Configuring Ethernet VLANs

Define one or more Ethernet Virtual Local Area Networks (VLANs) within the InfiniBand-Ethernet gateway switch. Each Ethernet switch port that will be communicating with a ClearPath Forward fabric must be configured to allow VLANs to go through it.

Creating Ethernet VLANs

Define the set of Virtual Local Area Networks (VLANs) to enable within the InfiniBand-Ethernet gateway switch:

  1. If needed, access the command line interface (CLI) for the switch. For more information, see Accessing InfiniBand-Ethernet Gateway Switch.

  2. At the prompt, execute the CLI configure terminal command to enter the configuration mode.

    enable
    configure terminal
  3. Define and enable one or more VLANs.

    For example, if you wish to define four VLANs, named (tagged) as 10, 4000, 193, and 27 respectively, do the following:

    Switch-1 [standalone: master] (config) # vlan 10
    Switch-1 [standalone: master] (config vlan 10) # exit
    Switch-1 [standalone: master] (config) # vlan 4000
    Switch-1 [standalone: master] (config vlan 4000) # exit
    Switch-1 [standalone: master] (config) # vlan 193
    Switch-1 [standalone: master] (config vlan 193) # exit
    Switch-1 [standalone: master] (config) # vlan 27
    Switch-1 [standalone: master] (config vlan 27) # exit

Configuring Allowed Traffic for Ethernet Port

Each Ethernet port on the InfiniBand-Ethernet gateway switch can be configured to allow tagged packets, untagged packets, or both, as well as whether traffic from a particular VLAN is allowed.

  1. While in configuration mode, specify the particular Ethernet port you wish to configure.

    In the following example, Ethernet port 1/28 is specified.

    Switch-1 [standalone: master] (config) # interface ethernet 1/28
  2. Configure the Ethernet port to allow type of VLAN traffic (tagged packets, untagged packets, or both), as well as traffic from multiple VLANs. Valid port switch modes are:

    • Trunk: This mode configures the port for only tagged packets.

    • Access: This mode configures the port to allow only untagged packets on the ingress Ethernet ports.

    • Hybrid: This mode configures the port to allow both tagged and untagged packets on the ingress Ethernet ports.

    In the following example, Ethernet port 1/28 is configured to only allow tagged packets, that is, trunk mode is used. It is also configured to allow the four VLANs 10, 4000, 193, and 27.

    Switch-1 [standalone: master] (config interface Ethernet 1/28) # switchport mode trunk
    Switch-1 [standalone: master] (config interface Ethernet 1/28) # switchport trunk allowed-vlan add 10
    Switch-1 [standalone: master] (config interface Ethernet 1/28) # switchport trunk allowed-vlan add 4000
    Switch-1 [standalone: master] (config interface Ethernet 1/28) # switchport trunk allowed-vlan add 193
    Switch-1 [standalone: master] (config interface Ethernet 1/28) # switchport trunk allowed-vlan add 27
    Switch-1 [standalone: master] (config interface Ethernet 1/28) # exit
    

Repeat as necessary for all Ethernet ports on the InfiniBand-Ethernet gateway switch.

Verifying Ethernet VLAN Configuration

While in configuration mode, execute the show vlan command to verify that the VLANs are set up as expected. For example,

Switch-1 [standalone: master] (config) # show vlan
VLAN    Name        Ports----    ----------  -----------------------
1       default     Eth1/18, Eth1/19, Eth1/20, Eth1/21, Eth1/22,
                    Eth1/23, Eth1/24, Eth1/25, Eth1/26, Eth1/27
10, 27, 193, 4000   Eth1/28