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Configuration Guide - Interface Management

CloudEngine 12800 and 12800E V200R003C00

This document describes the interface management configuration, including basic interface configuration, Ethernet interface configuration, and logical interface configuration.

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Configuring an Eth-Trunk Layer 3 Sub-interface

Configuring an Eth-Trunk Layer 3 Sub-interface

Context

Layer 3 Sub-interfaces can be configured on a Layer 3 Eth-Trunk. When Layer 3 devices connect to Layer 2 devices in different VLANs through the Layer 3 Eth-Trunk, Layer 3 sub-interfaces must be configured on the Eth-Trunk to identify packets from different VLANs and to enable users in these VLANs to communicate with each other.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run interface eth-trunk trunk-id

    An Eth-Trunk is created and the Eth-Trunk interface view is displayed.

  3. Run undo portswitch

    A Layer 3 Eth-Trunk is configured.

  4. Run quit

    Exit the Eth-Trunk interface view.

  5. Run interface eth-trunk trunk-id.subnumber

    An Eth-Trunk Layer 3 sub-interface is created, and the Layer 3 sub-interface view is displayed.

    subnumber specifies the number of the Layer 3 sub-interface. The value is in the range 1 to 4094.

  6. Run ip address ip-address { mask | mask-length } [ sub ]

    An IP address is configured for the Layer 3 sub-interface.

    When configuring multiple IP addresses for an Eth-Trunk Layer 3 sub-interface, use the sub keyword to indicate the second and subsequent IP addresses.

  7. Run dot1q termination vid vid

    The Eth-trunk Layer 3 sub-interface is configured to terminate single-tagged packets.

  8. Run commit

    The configuration is committed.

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Updated: 2019-05-05

Document ID: EDOC1100004195

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