User Manual

Working With VPIRev 1.4.1-2.0.000
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4.2.2 Networking
The InfiniBand package includes a networking module called IPoIB, which causes each
InfiniBand port on the VMware ESX Server machine to be exposed as one or more physical net-
work adapters, also referred to as up
links or vmnics. To verify that all supported InfiniBand ports
on the host are recognized and up, perform the following steps:
1. Connect to the VMware ESX Server machine using the interface of VMware vSphere
Client.
2. Select the "Configuration" tab.
3. Click the "Network Adapters" entry whic
h appears in the "Hardware" list.
A "Network Adapters" list is displayed, describing per uplink the "Device" it resides on, the port
"S
peed", the port "Configured" state, and the "vSwitch" name it connects to.
To create and configure virtual network adapters connected to
InfiniBand uplinks, follow the
instructions in the ESX Server Configuration Guide document.
4.2.3 NetQueue
In VMware vSphere 4, NetQueue is enabled by default. It is also enabled by default in IPoIB
driver (and mlx4_en 10GigE driver).
There is no need to configure the driver or the ESX/
ESXi in order to take advantage of NetQueue
technology.
4.2.4 Virtual Local Area Network (VLAN) Support
To support VLAN for VMware ESX Server users, one of the elements on the virtual or physical
network must tag the Ethernet frames with an 802.1Q tag. There are three different configuration
modes to tag and untag the frames as virtual machine frames:
1. Virtual Machine Guest Tagging (VGT Mode)
2. ESX Server Virtual Switch Tagging (VST Mode)
3. External Switch Tagging (EST Mode)
To configure VLAN for InfiniBand networking, the following entities may need to be configured
according to the mode you intend to use:
y Subnet Manager Configuration
All features supported by Ethernet adapter uplinks are also supported by InfiniBand
port uplinks (e.g., VMware® VMotionTM, NIC teaming, and High Availability), and
their setting is performed transparently.
EST is supported for Ethernet switches and can be used beyond IB/Eth Gateways trans-
parently to VMware ESX Servers within the InfiniBand subnet.
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