, et al.
P4: Programming Protocol-Independent Packet Processors. ComputerCommunication Review, July 2014. http://www.sigcomm.org/ccr/papers/2014/July/0000000.0000004.[2] The P4 Language Consortium web site. http://www.p4.org.124.
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