LTM One-Arm - inline - 2 Arm

so let me ask this question to make sure I interpret something correct. I have a design where the LTM has private backend vlans (self-ips) that the different pool members belong to. There is also a public vlan(self_ip) which the Virtual server ips are placed in. I am using SNAT to allow self originating requests back to the internet from a given pool member.

 

 

Each node used the F5 self ip as a default gateway. What would you refer to this type of design as?

 

 

thanks