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S1720GFR, S2700, S5700, and S6720 V200R010C00 Web-based Configuration Guide

This document describes the configuration and maintenance of device through the web network management system. The web network management system provides the functions of viewing device information and managing the entire system, interfaces, services, ACL, QoS, routes, security, and tools.
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Eth-Trunk

Eth-Trunk

An Eth-Trunk is composed of Ethernet links. The Eth-Trunk interface does not exist physically.

The Eth-Trunk has the following advantages:
  • Increasing bandwidth: The bandwidth of an Eth-Trunk interface is the total bandwidth of all member interfaces.
  • Improving reliability: When a link fails, traffic is automatically switched to other links. This ensures reliability of the entire Eth-Trunk.

Eth-Trunk Interface

An Eth-Trunk load balances incoming and outgoing traffic among multiple links and improves the bandwidth and connection reliability between two switches.

Context

You can configure Eth-Trunks in the following scenarios:
  • The bandwidth is insufficient when two switches are connected through only one link.
  • The connection reliability cannot meet requirement when two switches are connected through only one link.

Procedure

  • Query Eth-Trunk information.
    1. Choose Interface Management > Eth-Trunk > Eth-Trunk Interface in the navigation tree, and the Eth-Trunk Interface page is displayed, as shown in Figure 2-97.

      Figure 2-97  Eth-Trunk

    2. Enter the interface name, for example, 10.
    3. Click Query to display all matching records.
  • Create an Eth-Trunk.
    1. Choose Interface Management > Eth-Trunk > Eth-Trunk Interface in the navigation tree, and the Eth-Trunk Interface page is displayed.
    2. Click Create, and the Create Eth-Trunk page is displayed, as shown in Figure 2-98.

      Figure 2-98  Create Eth-Trunk

      Table 2-52 describes the parameters on the Create Eth-Trunk page.

      Table 2-52  Create Eth-Trunk

      Parameter

      Description

      Eth-Trunk name

      Indicates the name of an Eth-Trunk. This parameter is mandatory.

      NOTE:
      • The Eth-Trunk name displayed on your screen may be different from the value here.
      • After creating an Eth-Trunk, you can create another Eth-Trunk on the same Create Eth-Trunk page. Enter an Eth-Trunk name and click anywhere on the page. Set parameters of the new Eth-Trunk after the page is refreshed.

      BPDU

      Indicates whether to enable BPDU. The options are Enable and Disable. By default, BPDU is disabled.

      NOTE:

      Only the S2720, S1720GFR, S2750EI, S5700LI, S5720LI, S5700S-LI, S5720S-LI, S5710-X-LI, S5720SI, and S5720S-SI support BPDU.

      Working mode

      Indicates the working mode of the Eth-Trunk, including:
      • Manual load balancing mode

        When the bandwidth or the reliability between two devices needs to be increased and one device does not support LACP, create an Eth-Trunk in manual load balancing mode and add member interfaces to the Eth-Trunk.

      • Static LACP mode

        The links between two devices can implement redundancy backup. When a fault occurs on some links, the backup links replace the faulty ones to keep data transmission uninterrupted.

      The default mode is manual load balancing.
      NOTE:
      • Check whether the Eth-Trunk contains member interfaces before you set the working mode of the Eth-Trunk. If the Eth-Trunk contains member interfaces, the working mode of the Eth-Trunk cannot be changed.
      • The working modes on the local end and remote end must be the same.

      Min active links

      Indicates the lower threshold of the number of active interfaces. You can specify the lower threshold of active interfaces in the Eth-Trunk. If the number of active interfaces is smaller than this value, the status of the Eth-Trunk becomes Down.
      NOTE:
      • The lower threshold must be not greater than the upper threshold.
      • The lower thresholds of active member interfaces can be set to different values for the local end and remote end. If the lower thresholds at the two ends are different, the greater one is used.

      Max active links

      Indicates the upper threshold of the number of active interfaces.
      NOTE:
      • The lower threshold must be not greater than the upper threshold.
      • The upper thresholds of active member interfaces can be set to different values for the local end and remote end. If the upper thresholds at the two ends are different, the smaller one is used.
      • The value ranges of Max Active Links on different switches are different.

      Load balancing mode

      Indicates the load balancing mode of Eth-Trunk, including:
      • Destination IP
      • Destination MAC
      • Source IP
      • Exclusive-OR of source and destination IP
      • Source MAC
      • Exclusive-OR of source and destination MAC

      By default, load balancing is based on the "Exclusive-OR" result of the source and destination IP addresses.

      Link type

      Indicates the link type of an interface. The value cannot be changed.

      Jumbo

      Indicates the maximum length of a jumbo frame. If you do not enter any value, the default value is used.

      NOTE:

      The value ranges of Jumbo on different switches are different.

      Description

      Indicates the description of the created Eth-Trunk.

      Select Interface

      Adds member interfaces to the Eth-Trunk.

      NOTE:
      • Member interfaces of an Eth-Trunk must have the same interface type.
      • A member interface cannot be an Eth-Trunk.

    3. Set parameters.

      When selecting the interface:
      • If this interface is configured by other Eth-Trunks, it is unavailable and cannot be selected.
      • If this interface is not configured, you can select it.
      • If this interface is configured by other modules except shutdown and combo, the Interface Configuration Information page is displayed, as shown in Figure 2-99. You can clear the original configurations of this interface.
      Figure 2-99  Interface Configuration Information

    4. Click OK.
  • Modify Eth-Trunk
    1. Choose Interface Management > Eth-Trunk > Eth-Trunk Interface in the navigation tree to open the Eth-Trunk Interface page.
    2. Select a record that you want to modify and click to open the Modify Eth-Trunk page, as shown in Figure 2-100.

      Figure 2-100  Modify Eth-Trunk

      Table 2-52 describes the parameters on the Modify Eth-Trunk page.

      NOTE:
      • The Eth-Trunk name cannot be modified.
      • Before changing the working mode of an Eth-Trunk, ensure that the Eth-Trunk does not contain any member interfaces.

    3. Set parameters.

      When selecting the interface:
      • If this interface is configured by other Eth-Trunks, it is unavailable and cannot be selected.
      • If this interface is not configured, you can select it.
      • If this interface is configured by other modules except shutdown and combo, the Interface Configuration Information page is displayed, as shown in Figure 2-101. You can clear the original configurations of this interface.
      Figure 2-101  Interface Configuration Information

    4. Click OK.
  • Delete Eth-Trunks.
    1. Choose Interface Management > Eth-Trunk > Eth-Trunk Interface in the navigation tree to open the Eth-Trunk Interface page.
    2. Select a record that you want to delete and click Delete. The system asks you whether to delete the record.
    3. Click OK.

      NOTE:

      An Eth-Trunk cannot be deleted when it has member interfaces.

System LACP Priority

You can configure the LACP priorities in the system.

Context

Only the Eth-Trunk in static LACP mode needs to be configured with the LACP priority. The default LACP priority is 32768.

Procedure

  1. Choose Interface Management > Eth-Trunk > System LACP Priority in the navigation tree to open the System LACP Priority page, as shown in Figure 2-102.

    Figure 2-102  System LACP Priority

    Table 2-53 describes the parameters on the System LACP Priority page.

    Table 2-53  System LACP Priority

    Parameter

    Description

    Priority

    Indicates the system LACP priority. This parameter is mandatory.
    NOTE:

    A smaller value indicates a higher priority.

  2. Set the parameters.
  3. Click Apply to complete the configuration.
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Updated: 2019-04-18

Document ID: EDOC1000114003

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