This diagram of the Auto Service Request network shows the following:

The administrative network has links to the Ethernet switch, and to ASR Manager using port 162.

The client access network has a link to ASR Manager. It also connects to the Internet at the firewall.

The Internet connects to the Oracle ASR infrastructure https://transport.oracle.com using port 443.

The Ethernet switch has two connections, one for eth0 and the other for ILOM, over the administrative network to each Oracle Big Data Appliance server, using port 6481.

The Ethernet switch also has a connection to each InfiniBand Gateway Switch for ILOM.