Administrator Guide

IS-IS: Level-2 DR Elections : 4
IS-IS: Level-1 SPF Calculations : 0
IS-IS: Level-2 SPF Calculations : 389
IS-IS: LSP checksum errors received : 0
IS-IS: LSP authentication failures : 0
DellEMC#
spf-interval
Specify the minimum interval between shortest path first (SPF) calculations.
Syntax
spf-interval [level-l | level-2] interval seconds [initial_wait_interval
seconds [second_wait_interval seconds]]
To restore default values, use the no spf-interval [level-l | level-2] interval seconds
[initial_wait_interval seconds [second_wait_interval seconds]] command.
Parameters
level-l (OPTIONAL) Enter the keyword level-1 to apply the configuration to Level-1 SPF
calculations.
level-2 (OPTIONAL) Enter the keyword level-2 to apply the configuration to Level-2 SPF
calculations.
interval seconds Enter the maximum number of seconds between SPF calculations. The range is from 0 to
120 seconds. The default is 10 seconds.
initial_wait_interv
al seconds
(OPTIONAL) Enter the initial wait time, in seconds, before running the first SPF
calculations. The range is from 0 to 120 seconds. The default is 5 seconds.
second_wait_inter
val seconds
(OPTIONAL) Enter the wait interval, in seconds, between the first and second SPF
calculations. The range is from 0 to 120 seconds. The default is 5 seconds.
Defaults See Parameters.
Command Modes
• ROUTER ISIS (for IPv4)
• CONFIGURATION-ROUTER-ISIS-ADDRESS-FAMILY-IPV6 (for IPv6)
Command History
This guide is platform-specific. For command information about other platforms, see the relevant Dell EMC
Networking OS Command Line Reference Guide.
Version Description
9.10(0.1) Introduced on the S6010-ON and S4048T-ON.
9.10(0.0) Introduced on the S3148.
9.10(0.0) Introduced on the S6100–ON.
9.8(2.0) Introduced on the S3100 series.
9.8(1.0) Introduced on the Z9100–ON.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S6000-ON.
9.5(0.1) Introduced on the Z9500.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.12.0 Introduced on the S4810.
7.8.1.0 Added support for multi-topology ISIS.
7.5.1.0 Added support for SPF Throttling Enhancement.
914 Intermediate System to Intermediate System (IS-IS)