In the following topology, we build a server network in a datacenter. The following requirements should be met:
● Servers should not be able to communicate with each other, which means traffic from a server can only be forwarded in the upstream direction.
●The network should be scalable, and the configuration of the switch should be simple (e.g., isolating the traffic between servers by ACLs or VLANs is too complex of a configuration).
You can configure a ToR switch manually or by a controller—it's up to you.
Figure 8-5. Crossflow network.
Configuring theP3295-1 switch
For P3295-1, configure ports ge-1/1/1~ge-1/1/48 in crossflow mode. Create 48 flows that will make traffic from the servers be forwarded only upstream, and be sure to configure flows that will forward the downstream traffic to the corresponding server.
Create br0 and add ports to bridge.
Configuring P3295-2 and P3295-3 switches
You can configure P3295-2 and P3295-3 using the instructions for configuring P3295-1.
Configuring the P3920 switch
For P3920, configure ports te-1/1/1~te-1/1/48 as a Layer 3 interfaces and enable the OSPF interface in qe-1/1/49. The interface qe-1/1/49 will join the OSPF network to the outside.
Be sure to configure the OSPF interface to work with the OSPF Layer 3 network.
Create br0 and add ports to br0