Interfaces
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Support for transceiver hardening, mixed-speed uplinks, and 1000BASE-X mode on Falcon cores (EX2300-MP, EX2300-VC, EX4000-48MP, EX4100-48MP, EX4400-24MP, EX4400-24X, and EX4400-48F)—Use hardened 10GbE SFP‑T handling to reduce CPU usage by 30 percent and improve stability across restarts. Enhancements include:
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Correct PHY initialization
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TX disabled during initialization
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Fewer auto‑negotiation restarts
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Optimized I2C locking
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Link-state caching
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Removed driver delays.
You can run 4x25 Gbps uplink modules in either uniform 25 Gbps or mixed 1 Gbps or 10 Gbps. Set the group speed for the chassis PIC 2 to 1 Gbps or 10 Gbps to enable mixed speed mode per transceiver. Set the speed to 25 Gbps for uniform 25 Gbps speed across every transceiver with that capability. The 4x10 Gbps modules operate in mixed mode always. The configuration is redundant, and the chassis PIC 2 operates in mixed-speed mode regardless of whether its speed is set to 1 Gbps or 10 Gbps, forming both 1 Gbps and 10 Gbps interfaces. 25 GbE and 10 GbE transceivers share the same SFP+ form factor, but 25 GbE transceivers are not supported in 10 Gbps ports. Inserting a 25 GbE transceiver into a 10 Gbps port does not create an interface. Always match transceiver speed to the port capability. For 1 Gbps fiber without SGMII, the device uses 1000BASE‑X automatically.
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