| 场景 | 日常巡检、故障前哨 |
|---|---|
| 适用 | 全部交换机 |
| 命令族 | display interface brief | include down / show interfaces status | include 过滤 / display interface brief |
华为 VRP
华为 VRP
<Huawei> display interface brief | include down
! 关注 PHY 或 Protocol 为 down 的行；*down 为人为关闭
<Huawei> display interface brief | include half ! 找半双工口思科 IOS
思科 IOS
SW-CORE-01# show interfaces status | include notconnect|err-disabled|disabled
SW-CORE-01# show interfaces status | include half|a-half
SW-CORE-01# show interfaces counters errors | include [1-9]$ ! 有错误数的行H3C Comware
H3C Comware
<H3C> display interface brief | include DOWN
! Comware 输出大写 DOWN/UP，注意大小写
<H3C> display interface brief | include half过滤关键字差异：华为小写 up/down（人为关闭显示 *down），思科状态词 connected/notconnect/err-disabled，H3C 大写 UP/DOWN。半双工过滤条件：华为/H3C 匹配 half，思科匹配 a-half/half。