LCP virtual currency
Publish: 2021-04-18 12:13:53
1. I know a little bit about this on the Internet. It feels like a pyramid scheme. It has nothing to do with bitcoin. It's just under the guise of bitcoin. Bitcoin house has reported similar pyramid schemes, such as spark entertainment bitcoin, bitcoin hang up, Porter coin and so on. I hope this netizen will be more vigilant to prevent being cheated.
2. Now ADSL uses PPP to realize user identity authentication
PPP: point to point protocol
if you want to use ADSL to access the Internet, you need to use PPPoE protocol
and PPPoE is: PPP over Ethernet
PPP
provides a standard method for uploading and transmitting multi protocol packets on point-to-point connection. PPP was originally designed to provide an encapsulation protocol for IP traffic transmission between two peer nodes. In the TCP-IP protocol set, it is a data link layer protocol (layer 2 in OSI mode) for synchronous molation connection, which replaces the original non-standard layer 2 protocol, namely slip. In addition to IP, PPP can also carry other protocols, including Internet packet switching (IPX) of DECnet and Novell<
PPP is mainly composed of the following parts:
encapsulation: a method of encapsulating multi protocol datagrams. PPP encapsulation provides the multiplexing technology that different network layer protocols transmit on the same link at the same time. PPP package is well designed to maintain compatibility with most commonly used hardware
link control protocol: PPP provides LCP with comprehensive functions, which is suitable for most environments. LCP is used to automatically agree on encapsulation format options, handle packet size limits, detect loop links and other common configuration errors, and terminate links. Other optional functions provided by LCP are: to authenticate the identity of the peer unit in the link, and to determine whether the link function is normal or the link fails
network control protocol: an extended link control protocol used to establish, configure, test and manage data link connections
configuration: use simple and self-made mechanism of link control protocol. This mechanism can also be applied to other control protocols, such as network control protocol (NCP)
in order to establish point-to-point link communication, each end of PPP link must first send LCP packets in order to set up and test the data link. After the link is established and the optional functions required by LCP are selected, PPP must send NCP packets to select and set one or more network layer protocols. Once each selected network layer protocol is set, datagrams from each network layer protocol can be sent on the link
the communication settings of the link will remain unchanged until LCP and NCP packets close the link, or when some external events occur (such as the expiration of the pause timer or the interference of the network administrator)
Application: suppose you are also in Windows 98 and have created a "dial-up connection". Then you can set the PPP protocol through the following methods: first, open the "dial up connection" attribute and select the "server type" tab; Then, select "PPP: Internet, Windows NT server, Windows 98" by default, and other function options of the protocol can be set in advanced options; Finally, click OK
PPPoE enables a computer on a network to connect to a remote access device through a simple bridge access device. In this model, each user host uses its own PPP stack, and the user uses a familiar interface. Access control, billing, service types, etc. can be carried out for each user instead of each site
in order to provide point-to-point connection over Ethernet, each PPP session must know the Ethernet address of the remote communication partner and establish a unique session identifier. PPPoE includes a (Ethernet address) discovery protocol to provide this function
the PPPoE process is divided into two different stages, namely, the discovery stage and the PPP session stage. When a host wants to initiate a PPPoE session, it must first perform discovery to determine the Ethernet MAC address of the other host and establish a PPPoE session identifier (session)_ ID Although PPP defines an end-to-end peer-to-peer relationship, discovery is a client server relationship. In the process of discovery, the host (as the client) finds an access concentrator (as the server). According to the topology of the network, the host may be able to find multiple access concentrators. The discovery phase allows the host to discover all the access concentrators and select one from them. When the discovery phase is successfully completed, both the host and the selected access concentrator have all the information needed to establish a point-to-point connection over the Ethernet
the discovery phase remains stateless until a PPP session is established. Once a PPP session is established, both the host and the access concentrator must allocate resources for a PPP virtual interface
PPP: point to point protocol
if you want to use ADSL to access the Internet, you need to use PPPoE protocol
and PPPoE is: PPP over Ethernet
PPP
provides a standard method for uploading and transmitting multi protocol packets on point-to-point connection. PPP was originally designed to provide an encapsulation protocol for IP traffic transmission between two peer nodes. In the TCP-IP protocol set, it is a data link layer protocol (layer 2 in OSI mode) for synchronous molation connection, which replaces the original non-standard layer 2 protocol, namely slip. In addition to IP, PPP can also carry other protocols, including Internet packet switching (IPX) of DECnet and Novell<
PPP is mainly composed of the following parts:
encapsulation: a method of encapsulating multi protocol datagrams. PPP encapsulation provides the multiplexing technology that different network layer protocols transmit on the same link at the same time. PPP package is well designed to maintain compatibility with most commonly used hardware
link control protocol: PPP provides LCP with comprehensive functions, which is suitable for most environments. LCP is used to automatically agree on encapsulation format options, handle packet size limits, detect loop links and other common configuration errors, and terminate links. Other optional functions provided by LCP are: to authenticate the identity of the peer unit in the link, and to determine whether the link function is normal or the link fails
network control protocol: an extended link control protocol used to establish, configure, test and manage data link connections
configuration: use simple and self-made mechanism of link control protocol. This mechanism can also be applied to other control protocols, such as network control protocol (NCP)
in order to establish point-to-point link communication, each end of PPP link must first send LCP packets in order to set up and test the data link. After the link is established and the optional functions required by LCP are selected, PPP must send NCP packets to select and set one or more network layer protocols. Once each selected network layer protocol is set, datagrams from each network layer protocol can be sent on the link
the communication settings of the link will remain unchanged until LCP and NCP packets close the link, or when some external events occur (such as the expiration of the pause timer or the interference of the network administrator)
Application: suppose you are also in Windows 98 and have created a "dial-up connection". Then you can set the PPP protocol through the following methods: first, open the "dial up connection" attribute and select the "server type" tab; Then, select "PPP: Internet, Windows NT server, Windows 98" by default, and other function options of the protocol can be set in advanced options; Finally, click OK
PPPoE enables a computer on a network to connect to a remote access device through a simple bridge access device. In this model, each user host uses its own PPP stack, and the user uses a familiar interface. Access control, billing, service types, etc. can be carried out for each user instead of each site
in order to provide point-to-point connection over Ethernet, each PPP session must know the Ethernet address of the remote communication partner and establish a unique session identifier. PPPoE includes a (Ethernet address) discovery protocol to provide this function
the PPPoE process is divided into two different stages, namely, the discovery stage and the PPP session stage. When a host wants to initiate a PPPoE session, it must first perform discovery to determine the Ethernet MAC address of the other host and establish a PPPoE session identifier (session)_ ID Although PPP defines an end-to-end peer-to-peer relationship, discovery is a client server relationship. In the process of discovery, the host (as the client) finds an access concentrator (as the server). According to the topology of the network, the host may be able to find multiple access concentrators. The discovery phase allows the host to discover all the access concentrators and select one from them. When the discovery phase is successfully completed, both the host and the selected access concentrator have all the information needed to establish a point-to-point connection over the Ethernet
the discovery phase remains stateless until a PPP session is established. Once a PPP session is established, both the host and the access concentrator must allocate resources for a PPP virtual interface
3. It is mainly engaged in imported brand engineering plastics with a registered capital of RMB 10 million. It is one of the most complete import engineering plastics agents in the instry
the agent manufacturers are SABIC (all series can do, more than 500 models have been sold, most of the conventional models are in stock, the advantage procts are PC and its alloy, PPO, PEI), Toray, DIC (mainly PPS), Nilit nylon, and some models of BASF (PBT pa), Ticona (LCP POM PPS) are also sold
plastic has nearly 10 years of distribution experience in polycarbonate PC business. Its customers cover the main manufacturing intensive areas in Southern China, central China, East China and North China in the Chinese mainland. The instry covers lighting, building materials, sports and leisure, electronics and food packaging. In addition to SABIC, it also acts as an agent for South Korea LG, South Korea SamSung, South Korea Lotte and zhetiefeng's PC. The PC manufacturers involved in the distribution business include Bayer, Mitsubishi, teiren and Chuguang
advantages
1. Support multi currency transactions (US dollars, Hong Kong dollars and RMB), flexible payment methods
2. Flexibly assist customers to optimize invoice issuing
3. Generally, the fastest real-time quotation, the latest quotation the next day
4, The delivery time of most models is 1-26 weeks shorter than that of peers
5. Delivery to the door with freight
6. More than 500 models are sold routinely
7. Provide all the material certificates that the original factory can provide
8. The minimum purchase quantity of most models is 25kg
9. Provide material selection suggestions
10. Provide mold opening suggestions. We have our own brother factory We have our own brother factory, which can help our customers with proction on very favorable terms
12, Machine debugging to deal with proction failure, abnormal procts, proct assembly and other deep processing guidance
the agent manufacturers are SABIC (all series can do, more than 500 models have been sold, most of the conventional models are in stock, the advantage procts are PC and its alloy, PPO, PEI), Toray, DIC (mainly PPS), Nilit nylon, and some models of BASF (PBT pa), Ticona (LCP POM PPS) are also sold
plastic has nearly 10 years of distribution experience in polycarbonate PC business. Its customers cover the main manufacturing intensive areas in Southern China, central China, East China and North China in the Chinese mainland. The instry covers lighting, building materials, sports and leisure, electronics and food packaging. In addition to SABIC, it also acts as an agent for South Korea LG, South Korea SamSung, South Korea Lotte and zhetiefeng's PC. The PC manufacturers involved in the distribution business include Bayer, Mitsubishi, teiren and Chuguang
advantages
1. Support multi currency transactions (US dollars, Hong Kong dollars and RMB), flexible payment methods
2. Flexibly assist customers to optimize invoice issuing
3. Generally, the fastest real-time quotation, the latest quotation the next day
4, The delivery time of most models is 1-26 weeks shorter than that of peers
5. Delivery to the door with freight
6. More than 500 models are sold routinely
7. Provide all the material certificates that the original factory can provide
8. The minimum purchase quantity of most models is 25kg
9. Provide material selection suggestions
10. Provide mold opening suggestions. We have our own brother factory We have our own brother factory, which can help our customers with proction on very favorable terms
12, Machine debugging to deal with proction failure, abnormal procts, proct assembly and other deep processing guidance
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