
AM456-9007B Rev 02 HP VMA SAN Gateway Installation and User Guide 151
VLAN Commands
A VLAN, or virtual LAN, is a set of nodes that are grouped together into a single
logical network, regardless of their physical location. Multiple VLANs may share
the same physical Ethernet links.
The VMA-series SAN Gateway uses a separate VLAN for low-latency, low-
bandwidth communication between the HP VMA SAN Gateways in a cluster.
Using VLAN commands, interfaces may be configured on a separate VLAN to
allow for the segregation of network and internal cluster traffic.
Network switches must be configured to provide a VLAN for cluster traffic in the
system. Each network switch port connected to a HP VMA SAN Gateway should
be configured to allow VLAN-tagged traffic for the given cluster VLAN ID.
network vlan vlan-id <vlan-id> interface <ifname>
Creates a tagged VLAN interface with <vlan-id> as the specified VLAN ID atop
the base interface
<ifname>. Valid VLAN ID values are between 1 and 4094.
A new interface is created, named
vlan# where # is <vlan-id>. The new
interface can then be configured using the
interface commands.
no network vlan vlan-id <vlan-id>
Removes the tagged VLAN interface <vlan-id> from its base interface.
show vlans [<vlan-id>] [configured]
Displays a list of the configured VLANs in the system, or information about a
particular VLAN interface if one is specified by
<vlan-id>. If configured is
specified, the configured base interface and
<vlan-id> for the VLAN interface
are shown. Otherwise the current runtime state of the VLAN interface is shown.
link-agg
Link Aggregation mode
link-agg-
layer2+3
Link Aggregation Layer 2 + 3 mode
link-agg-
layer3+4
Link Aggregation Layer 3 + 4 mode
balance-tlb
Adaptive transmit balancing
balance-alb
Adaptive load balancing
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