Original address: http://blog.sina.com.cn/s/blog_49843aeb0100i0bc.htmlMulticastfunction: Inter-host communication usage, inter-routing communication usage concept :IP multicast technology, which is one or more hosts (multicast source) that allows sending a single packet to multiple hosts (at the same time) TCP/IP network technology, is a point-to-multipoint communicationWhy use it ?: In the application of n
This article compares the IPSec VPN and ssl vpn technologies in detail, so that users from all walks of life can better understand the VPN technology and select the appropriate VPN product.
Another VPN implementation technology different from the traditional
I. Data Transmission over an IP Network
Multicast technology is one of the three methods of data transmission over an IP network. Before introducing the IP multicast technology, we will give a brief introduction to the unicast, multicast, and broadcast modes of data transmission over an IP network:
GroupBroadcast
Unicast transmission: Implements point-to-
Introduction
In Chapter 1st, we mentioned three IP addresses: unicast address, broadcast address, and multicast address. This chapter introduces broadcast and multicast in more detail.Broadcast and multicast are only used in UDP. They are very important for applications that need to transmit packets to multiple receivers at the same time. TCP is a connection-orie
To accomplish useful work, peers in peer-to-peer applications must be able to discover each other and interact with each other. This article provides an implementation of a discovery based on IP multicast.
Before a software entity can participate in a direct peer-to-peer interaction with a Peer-to-peer application feature, the entity must discover the appropriate peers to interact with. All available Peer-to-peer architectures provide a solution for
Class D addresses are used for multicast, which starts with 1110, and the remaining 28 are used to identify multicast addresses (the remaining 28 are non-structured addresses ), MAC addresses starting with 01005e are used to represent MAC multicast addresses, while the remaining 23 are used to identify multicast. IP
first to understand the next UDP
UDP is the abbreviation of Userdatagram protocol, the Chinese name is User Datagram Protocol, is a connectionless transport layer protocol in the Reference Model of OSI (open System interconnection, open Systems Interconnection). Provides a transaction-oriented, simple, unreliable information delivery service, and IETF RFC 768 is the formal specification of UDP. The protocol number for UDP in IP packets is 17.
The difference between UDP and TCP: http://blog.csdn
Neighbor Relationship between activation and pe3
Neighbor 192.168.168.4 send-community both
No auto-Summary
Exit-address-family
!
Interface serial1/0 --- configure the interface connecting to CE2
Ip vrf forwarding red -- associate this interface with VRF red
IP address 10.10.40.2 255.255.255.252
Interface ethernet0/1 -- configure interfaces connected to 7206
IP address 192.168.1.13 255.255.255.252
Half-duplex
Tag-switching IP -- enable tag switching on this inte
Igp-Summary: an advanced distance vector routing protocol, which features both distance vector and link status routing protocols. China site, applletalk and other network layer protocols. VPN is an efficient routing protocol. It has the following features: 1. control layer: Different igp protocols, small AD (AD can be used to manage the distance and the advertised distance of VPN, this refers to the Managem
In the project, the Ys Private protocol uses multicast technology, which uses Python to send multicast packets when verifying its security features, and to make a record here.
Python has complete support for sockets. Some of the APIs though have a different signature than the POSIX equivalents. It is therefore possible to write multicast servers and clients
Tags: CISC IEEE 2.3 Address STP Protocol pause nbsp STP network deviceTurn from: Multicast MAC addressThe MAC address is a 48bit (6-byte hexadecimal number) address used by the Ethernet two layer to identify the device location. The MAC address is divided into two parts, the first 24 bits being the organization's unique identifier (OUI, organizationally unique identifier), and the last 24 bits being assigned by the vendor itself.MAC addresses have uni
OverviewUnicast is used for end-to-end communication between two hosts, and broadcasts are used for data communication on all hosts on the entire LAN for a host. Unicast and broadcast are two extremes, either to communicate with a host, or to communicate with hosts on the entire LAN. In practice, it is often necessary to communicate with a specific set of hosts, rather than all hosts on the entire LAN, which is the purpose of multicasting.IP Multicast
What is unicast, multicast, and broadcast?
The terms unicast, multicast, and broadcast are all terms used to describe the communication methods between network nodes. So what exactly do these terms mean? What is the difference? Let's break it down.
--★Unicast★--The communication between network nodes is like a conversation between people. If a person speaks to another person, the term network technology is
First to understand the next UDP
UDP is the abbreviation of Userdatagram protocol, the Chinese name is User Datagram Protocol, is a connectionless transport layer protocol in the Reference Model of OSI (open System interconnection, open Systems Interconnection). Provides a transaction-oriented, simple, unreliable information delivery service, and IETF RFC 768 is the formal specification of UDP. The protocol number for UDP in IP packets is 17.
The difference between UDP and TCP: http://blog.csdn.
In recent years, with the rapid development of information technology, a large number of network applications have increased, so that the existing huge data transmission volume has multiplied, and the optimized bandwidth can meet the needs of increasing data transmission volume, IP multicast technology is an important means to optimize bandwidth. It is applicable to data transmission services from multi-point to multi-point or from one point to multip
With the development of broadband, the increasing demand for multimedia services has stimulated the popularization and development of IP multicast technology and become an indispensable key technology for the next generation of networks. Currently, the IP multicast technology is quite mature, which means that operators and enterprises can use this technology to obtain economic benefits.
Mature IP
1. Introduction
IP multicast transfers data to some hosts. One or more hosts are represented by one IP address. Multicast transfers data to all hosts in the best way like normal IP Address Transmission. The group members are dynamic. Members can join or leave a group at any time. The group size and position are not limited. A host can be a member of multiple groups. The Group can be permanent or temporary.
The little Porter is here again, 51 holidays are over.1. Introduction
Broadcast and multicast only apply to UDP because TCP is a connection-oriented protocol (IP address determination)
Unicast: The Ethernet frame is only destined for a single destination host, and the destination address indicates a single receive interface. In this mode, any two host communication will not affect the other hosts in the network (except for the
Encryption, the center needs to decrypt the data transmission branch tunnel and re-encrypt the received data in the branch tunnel. Another case is that the two branches of communication are in the same city and the center is in another city, which introduces unnecessary latency. When the scale of the star IPSec network (hub-and-spoke) continues to expand, the configuration of the Traditional VPN becomes more complex and is not easy to maintain and tr
WIN8 Cisco VPN 442 Error solution/Error Code 442 Cisco VPN Clinet with Windows 8 when you start using win8, because of work needs to use Cisco VPN Client, however, in win8, the Cisco VPN Client reports a 442 Error and cannot be used. The following Error message is displayed: Error Code 442 while connect to
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.