Administrator Guide

To remove the IPv4 catch-all route (0.0.0.0/0) from the LPM route forwarding table in hardware which
gets added as a default configuration after the initialization of FIB Agent module, use the no ip
unknown-unicast command.
Defaults None
Command Modes CONFIGURATION
Command
History
Version Description
9.7(0.0) Introduced on the S6000-ON.
9.4(0.0) Introduced on the S–Series and Z9000.
Usage
Information
Use this command to add the IPv4 catch-all route (0.0.0.0/0) in the LPM route forwarding table if it was
deleted using the no ip unknown-unicast command previously. This will be the default configuration
after reload.
ipv6 unknown-unicast
Disable soft forwarding of unknown IPv6 destination packets.
Z9000
Syntax
[no] ipv6 unknown-unicast
Defaults Soft forwarding is enabled.
Command Modes CONFIGURATION
Command
History
Version Description
9.7(0.0) Introduced on the S6000-ON.
9.4(0.0) Introduced on the S4810, S4820T, S6000, and Z9000.
Usage
Information
All the default catch-all entries in the longest prefix match (LPM) table collect and transmit all unresolved
IPv6 packets to the CPU, even if they are destined for unknown destinations.
service-policy rate-limit-cpu-queues
Apply a policy map for the system to rate limit control traffic on a per-queue basis.
Z9000
Syntax
service-policy rate-limit-cpu-queues policy-name
Parameters
policy-name Enter the service-policy name, using a string up to 32 characters.
Defaults Not configured.
Command Modes CONTROL-PLANE-CPUQOS
Command
History
This guide is platform-specific. 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.
384 Control Plane Policing (CoPP)