Users Guide
Command History
This guide is platform-specific. For command information about other platforms, see the relevant Dell Networking 
OS Command Line Reference Guide.
Version Description
9.11(0.0) Introduced on the C9010.
9.9(0.0) Introduced on the Z9500.
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.
9.7(0.0) Introduced on the S4810, S4820T, S5000, S6000, and Z9000 switches.
Related Commands
• ipv6 nd ra-guard enable — configure the RA guard related commands.
• ipv6 nd raguard policy policy-name — define the RA guard policy name and enter the RA guard policy 
configuration mode.
mtu
Enable the verification of the configured maximum transmission unit (MTU) value in the received RA packets.
Syntax
mtu value
To reset the MTU value, use the no mtu value command.
Parameters
value Enter the maximum transmission unit value in bytes. The range is from 1,280 to 11,982 
bytes.
Defaults 0
Command Modes POLICY LIST CONFIGURATION
Command History
This guide is platform-specific. For command information about other platforms, see the relevant Dell Networking 
OS Command Line Reference Guide.
Version Description
9.11(0.0) Introduced on the C9010.
9.9(0.0) Introduced on the Z9500.
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.
9.7(0.0) Introduced on the S4810, S4820T, S5000, S6000, and Z9000 switches.
Related Commands
• ipv6 nd ra-guard enable — configure the RA guard related commands.
Neighbor Discovery Protocol (NDP) 999










