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S12700 V200R010C00 Configuration Guide - Ethernet Switching

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 promptly detect whether the remote device is faulty by sending E-Trunk packets, it can instead use the Bidirectional Fast Detection (BFD) protocol. 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:


    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 quickly detect faults of links between the two E-Trunk member devices.

    When a BFD session is bound to an 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: 2019-08-21

Document ID: EDOC1000142081

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