Hacking V2801F, TWCGPON657 & DFP-34X-2C2 to suite your ISP Fiber
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3.0 KiB

2.5Gb Compatibility

In this list, help you to find and build 2.5Gbps ONU for your 1Gbps+ Fiber Subscription.

Main goal is to reduce bufferbloat due to flooding 1GbE Port.

Also useful for 2.5Gbps Subscriber who to want to replace stock ONU

2.5Gb Stick

Stick SoC Note
V2801F RTL9601CI V2801F_V1.9.0-220425.tar firmware
UFiber Instant RTL9601CI missing 2500Base-X kernel support
DFP-34X-2C2 RTL9601D recommended

2.5Gb Mode

RTL960x has 3 different 2.5Gb Mode:

Command Medium Info
flash set LAN_SDS_MODE 4 HiSGMII PHY Layer 1 Transceiver
flash set LAN_SDS_MODE 5 HiSGMII MAC Layer 2 Transceiver
flash set LAN_SDS_MODE 6 2500Base-X Fiber Transceiver

Device List

Brand Type Model 2.5Gb Quirks
Mikrotik Router RB4011iGS+RM NEVER
Mikrotik Router RB5009UG+S+IN Since ROS v7.7beta4, Disable Auto Nego, Fast Sync!
MIkrotik Router CCR2004-1G-12S+2XS 98PX1012, follow @stich86 tweaks
Mikrotik Switch CRS305-1G-4S+IN 98PX1012, follow @stich86 tweaks
Marvell Router MACCHIATObin flash set LAN_SDS_MODE 6
TP-Link Router TL-XDR5480 ODI DFP-34X-2C2 as 220304 firmware
Dell PCIe BCM57810S 0Y40PH Y40PH Patched NVRAM, 4(HiSGMII PHY)
Generic Converter Realtek 2.5Gb Media Converter No tweak needed, plug and play found by @SantiagoSP
TP-Link VPN Router ER2260T flash set LAN_SDS_MODE 4, found by @randolphling


If you have tried or experiment Stick on other device that support or not, please tell us so we can update Device List

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Thank You!