Host Tuning

[EliciaHeera]

Only applicable to 10g hosts. Need to overwrite the /etc/sysctl.conf with:
net.core.rmem_max = 536870912
net.core.wmem_max = 536870912
net.ipv4.tcp_rmem = 4096 873
80 268435456
net.ipv4.tcp_wmem = 4096 65536 268435456
net.core.netdev_max_backlog = 250000
net.ipv4.tcp_no_metrics_save = 1
net.ipv4.tcp_congestion_control = htcp
net.ipv4.conf.all.arp_ignore=1
net.ipv4.conf.all.arp_announce=2
net.ipv4.conf.default.arp_filter=1
net.ipv4.conf.all.arp_filter=1
net.ipv4.tcp_mtu_probing = 1
net.ipv4.tcp_keepalive_time = 15000