Virtual Channels and Interleaving
GSN Provides for 4 Virtual Channels
- 1 Message per VC
- Up to 4 Messages can go across a link at once
Messages are comprised of Micropackets
- Header Micropacket + Data Micropackets + Last Data Micropacket with Tailbit info
Micropackets from the 4 VC’s can be interleaved on a single link
Messages are prioritized across 4 VC’s
- VC0 low latency traffic
- VC3 bulk traffic