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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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Binding an E-Trunk to a BFD Session

Binding an E-Trunk to a BFD Session


When the local device of an E-Trunk cannot rapidly detect whether the remote device is faulty by sending E-Trunk packets, it can use the Bidirectional Fast Detection (BFD) protocol to quickly detect faults on the remote device. You need to specify the remote IP address on the local device and create a BFD session to check the reachability of the route to the remote device. The E-Trunk then can detect faults reported by the BFD session and the device can handle the faults quickly.


  1. Run system-view

    The system view is displayed.

  2. Run e-trunk e-trunk-id

    The E-Trunk view is displayed.

  3. Run e-trunk track bfd-session session-name bfd-session-name

    The E-Trunk is bound to a BFD session.

    BFD sessions are used to fast detect faults of link between the two E-Trunk member devices.

    When a BFD session is bound with E-Trunk, the system does not allow the bound BFD session to be deleted by default. To delete the bound BFD session, run the bfd session nonexistent-config-check disable command to disable the device from checking whether the bound BFD session is deleted.

Updated: 2019-10-18

Document ID: EDOC1000178310

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