Which CLI command displays the IS-IS level used by each interface?（）A、show clns neighborB、show isis neighborC、show clns interfaceD、show isis interface
题目内容(请给出正确答案)
Which CLI command displays the IS-IS level used by each interface?（）
- A、show clns neighbor
- B、show isis neighbor
- C、show clns interface
- D、show isis interface
