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Use the Link Detection window to control at the system-level whether the SBC allows or drops broadcast ARP replies.

Info
titleNote

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

Note
titleCaution

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.

From the SBC main window, go to All > System > Admin > Link Detection

The Link Detection window opens.

Caption
0Figure
1Link Detection Window

 

Use the following table to set the link detection option and then click Save.

Caption
0Table
1Link Detection Parameter
Parameter

Description

Allow ARP Broadcast Probe Reply

Specifies whether the SBC allows or drops broadcast replies to ARP probe requests on standby ports. The options are:

  • Disabled (default)
  • Enabled
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