It’s just beginning through CCIE Now I think of taking CCIE that it was quite a long time ago. I’m going to write this to commemorate the years that are still memorable. I skipped the NA and NP exams of cisco and took the CCIE exams directly. Considering the time cost of NA and NP, it is also necessary to study for a long time to prepare for the exam. Also, when I decided to take the exam, I had been working for several years in the networking industry which cisco equipment often encounters.

1. Question: There are two ONC frames, one frame has one node and the other frame has two nodes. Can these three nodes be clustered? Answer: Yes. Nodes with different frames can be clustered to ensure connectivity.

1. Question: If mac-based 1x authentication after the success of that user authentication, the subsequent user authentication will normally jump to the vlan? Will it affect users who have previously been successfully authenticated? Answer: Configure mac vlan to jump and not affect each other. 2. Question: If you do not need SAM execution to get users offline, can I remove SAM in anti-agent scenarios? Answer: No, ASME needs to rely on SAM synchronization user offline information. So as to view a user's agent situation.

1. Question: Can access controlbe deployed at the same time as SC? Answer: Yes, two scenarios are supported with the same SDN deployment using the same SDN switch. 2. Question: Can SDN's SC scheme routing pattern and transparent mode be deployed at the same time? Answer: Yes, service nodes in different modes can have the same service chain.

1. Question: What happens when ONC adds a device by configuring a new public property? Answer: Command is valid for subsequent new additions and for devices that have been added. The corresponding device needs to be selected for modification. 2. Que

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 l

1. Question: After logging is turned on, is there any syslog file in the directory? Answer: It’s need half an hour cache in or after the restart can be viewed by the way of cisco sdir. 2. Question: How do I resolve an input command interrupted by a

1. Question: Two users who want the same SSID cannot access each other, does port protection on the switch take effect? Answer: When two users are connected to two different APs on the same switch, configuring port protection on the switch can achieve

1. Question: What is the SSH login username? Answer: When configuring SSH, if the local database is not called, then the user name can be arbitrary when ssh logs in, the password is Cisco Router #line vty 0 4 Router (config-line) #transport input