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Using Oracle® Compute Cloud Service - Dedicated Compute Capacity - SPARC Model 300

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Updated: April 2018

Learn About Network Settings

By default, all instances in Oracle SPARC Model 300 Service can communicate with each other on the subnet that was allocated during the initial registration and deployment. Any traffic on the default VLAN (VLAN 100) can be routed outside of the service and can be accessible to the data center through a VPN service. All VLAN tags are removed from traffic leaving the Oracle SPARC Model 300 network, and all traffic entering the Oracle SPARC Model 300 network are tagged with VLAN 100. It is not possible to extend your VLAN into the Oracle SPARC Model 300 network from your data center.

You can further isolate network objects within the rack by using VLANs 101 through 199, which can be configured by the instance root role.

Storage in Oracle SPARC Model 300 Service can only be accessed by instances within the service.

Each compute instance (DomU) is preconfigured with a 2x10GbE LACP port aggregate datalink (aggr1), which is created using the net0 and net2 interfaces. This aggregate provides a high-bandwidth redundant link on top of which you can configure virtual network devices (VNICS). By default, one VNIC (aggr1_vnic1) is preconfigured on the LACP aggregate aggr1 and is assigned to VLAN 100 to allow immediate connectivity to the Oracle SPARC Model 300 DomU. You can configure additional VNICs using this datalink, as needed. To create a VNIC link called aggr1_vnic2, for example, that is associated with VLAN 100 on the aggregate aggr1, run the following command as root user.

root@opc-192-168-50-6:~# dladm create-vnic -l aggr1 -v 100 aggr1_vnic2


  • -l selects the link aggregate on which the VNIC will be created.

  • -v assigns the VNIC with a tagged VLAN ID.

VLANs 101 through 199 can be used for network isolation within the Oracle SPARC Model 300 and will not propagate out of the Oracle SPARC Model 300 network. In this case, you can create a VNIC using a command similar to the one in the preceding example, but you will use a tagged VLAN ID of 101 through 199 instead of VLAN ID 100.

Two additional 10GbE ports, net1 and net3, are available for use and are connected to the Oracle SPARC Model 300 networking, but are not configured by default. To use these interfaces, you must configure the ports as an additional LACP port aggregate. To create this aggregate, run the following command as root user.

root@opc-192-168-50-6:~# dladm create-aggr -m trunk -L active -P L3,L4 -l net1 -l net3 aggr2


  • -m sets the appropriate LACP aggregate mode.

  • -L sets the LACP mode.

  • -P sets the correct trunk aggregation policy.

  • -l selects the network ports that will be added to the aggregate.

Any change to this command, other than to the name of the aggregate, is unsupported. The Oracle SPARC Model 300 network configuration expects an aggregate with specific characteristics, and changing them can produce unknown network performance or operation of the new aggregate. Do not use the net1 and net3 ports as independent ports due to existing SPARC Model 300 network requirements.