Cisco Nexus 3548 User Manual

216
Cisco Nexus 3548 Switch NX-OS Unicast Routing Command Reference
OL-27852-01
Chapter Unicast Routing Commands
ip unreachables
ip unreachables
To enable the generation of Internet Control Message Protocol (ICMP) unreachable messages, use the
ip unreachables command. To disable this function, use the no form of this command.
ip unreachables
no ip unreachables
Syntax Description This command has no arguments or keywords.
Command Default Enabled
Command Modes Interface configuration mode
Subinterface configuration mode
Command History
Usage Guidelines The ip unreachables command is not supported in Warp mode.
ICMP unreachables are not generated in Warp mode
This command requires the LAN Base Services license.
Examples This example shows how to enable the generation of ICMP unreachable messages on an interface:
switch# configure terminal
switch(config)# interface ethernet 2/1
switch(config-if)# no switchport
switch(config-if)# ip unreachables
switch(config-if)#
Related Commands
Release Modification
5.0(3)A1(1) This command was introduced.
Command Description
ip port-unreachable Sends ICMP port unreachable messages.

Cisco Nexus 3548 Specifications

General

Rack Units	1RU
Product Type	Switch
Form Factor	Rack-mountable
Jumbo Frame Support	9216 bytes
Input Voltage	100-240 VAC
Product Series	Nexus 3000
Model	Nexus 3548
Operating System	Cisco NX-OS
Ports	48 x 10GE SFP+
Latency	190 ns
Airflow	Front-to-back