C613-50066-01 REV A
Command Reference for IE200 Series Industrial Managed PoE+ Switches
543
AlliedWare Plus™ Operating System - Version 5.4.5I-0.x
IP A
DDRESSING
AND
P
ROTOCOL
C
OMMANDS
ARP
-
MAC
-
DISPARITY
arp-mac-disparity
Overview
Use this command in Interface Configuration mode for a VLAN interface to enable
the reception of ARP packets that contain a multicast MAC address in the sender
field.
By default, ARP packets that contain a multicast MAC address in the sender field are
dropped. The
no
variant of this command reverts to the default behavior.
Syntax
arp-mac-disparity
no arp-mac-disparity
Default
ARP disparity is disabled. ARP packets with a multicast MAC address in the sender
field are dropped.
Mode
Interface Configuration for a VLAN interface.
Usage
Normally, it is invalid for an ARP request to resolve a multicast MAC address. By
default, ARP replies with a multicast MAC addresses are not learned. This
command allows control over the learning of dynamic ARPs that resolve to a
multicast MAC address.
ARP-MAC disparity may need to be enabled to support multicast network load
balancing. The
arp-mac-disparity
command allows ARP replies quoting multicast
MAC addresses to be accepted and learned. No
arp-mac-disparity
command
reverts to default behavior.
If the ARP-MAC disparity feature is enabled, then the device sends traffic to a single
port as specified by the ARP entry.
Examples
To enable ARP MAC disparity on interface
vlan2
, use the following commands:
awplus#
configure terminal
awplus(config)#
interface vlan2
awplus(config-if)#
arp-mac-disparity
To disable ARP MAC disparity on interface
vlan2
, use the following commands:
awplus#
configure terminal
awplus(config)#
interface vlan2
awplus(config-if)#
no arp-mac-disparity
Related
Commands
clear arp-cache
show arp