to the Base network ports of the switch modules in slots 2X and 3X. The LOM supports Wake
on LAN (WOL) and PXE functions.
Figure 2-15 Connections between the LOM and I/O modules
NOTE
l In addition to the LOM, the compute node connects to the Fabric ports of the switch modules
through the network ports on mezzanine cards.
l Powering off the compute node forcibly will make the WOL function of the LOM ports invalid.
l If flow control is enabled for a LOM port, the switch module connected to the LOM port must also
have flow control enabled.
Table 2-10 I/O modules supported by the LOM
I/O Module
I/O Module
Slot
LOM Remarks
CX916 2X/3X √ -
1E/4E × The LOM cannot communicate
with the I/O modules in slots 1E
and 4E.
CX920 2X/3X √ -
1E/4E × The LOM cannot communicate
with the I/O modules in slots 1E
and 4E.
2.6 I/O Expansion
2.6.1 PCIe Cards
l The server supports a range of PCIe cards to provide diverse expandability and ease of
peripheral connections.
FusionServer Pro CH121 V5 Compute Node
User Guide
2 Hardware Description
Issue 06 (2019-08-10) Copyright © Huawei Technologies Co., Ltd. 21
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