Hitachi 3100, Network Administration Manual

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VLAN interfaces
A physical network can be partitioned into multiple, isolated distinct
broadcast domains called virtual LANs or VLANs.
An HNAS server can provide access to a VLAN using a VLAN interface on an
aggregate interface. Administrators can create a VLAN interface for each
tagged VLAN for each aggregate interface over which the HNAS needs to
communicate. For example, VLAN 1 on ag1 is different from VLAN 1 on ag2.
Note: If an address is assigned to a VLAN interface, the server discards
untagged packets for that address. Therefore, do NOT create a VLAN
interface for the native or otherwise untagged VLAN, as it can result in a loss
of connectivity.
Non-file serving interfaces
A NAS server provides two 10/100/1000 Ethernet non-file serving interfaces
as follows:
• eth1
Network interfaces 19
Hitachi NAS Platform Network Administration Guide