System Packet Interface - Specifications

Specifications

The agreements are:

• SPI-3 – Packet Interface for Physical and Link Layers for OC-48 (2.488 Gbit/s)
• SPI-4.1 – System Physical Interface Level 4 (SPI-4) Phase 1: A System Interface for Interconnection Between Physical and Link Layer, or Peer-to-Peer Entities Operating at an OC-192 Rate (10 Gbit/s).
• SPI-4.2 – System Packet Interface Level 4 (SPI-4) Phase 2: OC-192 System Interface for Physical and Link Layer Devices.
• SPI-5 – Packet Interface for Physical and Link Layers for OC-768 (40 Gbit/s)
• SPI-S – Scalable System Packet Interface - useful for interfaces starting with OC-48 and scaling into the Terabit range