Dell C9010 Modular Chassis Switch EMC Networking Command-Line Reference Guide - Page 713

Example Dell(conf-if-pegi-2/0/48)# combo-port-type copper Dell(conf-if-pegi-2/0/48)# combo-port-type fiber dampening Configure dampening on an interface. C9000 Series Syntax Parameters dampening [[[[half-life] [reuse-threshold]] [suppress-threshold]] [maxsuppress-time]] half-life reuse-threshold suppressthreshold max-suppresstime Enter the number of seconds after which the penalty is decreased. The penalty decreases half after the half-life period expires. The range is from 1 to 30 seconds. The default is 5 seconds. Enter a number as the reuse threshold, the penalty value below which the interface state is changed to "up". The range is from 1 to 20000. The default is 750. Enter a number as the suppress threshold, the penalty value above which the interface state is changed to "error disabled". The range is from 1 to 20000. The default is 2500. Enter the maximum number for which a route can be suppressed. The default is four times the half-life value. The range is from 1 to 86400. The default is 20 seconds. Defaults Disabled. Command Modes INTERFACE (conf-if-) Command History This guide is platform-specific. For command information about other platforms, refer to the relevant Dell Networking OS Command Line Reference Guide. The following is a list of the Dell Networking OS version history for this command. Version Description 9.9(0.0) 9.2(1.0) 8.3.19.0 8.3.12.0 8.3.11.1 8.1.1.0 7.6.1.0 7.5.1.0 7.4.1.0 Introduced on the C9010. Introduced on the Z9500. Introduced on the S4820T. Introduced on the S4810. Introduced on the Z9000. Introduced on the E-Series ExaScale. Introduced on the S-Series. Introduced on the C-Series. Introduced on the E-Series. Usage Information With each flap, the system penalizes the interface by assigning a penalty (1024) that decays exponentially depending on the configured half-life. After the accumulated penalty exceeds the suppress threshold value, the interface moves to the Error-Disabled state. This interface state is deemed as "down" by all static/dynamic Layer 2 and Layer 3 protocols. The penalty is exponentially decayed based on the half-life timer. After the penalty decays below the reuse threshold, the interface enables. The configured parameters are as follows: ● suppress-threshold should be greater than reuse-threshold ● max-suppress-time should be at least 4 times half-life Interfaces 713