Cisco 공인 네트워크 어소시에이트(CCNA 200-125)

회차 · v.2017-09-22

Which show interfaces command output indicates that the link may not be functional due to a Data Link layer issue, while the Physical layer is operational?

하나 선택Ethernet 0/0 is up, line protocol is upEthernet 0/0 is up, line protocol is downEthernet 0/0 is down, line protocol is upEthernet 0/0 is down, line protocol is down