Dell Force10 S4820T FTOS Command Reference Guide - Page 923

Usage Information Hello packets are held for a length of three times the value of the hello interval. Use a high hello interval seconds to conserve bandwidth and CPU usage. Use a low hello interval seconds for faster convergence (but uses more bandwidth and CPU resources). Related Commands isis hello-multiplier Specifies the number of IS-IS hello packets a neighbor must miss before the router should declare the adjacency as down. isis hello-multiplier e Specify the number of IS-IS hello packets a neighbor must miss before the router declares the adjacency down. Syntax isis hello-multiplier multiplier [level-1 | level-2] To return to the default values, enter no isis hello-multiplier [multiplier] [level-1 | level-2]. Parameters multiplier level-1 level-2 Specifies an integer that sets the multiplier for hello holding time. Never configure a hello-multiplier lower then the default (3). Range: 3 to 1000 Default: 3 (OPTIONAL) Select this value to configure the hello multiplier independently for Level 1 adjacencies. This is the default. (OPTONAL) Select this value to configure the hello multiplier independently for Level 2 adjacencies. Defaults multiplier =3; level-1 (if not otherwise specified) Command Modes INTERFACE Command History Version 8.3.19.0 Version 8.3.12.0 Introduced on S4820T Introduced on S4810 Usage The holdtime (the product of the hello-multiplier multiplied by the hello-interval) determines how long Information a neighbor waits for a hello packet before declaring the neighbor is down so routes can be recalculated. Related Commands isis hello-interval Specify the length of time between hello packets. isis hello padding e Turn ON or OFF padding of hello PDUs from the interface mode. Syntax isis hello padding To return to the default, use the no isis hello padding. Intermediate System to Intermediate System (IS-IS) | 923