Service Manual
Related Commands ipv6 nd raguard policy policy-name — Denes the router advertisement (RA) guard policy name and enter
the RA guard policy conguration mode.
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-specic. For command information about other platforms, refer to the relevant Dell
Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version Description
9.7(0.0) Introduced on the S6000-ON.
9.7(0.0) Introduced on the S4810, S4820T, S5000, S6000, and Z9000 switches.
Related Commands
• ipv6 nd ra-guard enable — Allows you to congure the RA guard related commands.
• ipv6 nd raguard policy policy-name — Denes the router advertisement (RA) guard policy name and
enter the RA guard policy conguration mode.
router-preference maximum
Enable the verication of the advertised default router preference (DRP) value. The preference value is lower than or equal to the
specied limit. If this command is not congured, the verication 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.
medium Enter the keyword medium to set the DRP value as medium.
Defaults none
Command Modes POLICY LIST CONFIGURATION
Command History
This guide is platform-specic. For command information about other platforms, refer to the relevant Dell
Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version Description
9.7(0.0) Introduced on the S6000-ON.
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Neighbor Discovery Protocol (NDP)










