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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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Configuring an Interface to Discard Incoming Tagged Packets

Configuring an Interface to Discard Incoming Tagged Packets

Context

All packets sent from user devices are untagged, so user-side interfaces on a switch does not receive tagged packets, and the interface must be configured as an access interface. If a user connects a switch to a user-side interface without permission, the user-side interface may receive tagged packets. To prevent unauthorized access, you can configure the user-side interface to discard incoming tagged packets.

Only interfaces that are connected to user devices and do not receive tagged packets can be configured to discard incoming tagged packets.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run interface interface-type interface-number

    The member interface view is displayed.

  3. Run port discard tagged-packet

    The interface is configured to discard incoming tagged packets.

    By default, an interface does not discard incoming tagged packets.

  4. Run commit

    The configuration is committed.

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Updated: 2019-05-08

Document ID: EDOC1100004351

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