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Thiyagu_343098's avatar
Thiyagu_343098
Icon for Nimbostratus rankNimbostratus
May 02, 2018

VLAN failsafe

Hello All, I want to know more about the VLAN failsafe option. Could you please help me to know   1- in which scenario we have to use the option? 2- What are the drawback of this option? 3- what ...
application delivery
BIG-IP
LTM
youssef1's avatar
youssef1
Icon for Cumulonimbus rankCumulonimbus
May 02, 2018

Hello,

 

VLAN failsafe allow to monitor certain aspects of the system or network. This functionnality can detect a problem with a VLAN (Monitors traffic on a VLAN), and take some action, such as restarting the service or failover. The default action is Reboot.

 

What I now, when a device encounter a Networ problem (On a monitoring VLAN), the system initiate failover and switch control to the standby device regardless of the other equipment.

 

that means that we can potially have the 2 standby equipment (I already had this problem).

 

To solve this problem, I gave up vlan failsafe an I used HA group (that are more flexible and smart). You can create a pool with your GW and create a transparent monitor. then Put a different Weight on both device... That allow you to failover when a vlan fail but always have an active memenber.

 

Hope that it's clear for your.

 

Regards,