Added support for CDP and EDP in the latest NetTool and LinkRunner, which will greatly improve the network status information provided to users during fault diagnosis. CDP is the abbreviation of Cisco Discovery Protocol; EDP is the abbreviation of Extreme Discovery Protocol. This article describes the use of CDP and EDP protocols and the information available from LR and NT during network diagnostics.
Technical Background:
Many netw
Faults and tests:A power user in Dalian has a site that has a slow access speed and is interrupted from time to time. The network adapter has been replaced and the PC settings have been checked. The problem cannot be determined. In addition, the
Fluke Networks Fluke Network) recently released a new NetTool II series online network multimeter with the NetProve diagnostic function. It diagnoses Enterprise Network and application connectivity faults four times faster than traditional methods.The newly released NetTool II series has a simple one-step NetProve test function, allowing technicians to quickly and conveniently identify the root cause of the
CableIQ™Qualification tester. The CableIQ tester checks the cable bandwidth to ensure support for VoIP requirements. This prevents shutdown and repair failures when the VoIP device is installed on a cable with insufficient bandwidth.
The Toolbox also contains NetTool with VoIP test options.™Series II online network multimeter. NetTool allows users to deeply observe VoIP calls by installing
Use a JAVA program to obtain the IP address-general Linux technology-Linux programming and kernel information. The following is a detailed description. When using the TCP/IP Internet, you often need to query the IP address of your host and the IP address of the www server. Although we can use IPCONFIG and PING to Query IP addresses, if we use this command in an application or APPLET, we will destroy our application interface.
Therefore, a simple program using JAVA can directly query the IP addr
Android client single-thread download, android client single-Thread
The specific effect is shown in. The specific operation steps are as follows:
1. Create an application named getDataInternet;
2. Modify the string. xml file in res/values. The Code is as follows:
1
3. Compile the fragment_main.xml file in res/Layout. The specific code is as follows:
1
4. Compile the NetTool. java class, which is used to download images. The Code is as follows:1 pa
In the TCP/IP Internet, you often need to query your host's IP address and the WWW server's IP address. Although we can use ipconfig and ping for IP address queries, using this command in an application or applet can compromise our application interface.
To this end I use Java to do a simple program can directly query their own host IP address and the IP address of the WWW server:
File name is Nettool.java (note: Case sensitive in the Java language)
import java.net.*; public class
personnel do not have some simple testing methods to help them quickly identify faults at the bottom of the network. The Network multimeter of fluke network is the best solution to these problems.
Test the connection string between a PC and a vswitch
Nettool
Network multimeter Nettool is a testing tool designed for network maintenance personnel to solve the
1, install the basic Ubuntu graphics interface:
2, install GNOME desktop:
If you want to fully use GNOME as your desktop, you will also need to install:
Apt-get Install gnome-applets gnome-control-center gnome-volume-manager libsmbclient Menu Network-manager-gnome gnome-utils gnome-system-tools gnome-netstatus-applet gnome-nettool Libgnomevfs2-extra
3, must install the software:
Apt-get Install gnome-terminal gedit Firefox
4. Chinese support
mode does not match, check whether the computer and switch ports have been set as automatic protocols.
Figure 2: The NetTool network multimeter is used to test the connection status of network devices at both ends online to obtain the level, transmission line pair, duplex, and adaptive rate.
Step 2: Network Traffic Monitoring Use online tools to check whether the computer has successfully applied to the DHCP server and received the
Setting up VPN Client (PPTP) to connect to some VPN Server shocould be a fairly easy task nowadays-at least most of the online articles/tutorials/videos all suggest so. for example, https://www.youtube.com/watch? V = yugspkfhuqg,Andhttp: // ashu-geek.blogspot.co.uk/2012/05/vpn-virtual-private-network.html.
It is in fact very simple --- well, at least for Windows and Mac OS, least 5 minutes for both OSS. however for Ubuntu (not sure for other Linux variants), it's pain-in-the-ass business !!
Ba
execution. To avoid this problem, you can select the link order "->" build Options dialog box in CCS to add the files in a certain order and add the library files to the end of the connection order, the recommended sequence is: netctrl. lib, hal_xxx.lib, nettool. lib, stack. lib and OS. lib.
Before initiating the startup protocol stack, assign a working memory (SDRAM) to it. The command is _ mmbulkallocseg (extern1 ). You also need to call fdopensess
help document, k prompts to enter the process to be killed, n prompts to enter the process to change the priority, r re-schedules the running process, q: Exit top. 7) The free command shows the number of used and idle memories. The Unit is kilobytes. You can use the-m option to specify the display unit as megabytes. 8) watch command. By default, a command is re-run every two seconds. For example, the watch free command can call the free command every 2 seconds to display the system memory usage
average usage of system resources from the last startup to the present. (Including process, memory, I/O, CPU, etc)
You can also use the options to specify the average calculation interval (in seconds) and the number of computations. For example:
Vmstat 5 10
Run vmstat every five seconds and run it 10 times.
10) the uptime command returns the time and average load from the last start to the present.
11) df command to display hard disk usage
Df-h shows hard disk usage in common units (G, K.
In ad
average calculation interval (in seconds) and the number of computations. For example: vmstat 5 10 this command runs vmstat every 5 seconds and runs 10 times. 10) The uptime Command returns the time and average load from the last start to the present. 11) df command shows hard disk usage df-h displays hard disk usage in common units (G, K. In addition, Ubuntu provides some graphical clients for system monitoring. Common GUI tools include Dash-> System-> Administration-> System Monitor, Conky, v
During the establishment and use of the LAN, users often encounter network failures due to hardware equipment faults. This article uses the specific fault examples and Q A methods, describes the causes and troubleshooting methods for faults of hardware devices (transport media, NICS, hubs, and switches) in the LAN.
I. Common Faults and troubleshooting of transmission media
1. Network Communication fails due to changes in line resistance
[Question]: A computer terminal that can communica
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