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Routing

What is the default power-on sequence when line cards with Junos Trio chipsets are in the same chassis with other types of line cards?

by Juniper Employee on ‎01-27-2016 10:57 AM - edited on ‎09-21-2017 09:31 AM by Administrator Administrator (785 Views)

Question

What is the default power-on sequence when line cards with Junos Trio chipsets are in the same chassis with other types of line cards?

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