Editing an aggregate interface

Procedure

  1. Navigate to the Settings panel. To edit an aggregate interface, navigate to the Settings panel using one of the following methods:
    • From the menu bar at the top of the WebSphere® DataPower® XC10 Appliance user interface, navigate to Appliance > Settings.
    • From the Home panel, click the Customize settings link in the Step 1: Set up the appliance section.
  2. Expand Aggregate Interfaces.
  3. You can add or remove the members of an existing aggregate interface. You are presented with a list of Ethernet interfaces that are members of this aggregate.
    Tip: You cannot remove a member if it is the only member, and you cannot remove a member if it is the primary.
    Important: You must ensure that the Ethernet interface is disabled before you can add it to the aggregate interface. For more information about how to enable or disable an Ethernet interface, see Managing the IBM WebSphere DataPower XC10 Appliance Ethernet interfaces.
    1. To add more members, click Add more...
    2. Select the Ethernet interface, and click OK.
  4. Change the IP address and the subnet mask in the following format <ip_address>/<subnet_mask>. The subnet mask must be entered using Classless Inter-Domain Routing (CIDR) notation. For example, 255.255.255.0 in long notation is 24 in CIDR notation.
  5. Change the Default gateway. The appliance uses source-based routing, not destination-based routing. A packet goes out to the destination on the same interface on which it was received. Each interface has its own routing table that is separate from the other interfaces. For each interface that needs to reach destinations beyond the local subnet, provide a default route that is directly reachable from that interface.
  6. Change the Maximum Transmission Unit (MTU). This field specifies the maximum size in bytes that a protocol data unit can be when communicating using an Ethernet interface. The default value is 1500 bytes, which is also the maximum allowable value for this field.
  7. Click Edit to change the aggregation policy. Depending on the aggregation policy you are changing, you are presented with the following properties.
    Aggregation policy
    active-backup
    Specifies the active-backup policy for high availability. With this policy, only one Ethernet interface (as a member of an aggregate interface) is enabled at a time. If that Ethernet interface fails, another member takes over. By default, the first Ethernet interface added to the list is designated as the primary member.
    Primary member
    Specifies the Ethernet interface you want to designate as the primary member. By default, the first Ethernet interface added to the list is designated as the primary member.
    Aggregation policy
    LACP
    Specifies the Link Aggregation Control Protocol (LACP) policy for both high availability and bandwidth. You can use the LACP policy only when its mode is not set to 'OFF'. By default, the selection logic is Stable and the transmit hash mode is layer2.
    Selection logic
    • Stable

      Specifies the Ethernet interface with the largest bandwidth. When you choose the stable setting, the Ethernet interface is selected again when an enabled aggregate interface has no members available. The stable setting is the default.

    • Bandwidth

      Specifies the Ethernet interface with the largest bandwidth. This Ethernet interface is selected again when another member is either added or removed or the aggregate interface is enabled or disabled.

    • Count

      Specifies the aggregate interface with the largest number of Ethernet interfaces as members.

    Hash policy
    • layer2

      Specifies the exclusive OR (XOR) result of MAC addresses to generate a hash.

    • layer2+3

      Specifies the XOR result of MAC addresses and IP addresses to generate a hash.

    • layer3+4

      Specifies the XOR result of IP addresses and port numbers to generate a hash.

    Aggregation policy
    balance-tlb
    Specifies the balance-tlb policy for load balancing and high availability. This policy distributes outbound traffic according to the current load of each member. Inbound traffic always flows over to the Ethernet interface that is selected as the primary member. If the receiving Ethernet interface fails, another member takes over.
    Primary member
    Specifies the Ethernet interface you want to designate as the primary member. By default, the first Ethernet interface added to the list is designated as the primary member.
  8. Click OK.
    Important: When you edit an aggregate interface, the changes do not take effect until you restart the appliance. A restart is required for the WebSphere DataPower XC10 Appliance processes to bind to the Ethernet interface. You must disable the modified aggregate interface before restarting WebSphere DataPower XC10 Appliance. To disable the interface, expand Aggregate interfaces and locate the aggregate interface you just modified. Clear the Enabled check box. After disabling the aggregate interface, you must run the clear-all and device-restart commands in the command line interface. If you do not run these commands, changes will not take effect.
Parent topic: Managing the IBM WebSphere DataPower XC10 Appliance Ethernet interfaces
Related tasks:
Deleting an aggregate interface
Adding an aggregate interface
Managing the IBM WebSphere DataPower XC10 Appliance Ethernet interfaces
Shutting down or restarting the appliance from the user interface
Using the command line interface to run operations on your appliance
Monitoring activities with tasks