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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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Default Settings for LDT and LBDT

Default Settings for LDT and LBDT

Table 20-5  Default setting for LDT


Default Setting


Disabled globally and in a VLAN, and enabled on an interface

Action taken after a loop is detected


Interval for sending LDT packets


Interface recovery time


Table 20-6  Default setting for LBDT
Parameter Default Setting

Automatic LBDT


Manual LBDT

Disabled on an interface and in a VLAN

Action after a loop is detected


Interval for sending LBDT packets


Interface recovery time

3 times the interval for sending detection packets
Updated: 2019-10-18

Document ID: EDOC1000178310

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