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RRPP (Rapid Ring Protection Protocol, fast Ring Network Protection Protocol) Link Layer Protocol dedicated for Ethernet rings. Fast convergence speed. The convergence time is independent of the number of nodes in the ring network. RRPP domain: the

Difference Between TCP and udp tcp-Transmission Control Protocol, which provides connection-oriented and reliable byte stream service. Before the customer and the server exchange data with each other, a TCP connection must be established between the

POP3 details 2.1. The typical communication process of receiving emails from the email server is as follows. 1) The user runs the user agent (such as Foxmail and Outlook Express ). 2) The user agent (hereinafter referred to as the client)

The following uses port 80 as an example, if you want to know other port numbers, you can also use this method .......................... 1. In windows, how does one view port 80 usage? Which process is occupied? How to terminate.Here we mainly use

Http, TCP/IP, html Definition 1. What is http?Http is the upper layer protocol of TCP/IP. Tcp is responsible for ensuring that files sent from one network node to another can arrive at the destination as a complete file. Although this file may be

LISTEN: this is also an easy-to-understand state, indicating that a SOCKET on the server is in the listening state and can accept connections. SYN_RCVD: this status indicates that the SYN packet is received. Normally, this status is an intermediate

Reverse path forwarding is an important foundation for reverse route forwarding in CISCO Multicast RPF. Only after successful RPF detection can multicast traffic be correctly forwarded in the network. When you query the keyword "cisco rpf detection

Analysis of soap http Binding HTTP Communication over TCP/IP. The HTTP client uses TCP to connect to the HTTP server. After the connection is established,The client can send an HTTP request message to the server: POST/item HTTP/1.1 Host: 189.123.345.

The ospf Protocol Configuration experiment summary project is required. In the past two days, an environment is set up on GNS3, And the ospf cost value configured on the corresponding interface is 1000, however, some problems are found and the

The Point-to-Point Protocol (ppp) consists of the following parts: link suppression Protocol: the LCP provided by PPP is comprehensive and practical in most environments. LCP is used to actively unify encapsulation style options, process packet size

1. Establish a connection protocol (three-way handshake) (1) the client sends a TCP packet with SYN sign to the server. This is the packet in the three-way handshake process. 1. (2) The server responds to the client. This is the 2nd packet in the

Three steps to clean VLAN deletion yesterday I met a friend who said VLAN deletion is not clean. I asked how to delete it. He said no vlan. In this case, the interface is also configured when VLAN is configured. Next I will write down how to delete

Storage entry: some differences between fiber optic Nic and HbA cards are that in the early SAN storage system, data transmission between servers and switches is performed through optical fibers, because the server is to transmit SCSI commands to

Multi-IP ing ARP analysis a company has 30 public IP addresses provided by China Unicom. Some public IP addresses are mapped to private IP addresses of internal servers, and some of them are directly configured on servers, some of them are not

How does OSPF establish the neighbor relationship? First, send a hello packet to all neighbors, create a neighbor, and put it in your neighbor table. Then, send the LSA to the neighbor, receive the neighbor of the LSA, put the LSA into its own

Network traffic control is a very important part of LAN maintenance. It mainly involves the following methods: 1. Divide the network segments into different network segments by mask, which can reduce network broadcast, it can achieve fast

The most common problem for network administrators is the network connection problem. Maybe the computer of the company's employees cannot access the Internet, so we can detect the problem through a few simple steps, however, there is a network

Easyvpn is a common VPN solution in daily life. Although easyvpn can only be used on cisco devices, it is a very practical solution with low environmental requirements. The client only needs to connect to the Internet, and does not need to consider

1. Sending is bidirectional, that is, the sender has a sending window, receiving window, congestion window, and the receiver also has its own sending window, receiving window, and congestion window. 2. There are three window concepts: sending window,

ACS introduction Cisco Secure Access Control Server (Cisco Secure Access Control Sever) is a highly scalable and high-performance Access Control Server that provides a comprehensive network solution for identity recognition, it is an important