Command list, Arp-mac-disparity, Command list arp-mac-disparity – Allied Telesis AlliedWare Plus Operating System Version 5.4.4C (x310-26FT,x310-26FP,x310-50FT,x310-50FP) User Manual

Page 637

IP Addressing and Protocol Commands

Software Reference for x310 Series Switches

C613-50046-01 REV A

AlliedWare Plus

Operating System - Version 5.4.4C

25.3

Command List

arp-mac-disparity

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

no arp-mac-disparity

command reverts to default behavior.

If the ARP-MAC disparity feature is enabled, then the switch 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:

To disable ARP MAC disparity on interface vlan2, use the following commands:

Related Commands

clear arp-cache
show arp

awplus#

configure terminal

awplus(config)#

interface vlan2

awplus(config-if)#