How to configure the BFD echo function for S series switches

You can configure BFD echo on S series switches (except S1700 switches) to achieve rapid detection of link failures. The networking is shown as follows:
Switch A and Switch B are directly connected through a link. SwitchA supports BFD, while SwitchB does not. Perform the following configuration:
[SwitchA] bfd //Enable BFD.
[SwitchA-bfd] quit
[SwitchA] bfd atob bind peer-ip interface vlanif13 source-ip one-arm-echo //Create a BFD echo session.
[SwitchA-bfd-session-atob] discriminator local 1 //Configure the BFD echo session identifier.
[SwitchA-bfd-session-atob] commit

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