sonet network

network Interface (interface) is the network hardware device in the operating system representation method, such as NIC in the Linux operating system with EthX, is a positive integer starting from 0, such as eth0, eth1 ... ethX. And the common cat and ADSL interface is pppx, such as ppp0 and so on;all available network cards, names, configuration files in the mac

Brief introductionOver the past few years we have made significant progress in mobile cellular network performance. However, due to the expansion of network latency, many applications have not been improved.Latency has long been a constraint on mobile networks. Although some progress has been made in recent years, the reduction in network delays has not been keep

IPV4 Address:We know that at the network layer (the Internet layer of TCP/IP architecture), one of the most important protocols is IP protocol, is now in the IPV4 and IPv6 transition period, but at present, IPV4 is still mainstream, so the main Ipv4.Basic IP Address format:The format of the internal IP address of the computer is represented by a 32-bit binary number, in order to make people seem convenient, usually using dotted decimal to represent th

Read Catalogue I. Operating System Fundamentals Two. Principles of network communication 2.1 The essence of the Internet is a series of network protocols 2.2 OSI layer Seven protocol 2.3 TCP/IP five-layer model explained 2.3.1 Physical Layer 2.3.2 Data Link Layer 2.3.3 Network Layer 2.3.4 Transport Layer 2.3.5 Applicat

56, NT network card and Novell network card interoperability Hot Network Recently, a computer training center to establish a diskless NT teaching network, because the NT diskless Workstation network card has strict requirements: the number of cards (Adapter ID, that is, nod

Fourth Chapter Network layer 1. Two services at the network layer : Virtual circuit Service (reliability guaranteed by the network) and datagram service (reliability guaranteed by the user host)2. Internet Protocol(1) Address Resolution Protocol ARP and Inverse Address Resolution Protocol (RARP): Under IP protocol, IP uses these two protocols to resolve to th

I. fault descriptionFault Location:An electronics Bureau Fault symptom:The network is severely congested, and communication between internal hosts or even between internal hosts is interrupted. Fault details:Network Communication is suddenly interrupted, some VLANs cannot access the Internet, and access to other VLANs is also interrupted. Ping packet testing is performed in the IDC, it is found that the ping packet from the central switch to the host

Wireless network Bridge maintenance work often requires experienced network administrators to coordinate, so the performance of the network often attracts many users of the eyeball, here to introduce you several aspects. How to improve the quality of network services, enhance competitiveness? I think we must strengthen

It is believed that most home users will prefer to use the Windows XP operating system, but the Windows 2000 operating system can still be seen in many office-used computers. In the recent network management maintenance, the author after a long time careful comparison and pondering, found in the Windows 2000 system for network card device replacement operation and Windows XP system has not exactly the same

introducehey! Does Socket programming make you frustrated. Is it hard to get useful information from man pages? You want to keep up with the times to do an Internet program, but frown on the structure of BIND () before you call Connect (). ... Well, I'm here now, and I'm going to share my knowledge with everyone. If you understand the C language and want to go through the Web programming swamp, then you come to the right place. The Reader 's document is written as a guide, not as a reference bo

Definition: A set of rules, standards, or conventions established by a network protocol for data exchange in a computer network.Features: Semantics, syntax, timing.Hierarchy: The application layer (application layer) presentation layer (Presentation layer) session Layer Transport layer (Transport layer) network layer Layer) Data Link Layer physical layer (Physics layer)Common protocols: TCP/ipnetbeuiipx/spx

Computer network learning notes-Computer Network Overview 1. Differences between computer networks and distributed systems 1) Computer Networks (autonomous and interconnected) computer networks are connected by many computers, they can ask for help from each other. Three important features: computers connected to each other in computer networks are relatively independent. -- Each computer can provide servic

Most apps now need to get data from the Web. So access to the network is inevitable. But before we go back to the network, we should make a state judgment of the network first. In fact, before accessing the network we have to do some state judgment, corresponding to some state judgment to do processing, not directly us

The working state of network equipment is directly related to the running state of network, after a long period of work, the network equipment working status is very easy to error, in fact, in the resolution of network equipment work caused by network failure, we should be g

Network Protocol Application Layer DHCP · DNS · FTP · gopher · HTTP · IMAP4 · IRC · NNTP · XMPP · POP3 · sip · SMTP · SNMP · SSH · Telnet · RPC · RTCP · RTP · RTSP · SDP · soap · gtp-stun · NTP · SSDP · More Transport Layer TCP · UDP · TLS · DCCP · sctp · RSVP · PPTP · More Network Layer IP (IPv4 · IPv6 )· ICMP · ICMPv6 · IGMP · rip · OSPF · BGP · Is-Is · IPSec · More Data

When the system administrator finds that the network performance is poor, the system administrator can allocate resources through network load balancing to optimize the resources. The development of the Internet has brought infinite fun to people's lives and brought infinite convenience to people's work. However, the rapid development of the network also makes pe

★Isolated with signaling Media Proxy Devices To ensure the security of the softswitch network, you can divide the security areas of the softswitch network according to the security requirements of the devices in the softswitch network and the security areas of the softswitch network, it is divided into two security zon

Network Learning notes-Computer Network basics 1 What is network: The network is the interface between several computer hosts or network printers, through the network cable or wireless network