VLANs in Data ONTAP are implemented in compliance with the IEEE
802.1Q standard. You should keep these guidelines in mind when setting up VLANs in Data ONTAP:
- You cannot set up VLANs using the setup procedure. You must use the command line or the FilerView interface to create, change, or destroy VLANs.
- You must add the commands to create VLANs on your storage system to the /etc/rc file to make the VLANs persistent across reboots.
- You can create any number of VLANs on a NIC (supporting IEEE 802.1Q) on your storage system. However, Data ONTAP imposes a limit on the number of interfaces (including physical, vif, vlan, vh, and loopback interfaces) per storage system. See New maximum number of network interfaces for more information.
- You can create VLANs on physical interfaces and vifs.
- You can configure IPv4 and IPv6 addresses on a VLAN interface.
- You can use VLANs to support packets of different Maximum Transmission Unit (MTU) sizes on the same network interface. If a network interface is a member of multiple VLANs, you can specify different MTU sizes for individual VLANs.
- You can assign an identification number from 1 to 4094 to a VLAN.
- You must ensure that the interface on your storage system is also a member of its partner's VLANs in a cluster failover pair.
- You cannot configure any parameters except mediatype for the physical network interface configured to handle VLANs.
