Administrator Guide

Version Description
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 S4810, S4820T, S5000, S6000, S6000–ON, and Z9000 switches.
Related
Commands
ipv6 nd raguard policy policy-name — define the router advertisement (RA) guard policy name and enter the RA
guard policy configuration mode.
ipv6 nd ra-guard enable — configure the RA guard related commands.
router–lifetime
Set the router lifetime.
Syntax
router—lifetime value
Parameters
value Enter the router lifetime in seconds. The range is from 0 to 9,000 seconds.
Defaults None
Command Modes POLICY LIST CONFIGURATION
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
9.11(0.0) Introduced on the C9010.
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.
9.9(0.0) Introduced on the Z9500.
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 S4810, S4820T, S5000, S6000, S6000–ON, and Z9000 switches.
Related
Commands
• ipv6 nd ra-guard enable — configure the RA guard related commands.
• ipv6 nd raguard policy policy-name — define the router advertisement (RA) guard policy name and enter the
RA guard policy configuration mode.
router–preference maximum
Enable the verification of the advertised default router preference (DRP) value. The preference value is lower than or equal to the
specified limit. If this command is not configured, the verification process is bypassed.
Syntax
router-preference maximum {high | low | medium}
To reset the default router preference value, use the no router-preference maximum {high | low |
medium} command.
Parameters
high Enter the keyword high to set the DRP value as high.
low Enter the keyword low to set the DRP value as low.
Neighbor Discovery Protocol (NDP) 1055