Enable Layer 2 Assert Mode

Steps:

1. To enable the Assert mode, click Devices → <Admin Domain Name> → Devices → <Device Name> → Troubleshooting → Layer 2 Bypass.

2. In the Layer 2 Pass-Through Monitoring section, select Assert in the drop-down list against Layer 2 Mode.

3. Check ARP Spoofing to enable it on the device.

4. Click Save.

   Once applied, you can view the number of critical faults and current mode in the Layer 2 Pass-Through Status dialog at the bottom of the screen.

   Layer 2 Settings window

   
   
   
   

   Note the following status fields:

   • Occurrences: Displays the current number of threshold-breaching events

   • Current Mode: Displays the current mode of the device. Abnormal means that Layer 2 pass-through mode is enabled in the device. L2 Pass-Through Mode means pass-through mode is enabled.

   Note

   To view the status of Assert mode for Sensors in a stack, Click Devices → <Admin Domain Name> → Devices → <Device Name> → Member Sensors → <Stackname-node id> → Troubleshooting → Layer 2 Bypass

   Note

   • The Manager interface does not allow you to move to ON/OFF mode once the layer 2 mode is set to Assert, then only Deassert is allowed.

   • If you set the mode to 'Assert', it gets applied to all the Member Sensors for a stack / HA.

   • The Layer 2 modes Assert/Dessert could only be set from Manager interface for Sensor versions 10.1.5.107 and above. For others, it is recommended to set these modes through CLI commands.