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CCNA Study Notes 4 --- vro Startup Process and register value◆ Role of the vro register value (after understanding, used to adjust the optimization of the vro switch work) power-on self-check (post) load and run boot guide microcode to search for IOS image) file loading IOS image file search configuration file loading configuration file normal operation hex 2102 two Bytes 8 bits, sixth adjustable process: ◎ after the boot self-check is successful, rea

During the preparation of the CCNA, the route has been in a state of confusion. Therefore, keep a record of your daily study notes so that you can view them later.There are two configurations for static routes, one is a static route with the next-hop address, and the other is a static route with a send-out interface.For static routes, the usage is as follows:One, the network contains only a few routersSecond, the network only through a single ISP acce

ports. Assign an IP address to VLAN Ten and enable it. Refer to the addressing Table. Configure the default gateway according to the addressing Table. Configure VLANs on S2. On S2, create VLAN 10. Assign Student as the VLAN name. Create VLAN 20. Assign Faculty-admin as the VLAN name. Configure F0/1 as a trunk port. Assign ports F0/11 and F0/18 to VLAN and configure both F0/11 and F0/18 as access ports. Assign an IP address to VLAN Ten and enable it. Refer t

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650) this.width=650; "src=" Http://s5.51cto.com/wyfs02/M00/8B/7E/wKioL1hPzwWwPFqgAAGUAvCBHxo588.png "title=" QQ picture 20161213183532.png "alt=" Wkiol1hpzwwwpfqgaaguavcbhxo588.png "/>Test center of the subject: Changes in the address of the source Ip/mac in the process of data communicationTest instructions: In the box shown, Route1 's IP address and MAC address of the corresponding information, as well as data frame information; The problem is that you can infer what route1 is going to do with

The initial command for routing configuration-CCNA takes notes when I used to study NA, now I have time to share with you ==================================== ========================================================== =====================www.2cto.com show hosts show current host name configuration show sessions show current outgoing TELNET session clear line XXX clear line

=" wkiol1pon6mbx42paaga_e9n2zg502.jpg "/> First, obtain the gateway information (non-private address). After telnet, obtain the user's MAC address (sho ARP | include user IP address) based on the ARP table ), 650) This. width = 650; "src =" http://s3.51cto.com/wyfs02/M02/40/1E/wKiom1POOgmjnOhpAABNrTBnX3M812.jpg "Title =" q2.jpg "alt =" wkiom1poogmjnohpaabnrtbnx3m812.jpg "/> Obtain the port number (sho Mac-table-address Add User Mac) 650) connected to the vswitch based on the user's MAC address.

CCNA advanced network technical materials Network Basics Encapsulation: attaches necessary protocol information to the data before network transmission. Unencapsulate: unseal data from a specific protocol header. Peer layer communication: each layer of the source sender's OSI model must communicate with the peer layer of the target. OSI reference model: 1 physical layer: defines electrical, mechanical, and procedural functions and standards for physic

Tags: ccnaThe more complex the interconnection network environment is, the more likely the network is to fail in terms of connectivity, and the cause of the failure is hard to confirm. Before a network failure occurs, the network administrator should constantly monitor network changes and make timely adjustments to prevent problems. When a network fault occurs, appropriate methods and tools should be used to determine the root cause of the fault, and correct troubleshooting plans should be made.

LAN.WANThe last network segment is a WAN connection and requires 2 host addresses. Support WAN links with just 2 primary seats. 2^2-2 = 2.This leaves 8 bits to define the local subnet address. The next available address block is 172.16.2.192/30.Address: 172.16.2.192Binary representation:10101100.00010000.0000010.11000000Mask: 255.255.255.252Represents 30 bits in binary:11111111.11111111.1111111.11111100The IPV4 host address range provided is:172.16.2.193 to 172.16.2.194, broadcast address is 17

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