原文提到的這四項問題, 我認為可以趁著年度剛開始, 將它們當作重點項目好好檢查!
... Therefore, I have a list of a few things that should not appear in a clean network:
1. Configuration not saved
2. Router interface down
3. Switch Trunk interface down
4. HSRP/VRRP/GLBP group with only one router