Routing

Answer

If the set chassis network-services attribute is not configured, the following is the line card power-up rule:

• If the first PIC concentrator powered up is a DPC, then only DPCs within the box are allowed to power up.
• If the first PIC concentrator powered up is an MPC, then only MPCs are allowed to power up.

As of Junos OS Release 10.2 and later, the power-up rule has been changed to the following:

• If the set chassis network-services attribute is configured as ip at start time, any MX Series device-supported boards (such as DPC, FPC, and MPC) will boot.
• If the set chassis network-services attribute is configured as ethernet at start time, any MX Series device-supported boards (such as DPC, FPC, and MPC) will boot.
• If the set chassis network-services attribute is configured as enhanced-ip at start time, only MPCs and MS-DPCs are powered on in the chassis. Non-service DPCs do not work with enhanced network services mode options.
• If the set chassis network-services attribute is configured as enhanced-ethernet at start time, only MPCs and MS-DPCs are powered on in the chassis.

For more information, see MX Series MS-MPC and MS-MIC Service Cards Data Sheet