VLAN tagging is only required to be enabled on switch ports that create trunk links to other VLAN capable switches, or on ports connected to tag-capable end-stations, such as servers or workstations with ITI5100G/GF adapters.

Configuring VLANs

By default, Alteon WebSystems switches have a single VLAN configured for every port, which groups all ports into the same broadcast domain, just as if there were no VLANs at all. This default VLAN has an 802.1Q-1998 VLAN identification number of [1], with VLAN tagging for the switch port turned off.

If you are using a VLAN capable switch from another manufacturer, consult the documentation for your switch before continuing.

To configure VLANs, perform the following procedure:

Note: If you configure a VLAN for an adapter, all traffic sent or received by that adapter must be in VLANs.

1.Create the /etc/hostname.alt file(s) on the server.

There can be up to four adapters per server, and up to 64 VLANs defined per adapter.

One /etc/hostname.alt <num> file must be created for each VLAN that will be configured for each adapter on the server. Create files using the following naming format:

/etc/hostname.alt <num>

For each file, the number <num> in the filename is determined according to the table below. For example, the first adapter in the server requires a file named /etc/hostname.alt0 for its first VLAN, and a file named /etc/hostname.alt100 for its second VLAN.

Up to 64

First Adapter

Second Adapter Third Adapter

Fourth Adapter

VLANs

 

 

 

1/etc/hostname /etc/hostname /etc/hostname /etc/hostname

.alt0 .alt1 .alt2 .alt3

2/etc/hostname /etc/hostname /etc/hostname /etc/hostname

.alt100 .alt101 .alt102 .alt103

3/etc/hostname /etc/hostname /etc/hostname /etc/hostname

.alt200 .alt201 .alt202 .alt203

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