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linux gigabit network tweak

network setup for gigabit networks

net.ipv4.tcp_timestamps = 1
net.ipv4.tcp_window_scaling = 1
net.ipv4.tcp_sack = 1
net.ipv4.conf.default.rp_filter = 1
net.core.rmem_max = 13000000
net.core.wmem_max = 13000000
net.core.rmem_default = 13000000
net.core.wmem_default = 13000000
net.ipv4.tcp_rmem = 13000000 13000000 13000000
net.ipv4.tcp_wmem = 13000000 13000000 13000000
net.ipv4.tcp_mem = 13000000 13000000 13000000
net.core.netdev_max_backlog = 30000
net.core.optmem_max = 2000000
net.ipv4.route.flush = 1

setup done on:

  • cora
  • charon
  • dax
  • lethe
  • pax
  • styx

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