Setup Guide

Server Configuration Profiles: User’s Guide
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11.3 InfiniBand modes
InfiniBand network devices can transition between ‘Ethernet’ mode and ‘IB (InfiniBand)’ mode using the
NetworkLinkType attribute. While in ‘Ethernet’ mode, the network device will present with an FQDD starting
with NIC (e.g. NIC.Slot.4-1-1). While in ‘IB’ mode, the network device will present with an FQDD starting with
InfiniBand (e.g. InfiniBand.Slot.4-1-1).
Example of a device in ‘Ethernet’ mode:
<Component FQDD="NIC.Slot.4-1-1">
<Attribute Name="NetworkLinkType">Ethernet</Attribute>
Example of a device in ‘IB’ mode:
<Component FQDD="InfiniBand.Slot.4-1">
<Attribute Name="NetworkLinkType">IB</Attribute>
When using SCP Import to transition between modes, two Part Replacement messages will appear in the
LCL like the example below.
2020-10-22 09:29:58 PR8 Device not detected: Mellanox ConnectX-6 Single Port VPI HDR
QSFP Adapter - 98:03:9B:9F:51:42(NIC in Slot 4 Port 1 Partition 1)
2020-10-22 09:29:58 PR7 New device detected: Mellanox ConnectX-6 Single Port VPI HDR
QSFP Adapter - 98:03:9B:9F:51:42(InfiniBand Controller in Slot 4)
These messages are expected because of the FQDD change in the device.
The configuration results for a NetworkLinkType change will use the FQDD of the original mode. In this
example the device is in Ethernet mode and switched to IB mode.
Racadm>>lclog viewconfigresult -j JID_033767124177
SeqNumber = 2316
FQDD = NIC.Slot.4-1-1
Operation Name = CHANGE
DisplayValue = BlnkLeds
Name = BlnkLeds
OldValue = 15
NewValue = 0
Status = Success
Operation Name = CHANGE
DisplayValue = NetworkLinkType
Name = NetworkLinkType
OldValue = Ethernet
NewValue = IB
Status = Success
Despite having different FQDDs, these devices are the same. The set of attributes available to these devices
will be different depending on the mode. The feature sets available to these devices are outside of the scope
of this document. Please review the network devices user manual for full details.