Dell S3100 Command Line Reference Guide for the Series 9.100.1 - Page 878

Usage Information Hello packets are held for a length of three times the value of the hello interval. To conserve bandwidth and CPU usage, use a high hello interval seconds. Use a low hello interval seconds for faster convergence (but uses more bandwidth and CPU resources). Related Commands • isis hello-multiplier - specify the number of IS-IS hello packets a neighbor must miss before the router declares the adjacency as down. isis hello-multiplier 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, use the no isis hello-multiplier [multiplier] [level-1 | level-2] command. Parameters multiplier level-1 level-2 Specifies an integer that sets the multiplier for the hello holding time. Never configure a hello-multiplier lower than the default (3). The range is from 3 to 1000. The default is 3. (OPTIONAL) Select this value to configure the hello multiplier independently for Level 1 adjacencies. This value 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 This guide is platform-specific. For command information about other platforms, see the relevant Dell Networking OS Command Line Reference Guide. Version 9.10(0.0) 9.8(2.0) 9.8(1.0) 9.8(0.0P5) 9.8(0.0P2) 9.7(0.0) 9.5(0.1) 9.0.2.0 8.3.19.0 8.3.12.0 8.3.11.1 Description Introduced on the S3148. Introduced on the S3100 series. Introduced on the Z9100-ON. Introduced on the S4048-ON. Introduced on the S3048-ON. Introduced on the S6000-ON. Introduced on the Z9500. Introduced on the S6000. Introduced on the S4820T. Introduced on the S4810. Introduced on the Z9000. 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. Intermediate System to Intermediate System (IS-IS) 878