2 Virtual-IO Manager - Introduction
Dedicated service networks
Figure 8: Dedicated service networks
The dedicated service network is designed to separate LAN traffic of an iRMC from the operating system LAN traffic if the iRMC is not using a sep- arate management LAN but is configured to share its LAN traffic with an onboard LAN port of the server blade. In order to separate the LAN traffic of iRMC and operating system in this case, the iRMC must also be configured to use a VLAN tag for its LAN packets. A dedicated service network defined with the same VLAN ID as used by the iRMC allows the tagged iRMC LAN packets to be routed to specific uplink port(s) (external port(s)), whereas the other LAN packets from the operating system are routed to a separate uplink port.
In addition, the dedicated service network can also be used to route the LAN packages of a virtual NIC defined in the operating system running on the server blade to specific uplink ports. In order to do this, the virtual NIC in the operating system must be configured to send all packets with a VLAN tag.
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