RFN - Remote Fault Notification Feature ICX 7150 ICX 7250 ICX 7450 ICX 7550 ICX 7650 ICX 7750 ICX 7850 Remote Fault Notification (RFN) for 1 Gbps fiber 8.0.60 8.0.30 8.0.20 8.0.95 8.0.70 8.0.10 8.0.90 Parent topic: Layer 2 Switching