protocol number

Session 1 RSTP1. Overview of STPPublic: 802.1dSTP (General stp), 802.1wRSTP (new rapid STP), 802.1sMSTP (the latest practical multi-instance STP, support for multi-vendor device Mix)Cisco private: Pvst, pvst+, r-pvst+ (corresponds to above, but no

A conditional probability problem(1) The total number of equipment in a group of 2, the proportion of 3/4, daily access to the site through a device 0.012%, the probability of access to the site through equipment b 0.008%,One day the site is visited,

Why is there a TCP/IP protocolAll over the world, a wide variety of computers run their own different operating systems for everyone, and these computers are used in many ways when expressing the same message. It is as if God in the Bible has

Description of functional descriptions:Gets or sets the options associated with a socket. Options may exist in multi-tier protocols, and they always come out of the top sockets Layer today. When you manipulate socket options, the options are located

First, the actual application of the network classificationBlock data streams: FTP, TFTP, inventory updateNo direct human interaction requiredBandwidth is important, but not a critical factorInteractive Data Flow: Inventory queries, database

This article describes how to obtain the host name, protocol, and IP address in php, including functions such as gethostbyaddr, gethostbynamel, getprotobyname, and getprotobynumber, and how to apply the $ _ SERVER variable. This article describes

PIM-DM Basics PIM-DM uses five RIMv2 messages Hello Join/Prune (Add/CUT) Graft grafting) Graft-ACK (OK) Assert (Declaration) The PIMv2 router uses the Hello message to discover the neighbor, when the PIMv2 router PIM-SM or PIM-DM) is active,

A very important field in the packet format of the network layer---packet is called the protocol number. For example, if the transport layer is a TCP connection, then the protocol number in the network layer IP packet will have a value of 6, if it

Operator Overloading in Swift tutorial Http://www.raywenderlich.com/80818/operator-overloading-in-swift-tutorial Author: Corinne Krych Translator: Meng xiangyue blog: http://blog.csdn.net/mengxiangyue This is my first translation. It is inevitable

1.1 Calculation of IP checksumIP check is for the IP header, that is, only the IP header, and for the IP data part of the verification, the corresponding four times the agreement to ensure that the IP head of the test and the field is 16bit.The

Operator Overloading in the Swift tutorial and swift Operator Overloading Http://www.raywenderlich.com/80818/operator-overloading-in-swift-tutorial Author: Corinne Krych Translator: Meng xiangyue blog: http://blog.csdn.net/mengxiangyue This is my

Introduction to the Socket functionsocket.socket(family=af_inet, type=sock_stream, proto=0, fileno=none) Create a new socket using the given address family, socket type and protocol number. The address family should beAF_INET(the

NetFilter IntroductionThe NetFilter in the Linux kernel is a powerful state-based firewall with connection tracking (Conntrack) implementations. Conntrack is the core of NetFilter, and many of the enhanced features, such as address translation (NAT),

checkdnsrr-DNS traffic checks for the specified host (domain name) or IP address closelog-Turn off System log links define_syslog_variables-initialization of all syslog-related variables DNS_CHECK_RECORD-CHECKDNSRR Alias DNS_GET_MX-GETMXRR Alias dns_

Linux below getsockopt/setsockopt function description "Getsockopt/setsockopt system call"Function Description:Gets or sets the options associated with a socket. Options may exist in multi-tier protocols, and they always appear on the

http://blog.csdn.net/clarkcc1988/article/details/8825106 JAVA TCP, Socket,minaWhat is a socketTwo programs on the network realize the exchange of data through a two-way communication connection, one end of this two-way link is called a socket. The

Linux in 2.6.32 version can support 37 protocol families, each protocol family is represented by a net_proto_family structure instance, at the time of system initialization, the protocol family corresponding to each protocol family is subscript,

1. PurposeA recent game development requires the use of Netty and Protobuf, previously used Thift (https://thrift.apache.org/), and then found a netty, protobuf development materials, The online stereotyped is the copy of the official Localetime

Chapter 10. Debian System configuration File Description Table of Contents 10.1. . Bash_profile,. BASHRC,. Bash_history and. Bash_logout 10.2. /ETC/PASSWD,/etc/shadow and/etc/group 10.3. /etc/login.defs 10.4. /etc/securetty 10.5. ~/.gnomerc 10.6. ~/

This article describes how to configure packet filter support for PPTP VPN clients. The Windows Server 2003 Routing and Remote Access service supports virtual private networks (VPNs). VPN clients can use Point-to-Point Tunneling Protocol (PPTP),