Virtual Routing Interfaces; Vlan And Virtual Routing Interface Groups; Dynamic, Static, And Excluded Port Membership - HP ProCurve 9304M Installation And Configuration Manual

Installation and Basic Configuration Guide
If you enable Single STP (SSTP) on the device, the ports in all VLANs on which STP is enabled become members
of a single spanning tree. The ports in VLANs on which STP is disabled are excluded from the single spanning
tree.
For more information, see "Configuring Spanning Tree Protocol (STP) and Advanced STP Features" on page 8-1.

Virtual Routing Interfaces

A virtual routing interface is a logical routing interface that HP Routing Switches use to route Layer 3 protocol
traffic between protocol VLANs.
HP devices send Layer 3 traffic at Layer 2 within a protocol VLAN. However, Layer 3 traffic from one protocol
VLAN to another must be routed.
If you want the device to be able to send Layer 3 traffic from one protocol VLAN to another, you must configure a
virtual routing interface on each protocol VLAN, then configure routing parameters on the virtual routing interfaces.
For example, to enable an HP 9300 series Routing Switch to route IP traffic from one IP sub-net VLAN to another,
you must configure a virtual routing interface on each IP sub-net VLAN, then configure the appropriate IP routing
parameters on each of the virtual routing interfaces.
Figure 11.6 shows an example of Layer 3 protocol VLANs that use virtual routing interfaces for routing.
Figure 11.6 Use virtual routing interfaces for routing between Layer 3 protocol VLANs
VE 1
VE 3
VE 2
VE 4
User-configured port-based VLAN
Protocol VLAN, IP sub-net VLAN,
IPX network VLANor AppleTalk VLAN

VLAN and Virtual Routing Interface Groups

To simplify configuration, you can configure VLAN groups and virtual routing interface groups. When you create a
VLAN group, the VLAN parameters you configure for the group apply to all the VLANs within the group.
Additionally, you can easily associate the same IP sub-net interface with all the VLANs in a group by configuring a
virtual routing interface group with the same ID as the VLAN group.
For configuration information, see "Configuring VLAN Groups and Virtual Routing Interface Groups" on page 11­
38.

Dynamic, Static, and Excluded Port Membership

When you add ports to a protocol VLAN, IP sub-net VLAN, IPX network VLAN, or AppleTalk cable VLAN, you can
add them dynamically or statically:
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