Pipeline Stages

Hello World Reference Pipeline User Guide (UG1669)

Document ID
UG1669
Release Date
2024-02-15
Revision
1.1 English

Pipeline Stages

Figure 1. SSDK Hello World Reference Pipeline Overview

The two stages of the pipeline are:

  • Ingress
  • Egress

The following table shows the Ingress stages:

Table 1. Ingress Stages
Stage Function Description
0 LIF Preserve LIF properties in metadata for later processing
0 Key_Native Generate flow-key using outer packet header
1 Key_Tunneled Generate flow-key using inner packet header for VXLAN encap cases
1 Device Preserve device properties in metadata for later processing
2 P4I_Init INIT function for P4 Ingress pipeline
5 NACL Lookup NACL policy rules for flow-miss cases
6 Inter_Pipe Wrap up P4-Ingress pipeline processing and prepare for next pipeline processing
7 Drop Drop

The following table shows the Egress stage:

Table 2. Egress Stage
Stage Function Description
0 P4E-Init INIT Function for P4 Egress pipeline