Hello,
We've installed some FreeBSD machines as Gigabit sniffers, and I'm wondering if there are any things I can tweak (e.g., buffer size) to help TCPDUMP capture better (we often see packets dropped by the kernel).
Any advice would be appreciated.
Thanks, James
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Enable device polling.
Add the following options to your kernel config, and then compile and install the new kernel:
options DEVICE_POLLING
options HZ=1000
After reboot, enable polling mode on with: sysctl kern.polling.enable=1
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