Oracle 11g RAC 监听程序在调整过网络后出现监听进程offline，而且两台节点之间频繁切换，查看日志/var/log/message 发现有频繁的
Oracle 11g RAC 监听程序在调整过网络后出现监听进程offline，而且两台节点之间频繁切换，查看日志/var/log/message 发现有频繁的注册撤销动作。
监听日志 /u01/app/oracle/diag/tnslsnr/rac1/listener/trace/listener.log
监听文件 /u01/app/11.2.0/grid/network/admin/listener.ora
oracle错误日志 /u01/app/oracle/diag/rdbms/oaorcl/oaorcl/trace/alert
rac进程日志 /u01/app/11.2.0/grid/log/rac/crsd/crsd.log
??/u03/oracle/app/11.2.0/grid/log/orajdcpt*/alertorajdcpt*.log
??/u03/oracle/app/11.2.0/grid/log/orajdcpt*/cssd/ocssd.log
/u01/app/11.2.0/grid/log/rac1/agent/crsd/oraagent_grid/oraagent_grid.log
发现存在ip波动。
解决方法：
在/etc/sysctl.conf 中添加
net.ipv4.conf.default.arp_ignore = 1
含义：确定不同的方式发送的回应收到ARP协议要求 0-（默认）代表任何地方的目标IP地址，配置任何接口。 1-答复只有目标IP地址是本地地址上配置传入接口。
net.ipv4.conf.all.arp_ignore = 1 含义：同上
之后 sysctl -p
并在/etc/sysconfig/network-scripts/ifcfg-eth文件中添加mac地址，可用ifconfig查看
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本文永久更新链接地址：
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