Others

1. Prevent "port speed" errors:  Error: The switch is connected to the port configured with "port speed", which may cause loop problems.  (1) bpdu guard ):  ① Definition: when the port configured with "port fast" receives the BPDU, close this port.  

A network protocol is a basic component of a network. A protocol is a combination of several rules and protocols. It generally refers to the conversation between layer n of machine 1 and layer n of Machine 2, the rules and constraints used in this

Basic configuration of Huawei OSPF Protocol 1. Start the ospf process in the system view. perform the following configurations on the corresponding Huawei Router and Huawei switch based on the Router ID. Step 1 run the system-view command to go to

TCP (Transmission Control Protocol) is the Transmission Control Protocol of the host to the host layer. It provides reliable connection services and uses three-way handshakes to establish a connection: the bit code is the TCP flag bit, there are 6

Misunderstanding 1. HTTP is a stateless connection-oriented protocol. Stateless does not mean that HTTP cannot maintain TCP connections,What's more, HTTP uses UDP Protocol (No connection) 2. Keep-Alive is enabled by default from HTTP/1.1 to Keep the

TCP global synchronization analysis with the popularization of the network, information exchange and information sharing have become an essential part of people's daily life. The increasing information (data packets) in the network will inevitably

I. Principles1. allow clients of different local networks to automatically install the system. 2. ping can be achieved through intercommunication across the network, which is the basis for automatic system installation across LAN.3. build a dhcp

Scanning lan ip address 1 with arp-scan, install yum install-y libpcap-devel before installation. If the yum tool www.2cto.com is not installed, install the following package with rpm [root @ oradba arp-scan-1.8] # yum list | grep libpcaplibpcap. i38

1. The concept of IP multicast (multicase, also called Multicast): One-to-multiple communication router that can implement multicast protocol is called multicast router) to adapt to interactive audio and video information multicast, the Internet has

A brief description of the experiment that the H3C simulator Wvrp5.2a does not support sub-interfaces: There is no configuration information in it. I have pasted the configuration information behind the article, if you are interested, you can stick

The client communicates with the Telnet server through an HTTP proxy. Recently, a business requirement occurs: the client automatically logs on to the remote Telnet server and then sends a series of commands to return the command execution result.

SMB, CIFS, and NETBios protocol concepts 1. SMB protocol is based on TCP-NETBIOS, the general port is 139,445. Server Information Block (SMB) is an IBM protocol used to share files, printers, and serial ports between computers. The SMB protocol can

OSPF Protocol principle 1. ospf (Open Shortest Path First) is an Internal Gateway Protocol (IGP) used for decision-making routing in a single autonomous system (. Ospf runs directly on the IP protocol and uses protocol number 89. ospf is a

IGRP, the Load Balancing of the non-equivalent routing Load of the network in the network. In addition, IGRP and MongoDB also support load balancing with unequal paths and use the variance command. The Variance command advertises a n value to the

Description of the configuration Initialization Configuration of the STUB area in the experiment part in ospf: R1: hostname R1interface Loopback0ip address 1.1.1.1 255.255.0interface Serial0/1 ip address 12.1.1.1 255.255.0 clock rate 64000! Www.2cto.

Understanding the meaning of four types of addresses in NAT stub network: there is only one network connected to its neighbor network. Internal Local Address: the IP Address assigned to the internal host. It can be a private IP address defined in

TCP protocol (theoretical) 1. What is different from UDP is that TCP provides a connection-oriented and reliable byte stream service. It is easy to understand connection orientation, that is, the two sides need to establish a connection before

TCP three-way handshake (establish connection)/four-way handshake (close connection) compared with SOCKET developers, the TCP creation process and link deduction process are automatically created by the TCP/IP protocol stack. therefore, developers

ARP (Address Resolution Protocol) I. Introduction when a host sends an Ethernet data frame to another host located on the same LAN, the destination interface (physical address) is determined based on the 48-bit ethernet address ). The device driver

It means that I used three hours yesterday to give a rough overview of this book. I feel like I have almost understood all of the things I should know. I have an impulse to start reading Exam 2 directly. This is against my previous plan: to explore