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Configuration Guide - Interface Management

S1720, S2700, S5700, and S6720 V200R010C00

This document describes the principles and configurations of interfaces and provides configuration examples.

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Interface Type

Interface Type

Switch interfaces are used to exchange data and interact with other network devices. Interfaces are classified into management interfaces, physical interfaces, and logical interfaces.

  • Management interfaces

    Management interfaces are used to log in to switches for configuration and management purposes. Management interfaces do not transmit service data.

    Table 2-1 describes the management interfaces that the switch supports.
    Table 2-1  Description of management interfaces

    Interface

    Description

    Application

    Console interface

    A data connection equipment (DCE) interface that complies with the EIA/TIA-232 standard.

    The console interface is connected to the COM serial interface of a configuration terminal to set up an on-site configuration environment.

    MEth interface

    Complies with the 10/100BASE-TX standard.

    The MEth interface can be connected to a network interface of a configuration terminal or network management workstation to set up an on-site or remote configuration environment.

  • Physical interfaces

    Physical interfaces exist on interface cards and transmit service data. Physical interfaces are classified into the following types:

    • LAN-side interface: used by the switch to exchange data with network devices on LANs.
    • WAN-side interface: used by the switch to exchange data with devices on external networks.
    Table 2-2 describes the physical interfaces that the switch supports.
    Table 2-2  Description of physical interfaces
    Type Interface Description
    LAN-side interface FE interface A LAN-side FE interface works at the data link layer, provides a maximum transmission rate of 100 Mbit/s, processes Layer 2 protocol packets, and implements Layer 2 forwarding.
    NOTE:

    Only S2720 and S2750 support FE interfaces.

    GE interface A LAN-side GE interface works at the data link layer, provides a maximum transmission rate of 1000 Mbit/s, processes Layer 2 protocol packets, and implements Layer 2 forwarding.
    10GE interface A LAN-side 10GE interface works at the data link layer, provides a maximum transmission rate of 10 Gbit/s, processes Layer 2 protocol packets, and implements Layer 2 forwarding.
    MultiGE interface

    A LAN-side MultiGE interface works at the data link layer, provides a maximum transmission rate of 2500 Mbit/s, processes Layer 2 protocol packets, and implements Layer 2 forwarding.

    NOTE:
    • A MultiGE interface is an Ethernet electrical interface that can work at the rate of 100 Mbit/s, 1000 Mbit/s, or 2500 Mbit/s. For information about devices that can connect to switches providing MultiGE interfaces, see Licensing Requirements and Limitations for Ethernet Interfaces.
    • Only the S5720-14X-PWH-SI-AC provides MultiGE interfaces with fixed numbers MultiGE0/0/1, MultiGE0/0/2, MultiGE0/0/3, and MultiGE0/0/4. For details, see S5720-14X-PWH-SI-AC in the S1720, S2700, S5700, and S6720 Series Ethernet Switches Hardware Description.
    40GE interface

    A LAN-side 40GE interface works at the data link layer, provides a maximum transmission rate of 40 Gbit/s, processes Layer 2 protocol packets, and implements Layer 2 forwarding. A 40GE optical interface can work as an independent interface or be split into four 10GE optical interfaces.

    NOTE:
    Only S6720EI and S6720S-EI support 40GE interfaces.
  • Logical interfaces

    Logical interfaces do not physically exist. They are manually configured and can be used to exchange data and transmit service data.

    Table 2-3 describes the logical interfaces that the switch supports.
    Table 2-3  Description of logical interfaces
    Interface Description
    Eth-Trunk An Eth-Trunk has Layer 2 and Layer 3 features and is formed by binding multiple Ethernet interfaces to provide more bandwidth and higher transmission reliability.
    Tunnel interface A tunnel interface has Layer 3 features, transmits packets, and identifies and processes packets transmitted over a tunnel.
    VLANIF interface A VLANIF interface has Layer 3 features and enables VLANs to communicate after being assigned an IP address.
    Sub-interface

    A sub-interface is configured on a main interface to allow the local device to communicate with multiple remote devices.

    NOTE:

    Only the S6720EI, S6720S-EI, S5720HI and S5720EI support sub-interfaces.

    Loopback interface

    A loopback interface is always Up and can be configured with a 32-bit subnet mask.

    NULL interface A null interface is used to filter routes because any data packets received by the null interface are discarded.
NOTE:

Physical interfaces are sometimes called ports. This document uses the term interface.

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Updated: 2019-12-28

Document ID: EDOC1000141936

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