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选项ip.ping_throttle.drop_level 0对系统环境有何影响?

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适用场景

  •  Data ONTAP 8 7-模式    
  •  ONTAP 9 

问题解答

options ip.ping_throttle.drop_level 0对系统环境有何影响?
  • 引入ping限制机制是为了降低基于ICMP协议的拒绝服务攻击带来的风险。
  • 现有的ping限制机制会使用 option ip.ping_throttle.drop_level 选项中存储的值以一秒为间隔获取丢弃数据包之前要接受的数据包阈值。
  • NetApp当前没有要设置 ip.ping_throttle.drop_level的建议值。
  • 默认值为150。该值可以增加到更高的值。
  • option ip.ping_throttle.drop_level此设置并非按客户端设置、但适用于所有客户端。最大限制为4294967295。
  • NetApp不建议在具有多个CIFS客户端的环境中使用任何值的原因是阈值很容易超过。
  • 因此、CIFS客户端会遇到设备暂时不可用或永久不可用的情况。 
  • ip.ping_throttle.drop_level选项设置为50到150并在出现问题描述 时增加。
  • 要允许客户端每秒发送16个以上的数据包、请禁用ping限制。运行以下命令以禁用此选项:

options ip.ping_throttle.drop_level 0

  • 在ONTAP 9.3及更高版本之后、此新集群销售选项已弃用node shell命令:

::> network tuning icmp

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