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Forum Discussion

johnbernardcheu's avatar
johnbernardcheu
Icon for Cirrus rankCirrus
May 08, 2017

How does Virtual Location monitor determine if pool member is local?

Hi there, doc says that the virtual location monitor determines whether a pool member is local (residing in the same data center as the BIG-IP system) or remote (residing in a different data center)....
application delivery
LTM
Pedro_Haoa's avatar
Pedro_Haoa
Ret. Employee
Feb 24, 2020

Hi,

 

The Virtual Location monitor will determine if a pool member which has a virtual IP is currently a local pool member with its arp entry existing on a local VLAN, or, a remote pool member with its ARP entry existing on a tunnel VLAN.

 

If the pool member is local it will set the pool member's priority to 2. If the pool member is remote it will set the priority to 1 (a lower priority).

 

The Virtual Location will always return up as the availability for the pool member. It is necessary to use an additional monitor to check the availability status of the pool member.

 

https://clouddocs.f5.com/cli/tmsh-reference/latest/modules/ltm/ltm-monitor-virtual-location.html