Configuring QSFP+ to SFP+ adapter in JunOS

Configuring QSFP+ to SFP+ adapter in JunOS

Enable the specified port on the Physical Interface Card (PIC) to perform in the specified channel speed.

set chassis fpc 0 pic 0 port 18 channel-speed 10g

Then 40g interface will break down into four 10g subinterfaces

xe-0/0/18:0
xe-0/0/18:1
xe-0/0/18:2
xe-0/0/18:3

Now just configure interface as usual

set interfaces xe-0/0/18:0 unit 0 family inet address 10.0.1.0/31

Each adapter manufacturer can have SFP+ mapped to different channel.

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