Please refer to Figure-1 for the Mars 400 internal network topology and Figure-2 for the multiple Mars 400 with the high-available network.
Each microserver has two 2.5Gbps NIC. Internally, eth0 is connected to switch #1, and eth1 is connected to switch #2. eth0 and eth1 are bounded at mode 2 or mode 6 as bound0 to provide the 5Gbps redundant network. The bounded network is configured for both Cepn in-cluster and public network. This provides the redundancy of the in-chassis switch. If one of the in-chassis fails, the microserver can keep internal and external communication with 2.5Gbps bandwidth.
The uplinks from the in-chassis switch are two 10Gbps. There are a total of four 10Gbps from each Mars 400 appliance.
Figure 1.
Figure 2.