New Contributor
New ContributorSorry, let me clarify the problem.
Core problem (this is the actual problem that needs to be solved):
- XL710 has bad connectivity with Brocade ICX6610 via 40GbE QSFP+ DAC.
- Only frames with specific sizes are received on the XL710. All packets are transmitted successfully.
- 10GbE seems to work fine.
Auxiliary problem (this one is unimportant):
- In order to debug what's going on layer 1 between the XL710 and switch, I used a Stratix V (don't have the exact part number right now) based FPGA board with two QSFP+ ports.
- FPGA board was connected between the switch and NIC and I connected two Intel 40G PHY IPs together directly.
- I used Signal Tap to view the RX'd packets and they were fine.
- There was some TX packet loss (outgoing from the FPGA, likely due to improper TX settings) but no longer a situation where all frames with a specific size would not be received, i.e. the core problem *only* arises on layer 1 when the switch and XL710 are connected directly.
