The E6000 NX110 in slot A1 connects to an external switch (Alcatel). The NX110 has two virtual local area networks (VLANs): VLAN 5 and VLAN 20. The VLAN 20 network cable connects to port G0/16, and the VLAN 5 network cable connects to port G0/23, as shown in Figure 1.
Figure 1 NX110 networking
A power failure occurred. After the power supply is recovered, and a network cable is connected to port G0/23 on the NX110, ports in VLAN 20 cannot communicate with external networks. If port G0/16 or G0/23 is separately connected, the communication is normal.