Research on roaming handoff strategy for 2G operators to build 3G network

December 24, 2003, one of the world's top 500 of the United Arab Emirates Telecom (Emirates Telecommunications Corporation, referred to as Etisalat) officially announced that The WCDMA network from China's Huawei Technology Co., Ltd. was formally

Analysis of GPRS protocol stack function

Zhang Bing Tao, is currently the Guangzhou Jinpeng Group Engineering Technology Center Technical Support Department Manager and senior system engineer. April 1998 graduated from Northeastern University, the state Key laboratory of continuous rolling

Simplifiber Multifunctional Optical Cable testing tool

Overview Verify multimode and Single-mode optical cables Measurement of optical power and loss to ensure cable network performance Self-motion measuring wavelength function prevents measurement errors Store 100 Test Results Use Linkware cable

Mobile IP technology in wireless access

IntroductionWith the rapid development of the Internet, people increasingly want to be flexible, fast, low-cost, anytime and anywhere access to the Internet. Because of these features, wireless communication technology is increasingly used in

NetScreen Firewall (NSRP) configuration

Considering the netscreen of network devices, the design of a special backup "NetScreen Redundancy Protocol (NSRP)", Redundancy Protocol (NSRP) is a proprietary protocol supported on selected NetScreen devices that provides high availability (HA)

Juniper Firewall reset device to factory default settings

Method 1: People who have used juniper products should know a little, juniper product password Forget the words is a very painful thing, why say so? Come down and listen to what I have to tell you! The loss of the password is unrecoverable, so we

Vista SP1 Beta to package all patches without expecting

If you want to wait until the Windows Vista SP1 release, to upgrade to the new operating system, Microsoft advises you: Don't wait! "The purpose of the Release Update component (Service PACK;SP) is to package all previously released patches," said

MSTP Network: Constructing 3G transmission network with MSTP

Point of view 1: In the construction of 3G mobile transmission network, a simple idea is to build a set of independent ATM network for UTRAN, but ATM switching equipment is more expensive, and as a basic network, practice proves that it is not the

Juniper Virtual-link Configuration Instance in OSPF

As shown in the topology map, AREA2 and area0 are not directly connected, so the network does not have a full topology, at which point we can do virtual-link on the ABR area2 and AREA0 connection, the following is the configuration script: system {

Vista SP1, XP SP2 performance overall comparison

There have been a lot of tests on the performance of Vista SP1, XP SP3, and the "Mikael" from Futuremark's official forum contrasts Vista SP1 with XP SP2. First look at the test platform: Processor: Intel Core 2 Duo E6600 @ 3.2GHz (400mhzx8)

Key points for configuring PIX dual-Machine failover

1, to find out about the "master" the "preparation" of several concepts: Failover Link Failover link is used to communicate each other's working status between devices, and the information passed on Failover link includes: o Current status of the

Troubleshoot installing MSI 2869 error without administrator privileges in Vista

Vista, if UAC is turned on, when the program is running, if administrator privileges are used, the prompt box will usually pop up, or there will be an "run as administrator" in the right menu of the program. The MSI file, however, does not have the

UNIX Environment Advanced Programming: System V Semaphore

1. Semaphore (semaphore) is mainly used to protect critical resources. A process can determine whether some shared resources can be accessed based on it. In addition to being used for access control, semaphores can also be used for process

Onsite protection and data recovery scheme after Aix-removed LV

In the AIX environment, due to maintenance misoperation, storage mapping error, and so on accidentally deleted LV mistakenly, this loss is usually huge. Improper protection and recovery operations after deletion may cause data to be unrecoverable or

Automating the configuration of Kickstart servers

The last article just completed the automatic installation of Nagios, this article continues, think of the previous days manually configured kickstart server process is more cumbersome, the idea is not clear, or the installation configuration

How to create a self-signed certificate for an RD Gateway

Creating a Secure RD Gateway is a great thing, so you can access the internal remote access host server directly from the public network environment. The material needed to build this secure RD Gateway is the RD gateway itself, as well as a

Analysis of the function of reverse proxy server

In the traditional sense, proxy server is the server between the user computer network and the Internet, its function is to proxy network users to obtain network information, it can be understood as a transit point for network information. If the

How to develop game music with HTML 5 Audio API

Introduced Audio is a great way to make the multimedia experience very compelling. If you've ever tried to watch a movie with a sound shutdown, you're likely to have noticed that. The game is no exception! The memories of my favorite video games

WSUS 3 Department and AD patch distribution and troubleshoot uninstall error issues

For WSUS deployment steps, follow the link below: http://struggle.blog.51cto.com/333093/79953 This blog post is very clear, according to the steps of the blog, you give some practical process to remind: 1. It is recommended that the "Do not

How to export a user under a specified OU through the dsquery command

Today, colleagues in the maintenance of the ad when said that want to export a user under an OU to do the collation, so think of the dsquery command to do the inspection and export, specific see below: General company AD Architecture is not the

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