System Virtual Routers

The system VRs are the three VRs created at boot-up time. These system VRs cannot be deleted or renamed. They are named VR-Mgmt, VR-Control, and VR-Default. The following describes each system VR:

• VR-Mgmt enables remote management stations to access the switch through Telnet, SSH, and SNMP sessions; it also owns the management port. No other ports can be added to VR-Mgmt, and the management port cannot be removed from it.

  The Mgmt VLAN is created in VR-Mgmt during ExtremeXOS system boot-up. No other VLAN can be created in this VR, and the Mgmt VLAN cannot be deleted from it.

  No routing protocol is running on or can be added to VR-Mgmt.

  VR-Mgmt is called VR-0 in ExtremeXOS releases before 11.0.

• VR-Control is used for internal communications between all the subsystems in the switch. It has no external visible ports, and you cannot assign any port to it.

  VR-Control has no VLAN interface, and no VLAN can be created for it.

  No routing protocol is running on or can be added to VR-Control.

  VR-Control is called VR-1 in ExtremeXOS releases before 11.0.

• VR-Default is the default VR created by the ExtremeXOS system. By default, all data ports in the switch are assigned to VR-Default. Any data port can be added to and deleted from VR-Default.

  Users can create and delete VLANs in VR-Default. The Default VLAN is created in VR-Default during the ExtremeXOS system boot-up. The Default VLAN cannot be deleted from VR-Default.

  One instance of each routing protocol is spawned for VR-Default during the ExtremeXOS system boot-up, and these routing instances cannot be deleted.

  VR-Default is called VR-2 in ExtremeXOS releases before 11.0.