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Dell EMC Configuration Guide for the S4048T–ON System 9.14.2.4

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Changing IS-IS Session Parameters

BFD sessions are configured with default intervals and a default role.

The parameters that you can configure are: Desired TX Interval, Required Min RX Interval, Detection Multiplier, and system role. These parameters are configured for all IS-IS sessions or all IS-IS sessions out of an interface. If you change a parameter globally, the change affects all IS-IS neighbors sessions. If you change a parameter at the interface level, the change affects all IS-IS sessions on that interface.

To change parameters for all IS-IS sessions or for IS-IS sessions on a single interface, use the following commands.

To view session parameters, use the show bfd neighbors detail command, as shown in Verifying BFD Sessions with BGP Neighbors Using the show bfd neighbors Command.

  • Change parameters for all IS-IS sessions.
    ROUTER-ISIS mode
    bfd all-neighbors interval milliseconds min_rx milliseconds multiplier value role [active | passive]
  • Change parameters for IS-IS sessions on a single interface.
    INTERFACE mode
    isis bfd all-neighbors interval milliseconds min_rx milliseconds multiplier value role [active | passive]

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