Use the link detection allowArpBroadcastProbeReply parameter to control at the system-level whether the SBC allows or drops broadcast ARP replies.

Note

For SBC 7000 series systems, enabling this parameter results in the SBC allowing through opCode Reply packets and dropping opCode Request packets.

Caution

For SBC SWe deployments, enabling this parameter results in the SBC allowing through both ARP Broadcast opCode Reply and opCode Request packets. This can make the SBC susceptible to a false indication of link failure if the network carries a high volume of opCode Request packets. This type of packet is typically sent during broadcast ARP storms.

Command Syntax

% set system admin <systemName> linkDetection allowArpBroadcastProbeReply <disabled | enabled>

Command Parameters

ParameterDescription

allowArpBroadcastProbeReply

Enable this flag to have the SBC allow broadcast replies to ARP probe requests on standby ports.

  • disabled (default)
  • enabled

Configuration Example

Issue the following commands to enable accepting broadcast replies to ARP probe requests on standby ports on a system named "SBC-1."

% set system admin SBC-1 linkDetection allowArpBroadcastProbeReply enabled
% commit