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- Support "point-to-point" and "network" mode
- "point-to-point" by default (better logic optimization)
- 3 layer of Ethernet:
- Layer1: PHY
- Layer2: MAC
- Layer3: PGP ETH V1
Layer 3 Ethernet framing
- 512-bit header
- Simplify the logic for 100GbE MAC interface (no AxiStreamShifting required)
- Chuck up the stream to MAX_SIZE=1024B (default)
- 92.1% efficient = 1024B/(1024B + 4B FCS + 12B intergap + 8B preamble + 64B PGP Ethernet Header)
- 95.9% efficient = 2048B/(2048B + 4B FCS + 12B intergap + 8B preamble + 64B PGP Ethernet Header)
- 97.9% efficient = 4096B/(4096B + 4B FCS + 12B intergap + 8B preamble + 64B PGP Ethernet Header)
- 98.9% efficient = 8196B/(8196B + 4B FCS + 12B intergap + 8B preamble + 64B PGP Ethernet Header)
- Smaller MAX_SIZE lower the latency for publishing the virtual channel "pause" status to the remote side
- Use the MAC's FCS for error checking
- In both point-to-point and network mode, using the global ETH pause (IEEE 802.3x) to flow control the Ethernet layer1
- Not using Priority Flow Control (IEEE 802.1Qbb)
- Virtual channel flow control done at the L3 layer
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