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Configuration Guide - Ethernet Switching

S7700 and S9700 V200R012C00

This document describes the configuration of Ethernet services, including configuring MAC address table, link aggregation, VLANs, VLAN aggregation, MUX VLAN, VLAN termination, Voice VLAN, VLAN mapping, QinQ, GVRP, VCMP, STP/RSTP/MSTP, VBST, SEP, RRPP, ERPS, LBDT, HVRP, and Layer 2 protocol transparent transmission.
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(Optional) Configuring the E-Trunk Sequence Number Check Function

(Optional) Configuring the E-Trunk Sequence Number Check Function

Context

If the master device in an E-Trunk fails, enabling the E-Trunk sequence number check function can prevent an attacker from attacking the backup device using E-Trunk packets obtained from the master device.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run e-trunk e-trunk-id

    The E-Trunk view is displayed.

  3. Run sequence enable

    The E-Trunk sequence number check function is enabled on the E-Trunk.

    By default, the E-Trunk sequence number check function is disabled.

    The sequence enable command must be run on both the master and backup devices in an E-Trunk. Otherwise, packets are dropped due to failure of the E-Trunk sequence number check, causing dual master devices in the E-Trunk.

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Updated: 2019-01-18

Document ID: EDOC1100038843

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