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Configuration Guide - Ethernet Switching

S7700 and S9700 V200R011C10

This document describes the configuration of Ethernet services, including configuring link aggregation, VLANs, Voice VLAN, VLAN mapping, QinQ, GVRP, MAC table, STP/RSTP/MSTP, SEP, and so on.
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A VLANIF Interface Fails to Be Created

A VLANIF Interface Fails to Be Created

Fault Symptom

When a user attempts to create a VLANIF interface, the system displays an error message. As a result, the VLANIF interface fails to be created.


  1. Check the error message during VLANIF interface creation.

    Rectify the fault according to the error message. See Table 4-9.

    Table 4-9  Fault rectification according to the error message


    Cause Analysis and Check Method


    Error: Can not create this interface because the interface number of this type has reached its maximum.

    The number of created VLANIF interfaces on the device has reached the limit.

    Run the display interface brief command to check the number of VLANIF interfaces, and check whether the number of VLANIF interfaces has reached the limit in Table 4-7.

    Run the undo interface vlanif vlan-id command to delete unnecessary VLANIF interfaces, and then create a specified VLANIF interface.

    Error: The VLAN is used by XXX.


    XXX indicates a feature, such as CSS, ERPS, RRPP, SEP, Smart Link, GVRP, or VBST.

    The VLAN corresponding to the VLANIF interfaces is a dynamic, control, or reserved VLAN.

    Run the display vlan summary command to check whether the value of the Dynamic vlan or Reserved vlan field is the VLAN corresponding to the VLANIF interface.

    Create a VLANIF interface corresponding to another VLAN.

  2. If the fault persists, collect alarms and logs and contact technical support personnel.
Updated: 2019-10-18

Document ID: EDOC1000178310

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