Which four statements about reserved VLANs in Cisco NX-OS are true?

Which four statements about reserved VLANs in Cisco NX-OS are true? (Choose four.)
A. The range of reserved VLANs cannot be changed.
B. The number of reserved VLANs is 96.
C. A change to the range of reserved VLANs can be performed only in the VDC default.
D. A write-erase procedure restores the default reserved VLAN range.
E. The number of reserved VLANs is 128.
F. A reload is needed for changes to take place.
G. The configuration must be saved for changes to take place.

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One thought on “Which four statements about reserved VLANs in Cisco NX-OS are true?

  1. The software allocates a group of VLAN numbers for features like multicast and diagnostics, that need to use internal VLANs for their operation. You cannot use, modify, or delete any of the VLANs in the reserved group. You can display the VLANs that are allocated internally and their associated use.

    Beginning with Cisco NX-OS Release 5.2(1), the system allocates a block of 128 reserved VLANs (3968 to 4094) for these internal uses. You can change the block of 128 reserved VLANs to occupy another range of 128 adjacent VLANs. For example, you can change the reserved block of VLANs to be 400 to 528. You cannot assign a previously created VLAN as part of the 128 range of reserved VLANs. Anytime you change the reserved block of VLANs for the device, you must do the following:

    *Enter the copy running-configuration startup-configuration command
    *Reload the device

    When you change the range of reserved VLANs, the existing configurations for the new range of VLANs get deleted.
    To return to the default block of reserved VLANs (3968 to 4094), you must enter the no system reserve vlan command. The write-erase procedure does not restore the default reserved VLAN range to 3968 to 4094.

    https://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/5_x/nx-os/layer2/configuration/guide/Cisco_Nexus_7000_Series_NX-OS_Layer_2_Switching_Configuration_Guide_Release_5-x_chapter4.html#con_1273370

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