[Question] 如果我要监测交换机的接口状态，up变为down，是不是需要每一个接口都写一条阈值规则
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Description
### Question
交换机又不是用了所有口，如果规则不具体到哪个接口，肯定有up也有down，告警不就一直出？是不是需要每一个接口都写一条阈值规则
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Research direction
No file, test, or entry point is named. Clarify how interface state alerts should handle unused switch ports and whether rules must target individual interfaces; done means documenting the supported configuration and expected alert behavior.
Written by the indexing model from the issue text.
Assessment
- Domain
- networking, observability-sre
- Issue type
- Documentation
- Difficulty
- 1/5
- Estimated time
- Under an hour
- Activity status
- Quiet
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100