流规则冲突中遮蔽冲突查询语句

流规则冲突中的遮蔽冲突可以通过查询语句进行检测。以下是一些示例查询语句，可用于检测遮蔽冲突：

1. 查询所有存在遮蔽冲突的流规则：

SELECT r1.*, r2.* 
FROM rules AS r1, rules AS r2 
WHERE r1.rule_id <> r2.rule_id 
AND r1.priority = r2.priority 
AND r1.match_field = r2.match_field 
AND (r1.action_mask & r2.action) <> 0 
AND (r2.action_mask & r1.action) <> 0;

2. 查询特定交换机上存在遮蔽冲突的流规则：

SELECT r1.*, r2.* 
FROM rules AS r1, rules AS r2, switch_table AS s 
WHERE r1.rule_id <> r2.rule_id 
AND r1.priority = r2.priority 
AND r1.match_field = r2.match_field 
AND (r1.action_mask & r2.action) <> 0 
AND (r2.action_mask & r1.action) <> 0 
AND r1.switch_id = s.switch_id 
AND s.switch_name = 'switch1';

这些查询语句基于假设，即规则表包含以下字段：rule_id、priority、match_field、action、action_mask 和 switch_id。您需要根据实际情况进行调整。