The Options field in the network LSA is set to the logical OR of
      the Options that each router on the link advertises in its link-
      LSA

我理解为“Network-LSA中的选项字段的结果是链路上互相通告的路由器的Link-LSA的选项字段进行逻辑或运算后的结果。” 不知是否妥当