cisco tdr test

The next-door King has already talked about the principle of TDR and how to determine the TDR resolution. So, we have to correctly measure the circuit impedance on the PCB board, and what needs to be noted?1, the impedance Test industry standardsHave posted a lot of impedance test pictures, re-paste a picture for every

Cisco 2015 campus recruitment test interview summary, Cisco 2015 I registered for the Cisco-EDS job in soy sauce. I wrote a test on October (Saturday), with the following points: c/C ++, Python, Alogrithm OS, Database, Java, and Network. The

In the real world or laboratory environment, Cisco IOS test commands are very useful and powerful commands. Learn the basic usage of this command and learn a few useful sub-commands. This is not surprising if you have never used the Cisco IOS test command. I have met many network administrators who have never heard of

I. troubleshooting commands 1. show command: 1) Global commands: Show version; displays the system hardware and software versions, DRAM, Flash Show startup-config; displays the configuration content written into NVRAM Show running-config; displays the currently running configuration content Show buffers; Detailed output buffer name and size Show stacks; provides the router process and processor utilization information, using stack decode Show tech-support; displays the output of several show com

5th Cisco Test commands and TCP/IP connection failure handlingFirst, fault handling commands1. Show command:1) Global command:Show version; Display system hardware and software versions, DRAM, FlashShow Startup-config; display the configuration content written in NVRAMShow Running-config; display the currently running configuration contentshow buffers; the name and size of the verbose output bufferShow stac

Welcome to the network technology community forum, and interact with 2 million technical staff to access the blueprint provided on the cisco Web page. You can't be lucky to watch it. cisco documentCD should watch the network theory part, pay attention to comparison during the process. There are many IOS apps. The most annoying question is that there are two VLANs. One is to give several displays to determin

One. Test the topology:Two. Test ideas:Three. Basic configuration:A.R1:Interface ethernet0/0IP address 202.100.1.1 255.255.255.0No shutdownIP Route 0.0.0.0 0.0.0.0 202.100.1.2B.R2:1. Interface configuration:Interface ethernet0/0IP address 202.100.1.2 255.255.255.0No shutdownInterface ETHERNET0/1No IP addressNo shutdown2.PPPOE Server configuration:AAA New-modelAAA Authentication PPP Default LocalUsername

I. Overview: In the actual work can often see a strong SSL VPN can bypass deployment, and support routing mode and NAT mode: Router mode requires intranet to VPN assigned address pool address can be router; NAT mode, VPN Client access intranet host, intranet host sees address as VPN interface address, Therefore, the address intranet of the VPN address pool is not required to be routed. If you want to test the way

As a network person, especially a friend of CISCO, simulators are essential tools. Now the most popular simulator is cisco iou. IOU, as a testing tool within CISCO, has been circulating online since the leak. There are already many new versions. When IOU was circulating on the internet, I tested the IOU of Live CD and the later Andlinux IOU. The former is too sim

fails to log on. The system prompts "reject": Enter the local user and password, and the system prompts "REJECTED ". An error message is displayed, indicating that authorization failed: Authorization failed. Enter the correct user (local) Incorrect password to display authentication failure: authentication failed First, add the authentication server in ACS, select the label network configuration, and add the server Add a server and click Add entry. Note that the IP address must be the addre

I. troubleshooting commands 1. show command:1) Global commands:Show version; displays the system hardware and software versions, DRAM, flashShow startup-config; displays the configuration content written into NVRAMShow running-config; displays the currently running configuration contentShow buffers; Detailed output buffer name and sizeShow stacks; provides the router process and processor utilization information, using Stack decodeShow tech-support; displays the output of several show commandsS

One. Test the topology:650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M02/6E/CA/wKiom1WH46fhBjvJAADX2zoss3k937.jpg "title=" TP1. JPG "alt=" Wkiom1wh46fhbjvjaadx2zoss3k937.jpg "/>Two. Test ideas:A. Enable resolution by IP NAT without setting the direction---this way can be accessed directly from the public IP address, or can be accessed by domain name method---unfortunately

DDoS (Distributed denial of service) attack is a simple and fatal network attack using TCP/IP protocol vulnerability, because the TCP/IP protocol is unable to modify the session mechanism, so it lacks a direct and effective defense method. A large number of examples prove that the use of traditional equipment passive defense is basically futile, and the existing firewall equipment will be paralyzed due to limited processing capacity, become a network operation bottleneck. In addition, the target

DDoS (Distributed denial of service) attack is a simple and fatal network attack using TCP/IP protocol vulnerability, because the TCP/IP protocol is unable to modify the session mechanism, so it lacks a direct and effective defense method. A large number of examples prove that the use of traditional equipment passive defense is basically futile, and the existing firewall equipment will be paralyzed due to limited processing capacity, become a network operation bottleneck. In addition, the target

test Environment: a dhcp Server that has DHCP configured , one Cisco switch (iOS version: 12.4), two PCs. topology Diagram for illustration:1-1. Test Purpose:Cisco switches turn on DHCP snooping function, all default ports are required for DHCP Server and PC corresponding port setting DHCP snooingTrust. 650) this.width=650; "Src=" https://s4.51cto.com/wyfs02/

Gigabitethernet 0/0.1 Enter sub-interface Encapsulation dot1q 10 Setting the package typeIP Add 172.26.1.254 255.255.255.0ExitInterface Gigabitethernet 0/0.2 Enter sub-interface Encapsulation dot1q 20 Setting the package typeIP Add 172.26.2.254 255.255.255.0ExitInterface Gigabitethernet 0/0.3 Enter sub-interface Encapsulation dot1q 20 Setting the package typeIP Add 172.26.3.254 255.255.255.0ExitAdd the computer to the corresponding VLAN to obtain the IPThis article is from the "Tommy Lin" bl