Dell S6000 FTOS 9.0(2.0) Command Line Reference Guide for the System - Page 535

Command Modes INTERFACE Command History Version 9.0.2.0 Version 8.3.7.0 Introduced on the S6000. Introduced on the S4810. 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 S6000 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 9.0.2.0 Version 8.3.7.0 Introduced on the S6000. Introduced on the S4810. Usage Information The holdtime (the product of the hello-multiplier multiplied by the hello-interval) determines how long a neighbor waits for a hello packet before declaring the neighbor is down so routes can be recalculated.I Related Commands isis hello-interval Specify the length of time between hello packets. isis hello padding S6000 Turn ON or OFF padding of hello PDUs from the interface mode. | 535