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hold-down

Syntax

Hierarchy Level

Description

If the connection to a BMP station flaps and the hold-down statement is configured, the station is prevented from reconnecting to the device for the specified period of time. A flap is when the TCP session unexpectedly switches from established to non-established. If you alter the configuration of the hold-down statement, the hold down timer and flap counter are reset.

You can effectively disable the hold-down statement by setting the flaps option to 10 and the period option to 30 seconds.

Options

seconds

Specify the time in seconds to wait before allowing the BMP station to reconnect to the device.

  • Default: 600 seconds

  • Range: 30 through 65,535 seconds
flaps number

Specify the number of BMP station flaps allowed before terminating the connection to the BMP station and triggering the hold down timer.

  • Default: 3 flaps

  • Range: 2 to 10 flaps
period seconds

Specify the time in seconds for the BGP station flaps (specified using the flaps option) to occur before triggering the hold down timer. Every time a flap occurs, the number of flaps in the last time period is checked to see if the criteria is met.

For example, if you defined the period as 60 seconds and the flaps as 4 and the BGP station flaps just 2 times in a 60 second period, the hold down timer would not be triggered. However, if the BGP station flaps 4 times in a 60 second period, the hold down timer would be triggered.

  • Default: 300 seconds

  • Range: 30 through 65,535 seconds

Required Privilege Level

routing—To view this statement in the configuration.

routing-control—To add this statement to the configuration.

Release Information

Statement introduced in Junos OS Release 13.2X51-D15.

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