1. Question: What is the difference between the SDN Cloud Campus Access Mode and the Kernel Mode?
Answer: Access mode: Using a port security scheme, legitimate users form static ip+mac bindings on the port.
Gateway mode: Turns off dynamic arp learning capabilities and legitimate users adopt static arp bindings.
2. Question: Does the SDN need to change the IP address of the cluster IP before it can be authorized before it can be authorized?
Answer: Needed
3. Question: Access control and under what circumstances will be on the pending list
Answer: (1) First access
(2) IP conflict
(3) IP/VLAN inconsistencies
(4) IP changes
(5) Position change
(6) Gateway ARP spoofing
4. Question: Access control kernel mode and gateway device receives the ARP information of the unadmitted terminal, how to deal with it?
Answer: Send on only ONC and do not study ARP.
5. Question: How will be handled that Control access mode with control access switch received arp message?
Answer: It will be forwarded normally while a copy is copied to send the ONC controller.
6. Question: Do You need NTP servers when the access control scheme is deployed in multiple clusters?
Answer: The NTP server must be configured.
7. Question: Access control gateway mode that where is the default access location?
Answer: The lower link of the core switch.
8. Question: Does the user terminal that has been online need to be certified again after the access control control control control time is over?
Answer: No need to flush inside for control.
9. Question: What is the separation of the three type when access control adds equipment “business”?
Answer: openflow/netconf/snmp. Only the SNMP protocol is displayed when the device type is universal.
10. Question: What does the business network mean in the access control scheme?
Answer: The segment of the terminal (VLAN)
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