One Arm Topology
About
In load balancer technology, the One Arm Topology is a configuration where the TR7 receives client traffic and forwards it to the target Backend Services over the same network interface.
Example Topology
In the example One Arm Topology, the 10G network interface used by the TR7 can be seen on the VLAN 102 route table. The 172.16.102.113 IP address defined on the 10G network interface, which is the VIP address, is both the vService IP address and the IP address through which the TR7 forwards traffic to the target Backend Services. TR7 can manage both incoming and outgoing traffic over a single network interface. Depending on the need or preference, different IP addresses on the same network interface can also be selected for communication with the target Backend Services. TR7 manages both incoming and outgoing traffic over a single network interface. The vService IP address and the interface IP addresses are defined on the same network and the same interface.
Interface
Step > 1
A new route table was added by following the "Network > Route Tables" steps.
Step > 2
By following the "Network > Interfaces" steps, the 10G network interface was included in the added Route Table, and IP addresses were added. The 172.16.102.111 and 172.16.102.112 IP addresses are defined as "Interface IP," and the 172.16.102.113 IP address is defined as the "VIP" address.
Step > 3
By following the "Traffic Manager > Backend Services" steps, the corresponding server's Route Table was selected as VLAN 102. When Details are activated, the 172.16.102.113 IP address was selected via SNAT. If no selection is made, communication will be made through the first Interface IP addresses on the relevant Route Table.
Step > 4
Finally, a vService was created with the 172.16.102.113 VIP address on the vServices screen, and the relevant Backend Service was selected as the default.