安装Oracle 11g RAC过程中，修改内核参数报错：error: "net.

安装Oracle 11g RAC过程中，修改内核参数后，执行sysctl -p出现以下错误：

[root@r1 ~]# sysctl -p
net.ipv4.ip_forward = 0
net.ipv4.conf.default.rp_filter = 1
net.ipv4.conf.default.accept_source_route = 0
kernel.sysrq = 0
kernel.core_uses_pid = 1
net.ipv4.tcp_syncookies = 1
error: "net.bridge.bridge-nf-call-ip6tables" is an unknown key
error: "net.bridge.bridge-nf-call-iptables" is an unknown key
error: "net.bridge.bridge-nf-call-arptables" is an unknown key
kernel.msgmnb = 65536
kernel.msgmax = 65536
kernel.shmmax = 68719476736
kernel.shmall = 4294967296

原因：查阅网上相关资料，大概是说报错的3个参数依赖于bridge模块，该模块如果没有加载则会现上面的输出错误。

解决方案：
1.可忽略此错误，不影响Oracle RAC的安装使用。
2 加载相关模块

[root@r1 ~]# modprobe bridge
[root@r1 ~]# lsmod | grep bridge
bridge                 83177  0 
stp                     2218  2 bridge,garp
llc                     5546  3 bridge,garp,stp

再执行sysctl -p，则不会报错。

[root@r2 ~]# sysctl -p
net.ipv4.ip_forward = 0
net.ipv4.conf.default.rp_filter = 1
net.ipv4.conf.default.accept_source_route = 0
kernel.sysrq = 0
kernel.core_uses_pid = 1
net.ipv4.tcp_syncookies = 1
net.bridge.bridge-nf-call-ip6tables = 0
net.bridge.bridge-nf-call-iptables = 0
net.bridge.bridge-nf-call-arptables = 0
kernel.msgmnb = 65536
kernel.msgmax = 65536
kernel.shmmax = 68719476736
kernel.shmall = 4294967296

（编辑：李大同）

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