On EX4650 platforms, 10GBASE-T SFP (SFP-10G-T, part number 740-123734) may be properly detected at the hardware level but fail to create a corresponding logical interface (IFD) when incorrect chassis configuration is applied.

• 10GBASE-T SFP is detected in hardware:

show chassis hardware | match 734
Xcvr 42 REV 01 740-123734 ... 10GBASE-T

• Port/interface does not appear in interface list:

show interfaces terse | match xe

• Missing expected interface (example):

<error>No xe-1/0/42 interface present</error>

• Relevant error logs found:

"IFD creation skipped"

This issue occurred due to incorrect use of channel-speed configuration on non-channelized 10G ports

The channel-speed parameter is only intended for:

• Channelizable ports that support breakout into multiple child interfaces

Applying it to standard 10G SFP ports prevents interface creation.

Please remove the incorrect configuration for 10G port ranges:

delete chassis fpc 0 pic 0 port-range X Y channel-speed 10g

After removing the incorrect configuration:

show interfaces terse | match xe
xe-0/0/X up up