1. Question: The interface is turned on authentication and it can see the mac address learned on the interface by showing mac before authentication. If the interface's device is authenticated , dose show mac can't see the device? Answer: This can be re

1. Question: Does ip source guard cause cpu to rise? Answer: No, ip source guard is hardware-based, and filtering the ip message smac plus ip that does not conform to the dhcp snooping table item does not cause cpu to rise. 2. Question: What is the

1. Question: Why does the SVI interface down use ACL that cannot take effect? Answer: (1) Check ACL configuration (2) Confirm the direction of the ACL call (3) Confirm whether the physical interface for data communication has invoked the ACL rule

1. Question: What will the port security interface do if it is configured with the switchport port-security shutdown command? Answer: The interface is automatically closed and the interface state is disable. 2. Question: What forms of port security

1. Question: STP View Command: What does the meaning of the p2p and shar of type respectively? Answer: Type field and link capability related, directly connected are p2p, half duplex automatically recognized as shar. 2. Question: What does a NAK mes

1. Question: Is the switch docking virtual machine unreachable? Answer: The data sent by the VM cluster may be a vlan tag. The interface of the switch is configured with a trunk and the corresponding vlan is created. 2. Question: Under the interface

1. Question: Can I mirror the physical ports in the aggregation port separately? Answer: The member ports in the aggregation port cannot be used as mirror destinations independently. 2. Question: How many one-to-many mirrors can I configure? Answ

1. Question: What standard protocol is used for port aggregation? Answer: Standard Protocol for Port Aggregation is 802.3ad 2. Question: The switch has done port aggregation to connect to the computer. Can the computer be used normally? Answer: