multicast troubleshooting

operating system is Win98 or win me: recommended to update the operating system to WIN2000SP4 or above version, or install the lower version of the client software 2, ActiveX control is blocked 3, do not install dx8.1 or above version, upgrade graphics driver 4, network connection failure 5, network setup problem 6, the name and password is incorrect 7, the client version does not match the DVR program version 14XV, Q: Network preview screen and video file playback when there is a mosaic or n

------------------------------------Fa1/0/1 Forwarding 20.00% 0.00%3. for network loop problems that cannot be ruled out by default STP configuration, use the BPDUguard feature of STP to prevent broadcast storms. This loop is as follows:Switch ------ hub (portA --- portB)The Switch enables STP, and the hub is intentionally or unintentionally connected with a network cable, resulting in a loop. The SWITCH port does not receive the BPDU of other switches or other ports of the SWITCH, does not trig

In actual work, we always encounter problems in the production environment. If any problem occurs. And the business is very important. Business needs to restore the system to normal in the shortest time, which puts a lot of pressure on people. Under this pressure, it may make me confused. So how can we quickly and effectively troubleshoot faults? The problem is endless. I personally think that only the thought of troubleshooting and thinking can help

------------------------------------Fa1/0/1 Forwarding 20.00% 0.00%3. for network loop problems that cannot be ruled out by default STP configuration, use the bpduguard feature of STP to prevent broadcast storms. This loop is as follows:Switch ------ Hub (Porta --- portb)The switch enables STP, and the hub is intentionally or unintentionally connected with a network cable, resulting in a loop. The switch port does not receive the BPDU of other switches or other ports of the switch, does not trig

Software TestingMedium,Troubleshooting(That isDebugging. The test is successful because an error is found. Identify the cause and location of the error based on the error signs, and correct the error mainly relies on the troubleshooting technology. 1. troubleshooting Process As shown in, the troubleshooting process b

To reduce design complexity and enhance versatility and compatibility, computer networks are designed as hierarchies. This hierarchical system enables a variety of different hardware systems and software systems to easily connect to the network. When analyzing and troubleshooting network faults, administrators should make full use of the layered features of the network to quickly and accurately locate and eliminate faults. However, in the actual

and the expansion of college enrollment, network users are increasing, and the problems brought by network failures are becoming more and more prominent. Therefore, to ensure the stable operation of campus network, familiar with a variety of possible points of failure, rapid positioning and troubleshooting, to ensure the normal teaching, research and management of the university is of great significance. 1 Campus network operation and Maintenance ov

I. Network Complexity General networks include routing, dialing, switching, video, WAN (ISDN, frame relay, ATM ,...) , LAN, VLAN ,... Ii. Fault Handling Model 1. Define the Problem) Detailed and accurate description of fault symptoms and potential causes 2. collect detailed information (Gather Facts) R> Source: key users, network management systems, routers/Switches 1) identify symptoms: 2) Repeat the fault: The verification fault still exists 3) fault frequency investigation: 4) determine the f

In an object-oriented program, the largest switch/case statement I've ever seen has more than 20 conditions. During the run, the code module executes all the conditions each time. Each condition is responsible for creating a new object that is used to communicate with the external use of the application API. After performing some general troubleshooting on one of them, I began to look at the interfaces implemented by the application. To my surprise, e

Believe that many users have encountered the power switch, the fan works but the computer does not start, for the system after the boot of a small number of problems, most users can also be resolved, but encountered even on the boot can not start the problem, most users do not know where to start to solve. In fact, the computer can not start the failure of the normal troubleshooting is not difficult, today small series on the fan work but the host can

Summary of IE solution (troubleshooting) Author: anonymous author: network updated on: Summary of IE solution (troubleshooting) 　　1. Exclude garbled web pages. Some friends asked me why I often see garbled characters on the webpage when I access the internet? In fact, there are two kinds of problems: one is caused by impro

Https://serverfault.com/questions/540831/tap-interfaces-always-disabled-in-linux-bridge TAP interfaces always disabled in Linux Bridge I have a physical interface eth0, and I want to create two virtual interfaces and bridge them with eth0. For this

Compared with a PC, the probability of a server failure is much lower, but the loss caused by the failure is also large. As a server maintenance personnel, they need to know some basic knowledge about server troubleshooting, know what they can do during maintenance to solve problems most quickly, and reduce the downtime of faults. This document is not a complete manual for server troubleshooting. However, i

OSPFTroubleshooting report Fault Point 1: PPPLink fault Fault symptom: The PPP link between R2. Fault analysis: 1) whether the PPP authentication types are consistent 2) whether the user configured for ppp chap authentication is correct 3) is the pppp chap authentication password correctly configured? 4) whether the user performing CHAP authentication includes the PPP service type Troubleshooting: 1) Use "display current-configuration int S0/1/0" on

The superior performance and price of vswitches are greatly reduced, promoting the rapid popularization of vswitches. Network administrators often encounter a variety of switch faults at work. How can they quickly and accurately find and eliminate faults? This article briefly introduces common fault types and troubleshooting steps. As vswitches are widely used in the company's network, from the low end to the middle end, from the middle end to the hig

The superior performance and price of vswitches are greatly reduced, promoting the rapid popularization of vswitches. Network administrators often encounter a variety of switch faults at work. How can they quickly and accurately find and eliminate faults? This article briefly introduces common fault types and troubleshooting steps. As vswitches are widely used in the company's network, from the low end to the middle end, from the middle end to the hig