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diff --git a/docs/vpp/md-description.md b/docs/vpp/md-description.md deleted file mode 100644 index b6899564..00000000 --- a/docs/vpp/md-description.md +++ /dev/null @@ -1,87 +0,0 @@ ---- -lastproofread: '2026-02-16' ---- - -(vpp-description)= - -```{include} /_include/need_improvement.txt -``` - - -# VPP Dataplane Description - -## What is VPP in VyOS? - -VyOS supports two packet forwarding dataplanes: -- **Linux kernel dataplane** (traditional) -- **Vector Packet Processor (VPP) dataplane** (optional) - -VPP is a high-performance user space packet processor that improves -throughput for demanding network workloads. - -## Key Benefits - -**Performance Improvement** - -VPP uses vector-based packet processing instead of one-by-one handling, -delivering: -- **Higher throughput** compared to kernel forwarding. -- **Lower and more consistent latency** for time-sensitive applications. -- **Linear scaling** with additional CPU cores. - -**VyOS Hybrid Integration** - -VyOS supports both dataplanes simultaneously, providing: -- **Cross-dataplane forwarding**: Traffic can flow between the VPP dataplane - and kernel interfaces seamlessly. -- **Transparent configuration**: Same CLI commands and most services work - regardless of dataplane. -- **Gradual migration**: Enable VPP on high-traffic interfaces while keeping - others on kernel. - -## When to Use VPP - -**Consider VPP if you have:** -- High-throughput requirements -- Latency-sensitive applications requiring consistent performance - -**Stay with kernel dataplane if you have:** -- Low to moderate traffic volumes -- No latency-sensitive workloads -- Applications requiring specific features not supported by VPP Dataplane - -## Packet Processing Integration - -VPP Dataplane integration minimizes configuration changes. Features in the -kernel dataplane continue to operate there. VPP Dataplane only handles packet -forwarding for interfaces explicitly assigned to it. - -Traffic flow examples between VPP and kernel dataplane interfaces: - -```{image} /_static/images/vpp/vyos_vpp_integration.svg -:align: center -``` - - -### Green path - -Traffic between two VPP interfaces stays within VPP for maximum performance -and can use only VPP dataplane features. - -### Blue path - -Traffic between a VPP interface and a kernel interface is processed by both -dataplanes and can use features from both. - -**Note:** This path has slower performance than pure VPP or pure kernel -forwarding because packets traverse both dataplanes. - -### Red path - -Traffic between two kernel interfaces stays within the kernel dataplane without -VPP acceleration. This is the traditional VyOS dataplane operation. - -## CLI Integration - -VyOS CLI commands work with both dataplanes. Use the same commands to -configure interfaces, routing, and other features regardless of the dataplane. |
