System information

26 Software Release Note AlliedWare Plus Version 5.3.4-0.1 C613-10501-01-REV B
Errata to the Software Reference
The following update is a correction to the Software Reference for AlliedWare Plus 5.3.4-0.1
Note that the show cli and show list commands shown in the Software Reference for AlliedWare
Plus 5.3.4-0.1 are not supported in this release.
Note that the icmp-redirect command will operate on the x600 series only. The ip redirects
command in the Software Reference for AlliedWare Plus 5.3.4-0.1 is not supported in this release.
icmp-redirect (x600)
This command re-enables ICMP redirects globally. Note that ICMP redirects are enabled by
default. Use this command to allow the sending of ICMP redirects whenever the switch
receives a packet that is routed on the same interface that the packet was sent on.
Use the no variant of this command to disallow the sending of ICMP redirects whenever the
switch receives a packet that is routed on the same interface that the packet was sent on.
Use the no variant of this command to disable the sending of ICMP redirects globally.
Syntax icmp-redirect
no icmp-redirect
Mode
Global Configuration
Default ICMP redirects are enabled by default.
Usage ICMP redirect messages are used to notify hosts that a better route is available to a destination.
ICMP redirects are used when a packet is routed into the switch on the same interface that the
packet is routed out of the switch. ICMP redirects are also used when the subnet or network of
the source address is on the same subnet or network as the next-hop address for a packet.
This command enables and disables the copying, and therefore CPU processing, of IPv4 and
IPv6 packets being L3 switched coming in and going out the same interface. So when the switch
receives IP packets to forward on the same interface that the packets came from, such as when
traffic goes in and out of a multihomed interface, then the packets will cause the CPU utilization
to be higher than normal. The CPU utilization is increased by the CPU inspecting packets for
ICMP redirection. Turn off the ICMP redirection feature to avoid an increase in CPU utilization.
Examples To re-enable ICMP redirects on the switch, which will enable the CPU inspection of packets
coming in and going out of the same interface, use the following commands:
To disable ICMP redirects on the switch, which will disable the CPU inspection of packets
coming in and going out of the same interface, use the following commands:
Related Commands show running-config
awplus#
configure terminal
awplus(config)#
icmp-redirect
awplus#
configure terminal
awplus(config)#
no icmp-redirect