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Configuration Guide - Ethernet Switching

CloudEngine 8800, 7800, 6800, and 5800 V200R003C00

This document describes the configuration of Ethernet services, including configuring MAC address table, link aggregation, VLANs, MUX VLAN, Voice VLAN, VLAN mapping, QinQ, GVRP, VCMP, STP/RSTP/MSTP, VBST, SEP, RRPP, ERPS, LBDT, and Layer 2 protocol transparent transmission.
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A VLANIF Interface Goes Down

A VLANIF Interface Goes Down

Fault Description

A VLANIF interface is in Down state.

Common Causes and Solutions

Table 5-11 lists the common causes and solutions.

Table 5-11 Common causes and solutions for the VLANIF interface going down

Common Cause


No interface is added to the corresponding VLAN.

Add interfaces to the corresponding VLAN.

All interfaces added to the VLAN are physically Down.

Rectify the fault. A VLANIF interface is Up as long as an interface in the corresponding VLAN is Up.

No IP address is assigned to the VLANIF interface.

Run the ip address command in the view of the VLANIF interface to assign an IP address to the VLANIF interface.

The VLANIF interface is shut down.

Run the undo shutdown (interface view) command in the view of the VLANIF interface to enable the VLANIF interface.

Updated: 2019-05-08

Document ID: EDOC1100004351

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