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OSPF currently uses version 2, which can adapt to large-scale networks. Because OSPF does not have the limit on the number of RIP hops, and the concept of regions is introduced to be larger than the network size supported by VPN. OSPF has been

When a VPN site spans multiple ISPs, the PE device needs to perform vpn route interaction between different as domains, thus forming a cross-domain VPN. RFC 2547bis provides three cross-domain VPN solutions: L VRF-to-VRF: Use sub-interfaces between

This document mainly discusses the possible problems, such as routing loops and sub-optimal paths, if a VPN site has a dual PE in an MPLS environment. Make an analysis, and introduce the problems related to OSPF In the mpls vpn environment. 1.

UDP is a non-connection-oriented, unreliable, unordered, and traffic-free transport layer protocol. Each datagram sent by UDP is a record-type datagram, the so-called record-type datagram is the record boundary that the receiving process can

1. Introduction To make protocol software generic and portable, protocol software writers will not fix all the details in the source code. Instead, they parameterized the protocol software. In this way, the same compiled binary code can be used on

Over the years, network administrators have come up with many feasible methods to analyze and solve physical network faults, such as using SNMP and NetFlow for data collection or using protocol analyzer to view original network frames and data

Avaya announced on July 15, December 07, 2012 that it launched a new communication architecture-Avaya Aura virtualization Environment (Avaya Aura Virtualized Environment, Avaya Aura VE) for Virtualized Unified Communication applications ), to help

There are many types of wireless networks in the network. Here we will introduce the relevant content of the wireless Mesh network standard. First, we will make a comparison based on several wireless network types, and then we will learn more about

The current network structure is quite complex, and more mobile terminals are added to the network. Then, the wireless wlan ap can be upgraded in time to meet new requirements. Previously, 802.11a/B/g WLAN was only used for basic connections: to

WLAN is a wireless LAN. It combines the advantages of wireless communication technology and computer networks, and uses wireless channels as the transmission medium to implement wireless network communication within a short distance. The basis of

Now anyone deploying and designing a wireless LAN should use 802.11n wireless access points. This is not only because the price can be comparable to that of 11a/g, but also because of the availability and range of 11n, less wireless access points

WMNThere are two main methods to study networking technology. One is to carry out the research work by using the simulation method, for example, based on the NS-2 and OPNET simulation software, establish the WMN network protocol model and service

Today, more and more products are joining the wireless family. Laptops, mobile phones, cameras, projectors, and other devices have become one of the indispensable office and communication devices, it is precisely because of its high mobility that

Wireless Network CardAndWireless Network AdapterThese two concepts are often confused by many novice users, and some sellers sometimes cannot figure out these two devices during sales promotion, when introducing such devices, we often confuse the

With the increasing popularity of wireless networks, more and more institutions and enterprises are beginning to implement wireless LAN. Up to now, wireless LAN is generally composed of clients connected to the access point, and the Access Point

From iptv to FaceTime video, enterprise video applications are growing rapidly. These videos are usually sent and received by mobile devices connected to the enterprise's wireless LAN. Now the network administrator must implement a new WLAN design

We all know that the amount of information is determined by the frequency of electromagnetic waves. The narrower the frequency, the longer the transmission distance, the smaller the loaded data. The wider the frequency, the shorter the transmission

In general, the 802.11 series of wireless network products have good compatibility, and most wireless network adapters and wireless routers do not have compatibility issues. But for the sake of stability, we recommend that you use the same brand of

Wi-Fi signals are invisible in reality. Therefore, it is difficult for people to use their senses to determine which signal is strong or weak. Recently, an Australian art architect created a Wi-Fi signal model in the form of art, which roughly

WLAN operation has multiple authentication methods, but the most common method is to pop up the Portal logon page. That is, the user searches for the AP of the carrier, connects to it to obtain the IP address, opens the browser, and enters the