Administrator Guide

Usage Information
To prevent the link state database from receiving incorrect routing information from unauthorized routers, use the
area-password command on routers within an area.
The configured password injects into Level 1 LSPs, CSNPs, and PSNPs.
Related
Commands
• domain-password — set the authentication password for a routing domain.
• isis password — configure an authentication password for an interface.
clear config
Clear IS-IS configurations that display under the router isis heading of the show running-config command output.
Syntax
clear config
Command Modes ROUTER ISIS
Command History
This guide is platform-specific. For command information about other platforms, refer to the relevant Dell EMC
Networking OS Command Line Reference Guide.
The following is a list of the Dell EMC Networking OS version history for this command.
Version Description
9.10(0.0) Introduced on the S3148.
9.10(0.1) Introduced on the S6010-ON and S4048T-ON.
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.
8.3.7.1 Introduced on the S4810.
Usage Information
CAUTION: Use caution when you enter this command. Back up your configuration prior to using
this command or your IS-IS configuration will be erased.
clear isis
Restart the IS-IS process. All IS-IS data is cleared.
Syntax
clear isis [vrf vrf-name] [tag] {* | database | traffic}
Parameters
vrf vrf-name (Optional) Enter the keyword vrf followed by the name of the VRF to restart the IS-IS
process corresponding to that VRF.
tag (Optional) Enter an alphanumeric string to specify the IS-IS routing tag area.
* Enter the keyword * to clear all IS-IS information and restart the IS-IS process. This
command removes IS-IS neighbor information and IS-IS LSP database information and
the full SPF calculation is done.
Intermediate System to Intermediate System (IS-IS) 791