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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) Setting the Interval for Sending LBDT Packets

(Optional) Setting the Interval for Sending LBDT Packets


An LBDT-enabled interface sends LBDT packets at intervals. A shorter interval indicates that the system sends more LBDT packets in a given period and detects loops more accurately. However, more system resources are consumed and system performance is affected. You can adjust the interval for sending LBDT packets according to actual networking to balance system performance and LBDT accuracy.


  1. Run system-view

    The system view is displayed.

  2. Run loopback-detect packet-interval packet-interval-time

    The interval for sending LBDT packets is set.

    By default, the interval for sending LBDT packets is 5s.

Updated: 2019-01-18

Document ID: EDOC1100038843

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