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request virtual-chassis member-id set


Syntax (MX960, MX2010, and MX2020 Routers)


Assign (set) a member ID and, optionally, a slot count to a router or switch that you want to add as a member of a Virtual Chassis configuration.


Issuing the request virtual-chassis member-id set command causes the device to reboot, and requires you to confirm that you want to proceed with this operation. If you do not confirm the operation, the software cancels the command. After the reboot all MPCs remain powered off until the Virtual Chassis port connection is configured.


member member-id

Assign the numeric value that identifies a member router or switch in a Virtual Chassis configuration. When you assign a member ID to a router or switch, assign the same member ID defined for this device in the preprovisioned configuration. Replace member-id with the value 0 or 1.

slots-per-chassis slot-count

(MX960, MX2010, and MX2020 routers) (Optional) Identify the number of chassis slots in the Virtual Chassis member router. To ensure that a Virtual Chassis consisting of an MX2020 member router and either an MX960 or MX2010 member router forms properly, you must explicitly set the slot-count value for the MX960 router or MX2010 router to 20 to match the slot count of the MX2020 router.

  • Values:

    The valid values for slot-count are as follows:

    • MX960 router: 12 or 20

    • MX2010 router: 12 or 20

    • MX2020 router: 20

  • Default:

    The default values for slot-count are as follows:

    • MX960 router: 12

    • MX2010 router: 12

    • MX2020 router: 20

Required Privilege Level


Sample Output

request virtual-chassis member-id set (Assigning a Member ID)

request virtual-chassis member-id set (Assigning a Member ID and Slot Count)

Release Information

Command introduced in Junos OS Release 11.2.

slots-per-chassis option added in Junos OS Release 15.1 for MX960 routers, MX2010 routers, and MX2020 routers.