Cisco C880 M4 Configuration Manual page 127
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Also See for C880 M4:
- Service manual (132 pages) ,
- Operating manual (58 pages) ,
- Service supplement manual (27 pages)
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net.core.wmem_max = 16777216
net.core.rmem_default = 262144
net.core.wmem_default = 262144
#
net.core.optmem_max = 16777216
net.core.netdev_max_backlog = 300000
net.ipv4.tcp_slow_start_after_idle = 0
net.ipv4.conf.default.promote_secondaries = 1
net.ipv4.conf.all.promote_secondaries = 1
net.ipv4.icmp_echo_ignore_broadcasts = 1
net.ipv4.conf.default.accept_source_route = 0
net.ipv4.tcp_rmem = 65536 16777216 16777216
net.ipv4.tcp_wmem = 65536 16777216 16777216
#
net.ipv4.conf.default.accept_source_route = 0
net.ipv4.tcp_syncookies = 0
net.ipv4.tcp_dsack = 0
#
net.ipv4.tcp_no_metrics_save = 1
net.ipv4.tcp_moderate_rcvbuf = 1
net.ipv4.tcp_window_scaling = 1
net.ipv4.tcp_timestamps = 1
net.ipv4.tcp_sack = 1
sunrpc.tcp_slot_table_entries = 128
# Linux SAP swappiness recommendation
vm.swappiness=10
# Next line added for SAP HANA Database on 2015.09.16_02.09.34
net.ipv4.ip_local_port_range=40000 65300
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