Dynamic Port Assignment; Assigning A Different Vlan Id To The Default Vlan; Assigning Trunk Group Ports; Configuring Port-Based Vlans - HP 9304m Installation And Getting Started Manual

Routing will occur independently across the port-based VLANs. Because each port-based VLAN's STP domain is
a single point-to-point backbone connection, you are guaranteed to never have an STP loop. STP will never block
the virtual router interfaces within the tagged port-based VLAN, and you will have a fully routed backbone.

Dynamic Port Assignment

All Switch ports are dynamically assigned to any non-routable VLAN on HP Routing Switches. To maintain explicit
control of the VLAN, you can explicitly exclude ports when configuring any non-routable Layer 3 VLAN on an HP
Routing Switch.
If you do not want the ports to have dynamic membership, you can add them statically. This eliminates the need to
explicitly exclude the ports that you do not want to participate in a particular Layer 3 VLAN.

Assigning a Different VLAN ID to the Default VLAN

When you enable port-based VLANs, all ports in the system are added to the default VLAN. By default, the
default VLAN ID is "VLAN 1". The default VLAN is not configurable. If you want to use the VLAN ID "VLAN 1" as
a configurable VLAN, you can assign a different VLAN ID to the default VLAN.
To reassign the default VLAN to a different VLAN ID, enter the following command:
HP9300(config)# default-vlan-id 4095
Syntax: [no] default-vlan-d <vlan-id>
You must specify a valid VLAN ID that is not already in use. For example, if you have already defined VLAN 10, do
not try to use "10" as the new VLAN ID for the default VLAN. Valid VLAN IDs are numbers from 1 – 4096.
NOTE: Changing the default VLAN name does not change the properties of the default VLAN. Changing the
name allows you to use the VLAN ID "1" as a configurable VLAN.

Assigning Trunk Group Ports

When a "lead" trunk group port is assigned to a VLAN, all other members of the trunk group are automatically
added to that VLAN. A lead port is the first port of a trunk group port range; for example, "1" in 1 – 4 or "5" in
5 – 8. See "Trunk Group Rules" in the Installation and Getting Started Guide for more information.

Configuring Port-Based VLANs

Port-based VLANs allow you to provide separate spanning tree protocol (STP) domains or broadcast domains on
a port-by-port basis.
This section describes how to perform the following tasks for port-based VLANs using the CLI:
• Create a VLAN.
• Delete a VLAN.
• Modify a VLAN.
• Assign a higher priority to the VLAN.
• Change a VLAN's priority.
• Enable or disable STP on the VLAN.
EXAMPLE:
Figure 7.9 shows a simple port-based VLAN configuration using a single HP Routing Switch. All ports within each
VLAN are untagged. One untagged port within each VLAN is used to connect the Routing Switch to another
Routing Switch (in this example, an HP 9308M) for Layer 3 connectivity between the two port-based VLANs.
Configuring Virtual LANs (VLANs)
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