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2. OPERATION
⚫ Precautions for mounting and using multiple LAN adapters
If multiple LAN adapters are mounted and there are frequent interrupt requests from either
of the adapters or the amount of processed data is too large, the performance of the adapters
may not be as high as expected. (This is because an interrupt request from a LAN adapter
requires a higher CPU load compared to the amount of processed data and if multiple LAN
adapters are mounted and used, it takes a very long time for the CPU to process all interrupt
requests from the LAN adapters.)
If you mount and use multiple LAN adapters, confirm that each built-in LAN adapter and
optional adapter can perform as expected. If they do not, adjust the network load or change the
LAN adapter settings by following the procedure below. For details about each configuration
item, see the description at the bottom of the corresponding setup window.
(The display image assumes Windows® 10 but it is similar under other OS.)
1. Execute steps 1 though 5 in "● Setting the network transfer speed" in "2.8 Setting Up
the LAN Interface".
2. Click the Advanced tab. Select the following item from the property list.
・
DMA Coalescing
Sets an upper limit on the maximum amount of latency applied to any network packet due to direct Memory
Access(DMA) Coalescing.
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