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Configuration Guide - Interface Management

S7700 and S9700 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 1-1 describes the management interfaces that the switch supports.
    Table 1-1  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.

    ETH interface

    Complies with the 10/100BASE-TX standard.

    The ETH 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 1-2 describes the physical interfaces that the switch supports.
    Table 1-2  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.
    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.
    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.
    100GE interface A LAN-side 100GE interface works at the data link layer, provides a maximum transmission rate of 100 Gbit/s, processes Layer 2 protocol packets, and implements Layer 2 forwarding. A 100GE optical interface can work as an independent interface or be split into ten 10GE optical interfaces, four 10GE optical interfaces or two 40GE optical 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 1-3 describes the logical interfaces that the switch supports.
    Table 1-3  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.

    MTunnel interface

    An MTunnel interface (MTI) is the ingress or egress of a multicast tunnel (MT). The local provider edge (PE) sends data of the private network through the MTI, and the remote PE receives data of the private network through the MTI.

    VLANIF interface

    A VLANIF interface has Layer 3 features and enables VLANs to communicate after being assigned an IP address.

    Logical CSS interface

    A Logical CSS interface is a logical interface used to implement the CSS function. The CSS function virtualizes multiple switches into a logical switch to provide massive data forwarding and improve network reliability in data centers.

    Sub-interface

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

    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.

    Virtual-Template (VT) interface

    A virtual template contains the negotiation parameters required for PPPoE authentication, including authentication methods, negotiation timeout interval, and maximum receive unit (MRU).

NOTE:

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

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Updated: 2019-04-18

Document ID: EDOC1000141901

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