Setting the buffer count

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The buffer count for the qeth-based network devices was increased on all Linux® servers.

The number of buffers for inbound traffic was set to 128 (the default is 64) in the file:
/etc/udev/rules.d/51-qeth-0.0.1000.rules
where the value 1000 represents the first cdev of the virtual network device.
In addition, to enlarge the buffer count this line was added to the udev rule:
ACTION=="add", SUBSYSTEM=="ccwgroup", KERNEL=="0.0.1000", ATTR{buffer_count}="128"