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You are here: Home > Managing Switches > Configuring Aruba Switches > Configuring Port Trunking and LACP on AOS-Switches

Configuring Trunk Groups on AOS-Switches in UI Groups

If you have switches provisioned in an UI group, Aruba Central enables you to configure port trunking on these switches using the UI workflows. The network administrator can configure a trunk group on switches to create one logical link or a trunk by aggregating multiple links. The trunk link functions as a high-speed link to provide increased bandwidth.

A trunk group is a set of up to eight ports configured as members of the same port trunk.

Table 1: Trunk Group Configuration Support Per Switch Platform

Aruba Switch Platform

Valid Trunk Groups

Aruba 2540 Switch Series

Trk1-Trk26

Aruba 2920 Switch Series

Aruba 2930F Switch Series

Aruba 2930M Switch Series

Trk1-Trk60

Aruba 3810 Switch Series

Trk1-Trk144

The following are some guidelines:

All ports in the same trunk group must be of the same trunk type (LACPLink Aggregation Control Protocol. LACP is used for the collective handling of multiple physical ports that can be seen as a single channel for network traffic purposes. or trunk.)

The names of the trunk groups include the prefix Trk followed by the numbers in a sequential order. For example, Trk1, Trk2 and so on.

When STPSpanning Tree Protocol. STP is a network protocol that builds a logical loop-free topology for Ethernet networks. is enabled on the switch, the STP configuration is applied for all ports at the trunk group level. Individual ports cannot be configured for STP or VLANVirtual Local Area Network. In computer networking, a single Layer 2 network may be partitioned to create multiple distinct broadcast domains, which are mutually isolated so that packets can only pass between them through one or more routers; such a domain is referred to as a Virtual Local Area Network, Virtual LAN, or VLAN. operation.

Adding Trunk Groups on AOS-Switches

To configure a trunk group on switches:

Ensure that the switches are onboarded and provisioned to a UI group in Aruba Central.

  1. In the Network Operations app, select one of the following options:
    • To select a switch group in the filter:
      1. Set the filter to a group containing at least one switch.

        The dashboard context for the group is displayed.

      2. Under Manage, click Devices > Switches.
      3. Click the Config icon to view the switch configuration dashboard.
    • To select a switch in the filter:
      1. Set the filter to Global or a group containing at least one switch.
      2. Under Manage, click Devices > Switches.

        A list of switches is displayed in the List view.

      3. Click a switch under Device Name.

        The dashboard context for the switch is displayed.

      4. Under Manage, click Device.

        The tabs to configure the switch is displayed.

  2. Click Interface > Trunk Groups. The Trunk Groups page is displayed.
  3. In the Trunk Groups table, click + to add a trunk group and configure the following parameters:

Table 2: Ports Page—AOS-Switches

Name

Description

 Value

Name

Indicates the number assigned to the switch port.

String.

Type

A name of the port for easy identification.

Trunk or LACP.

Untagged VLANs

If the switch ports are untagged, select a VLAN from the Untagged VLAN list.

Select from drop-down menu.

Tagged VLANs

If the switch ports are tagged, select the VLANs from the Tagged VLAN list.

Select from drop-down menu.

Ports

Select the ports for trunking. You can use up to eight ports for link aggregation. The ports in a trunk group need not be consecutive.

Select from drop-down menu.

DHCP Snooping

Select the status of port to filter DHCPDynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  messages received at the port.

Trust or Untrust. Default is Untrust.

 
  1. Click OK.
  2. Click Save Settings.

Editing Trunk Groups on AOS-Switches

To edit details of a trunk group, point to the row for the trunk group, and click the edit icon and configure the parameters.

Deleting Trunk Groups on AOS-Switches

To delete a trunk group, point to the row for the trunk group, and click the delete icon.