Q-Logic 8100 SERIES manual Loading the Vlan 802.1q Kernel Module, Configuring a Vlan

6–Configuring NIC Functionality in the Converged Network Adapter Configuring the NIC in a Linux Environment

Loading the VLAN 802.1q Kernel Module

In most RHEL 5 environments, the VLAN 802.1q kernel module is loaded by default. VLAN interfaces cannot be created over the QLogic adapter NIC function without the VLAN 802.1q kernel module.

To determine whether the VLAN 802.1q kernel module is loaded, issue the following command:

#lsmod grep 8021q

If the command produces no output, the VLAN 802.1q Kernel Module is not loaded. If the output is similar to Figure 6-35, the VLAN 802.1q kernel module is already loaded.

Figure 6-35. Verifying that the VLAN 802.1q Kernel Module Is Loaded

To load the VLAN 802.1q kernel module, issue the following command:

#modprobe -v 8021q

If the command produces no output, the VLAN 802.1q Kernel Module is already loaded. If the output contains the string insmod /lib/modules/2.6.18-164.el5/kernel/net/8021q/8021q.ko, the VLAN 802.1q kernel module has already been loaded.

Unloading the VLAN 802.1q Kernel Module

To unload the VLAN 802.1q Kernel Module, issue the following command:

#modprobe -r 8021q

To verify that the VLAN 802.1q kernel module has been unloaded, refer to “Loading the VLAN 802.1q Kernel Module” on page 6-53.

To display VLAN 802.1q kernel module version information, issue the following command:

#modinfo 8021q

Configuring a VLAN

NOTE:

Creating, modifying, or dissolving VLAN interfaces can reset the network connection. Do not configure VLAN interfaces on production systems.

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