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request chassis system-mode



Set the operating mode of the ports to 100-Gigabit Ethernet mode on an EX4300-48MP switch. The request chassis system-mode command sets the ports to 100-Gigabit Ethernet mode by overriding the set chassis fpc fpc-slot pic pic-slot port port-number speed speed value command. This command restarts the DC packet forwarding engine (DCPFE), disables the virtual chassis ports (VCP) and brings up both ports of the uplink module to operate at 100Gbps speed. Use the show chassis system-mode command to verify configured system mode and the request chassis system-mode default-mode command to return to the default operating mode.



PIC mode configuration is 2x100Gbps. This will restart PFE and disable VCP ports.


Default-mode is the oversubscribed mode. This will restart PFE.

Required Privilege Level


Sample Output

request chassis system-mode

request chassis system-mode (EX4300-48MP)

Release Information

Command introduced in Junos OS Release 19.3R1.