hdlc protocol

High-Level Data Link Control (HDLC) is a bit-oriented data link layer protocol for data transmission over the synchronization network. It is an International Organization for Standardization (ISO) developed based on the ibm sdlc (synchronous Data Link Control) protocol.The Link Control Protocol focuses on the logical transmission of segments into physical blocks

, PPP can carry other protocols, including DECnet and Novell's Internet Packet Exchange (IPX).Iii. HDLChdlc---bit-oriented synchronization protocol: High-level Data link control (Advanced Information link controls procedures). HDLC is a typical representative of the bit-oriented data Link Control protocol, which does not depend on any kind of character encoding s

PPP Protocol (Point-to-place protocol) belongs to the network interface layer, which is mainly used for dial-up internet access. PPP has the ability to dynamically assign IP addresses, allows IP addresses to be negotiated at the time of connection, has error detection and correction capability, and supports data compression; in order to establish point-to-point link traffic, each end of the PPP link must fi

I. Applicable conditions: 1. DDN is the main line, and PSTN is the standby line. 2. The HDLC protocol is used on DDN and the PPP protocol is used on PSTN. 3. dynamic routing can be performed on the main line or the standby line. In this example, dynamic routing is performed on the main line. II, Network Topology: Iii. Solution descr

HDLC is the default protocol used by CISCO routers. A new router uses HDLC Encapsulation by default when no encapsulation protocol is specified.1. Related commandsPort Settings　 Note: 1. The following example shows the Cisco synchronous serial port status.Router # show interface serial 0Serial 0 is up, line

1. Related commands Port setting Task CommandSet HDLC encapsulation hdlcSet the DCE line speed to clockrate speedResets a hardware interface, clear interface serial unit.Show interface status show interfaces serial [unit] 1Note: 1. The following example shows the Cisco synchronous serial port status.Router # show interface serial 0Serial 0 is up, line protocol is upHardware is MCI SerialInternet address is

Package for synchronous serial link (serail point-to-point link)3.1-hdlc/ppp High-level Data link Control HDLC (high-level Data Link controls): is a bit-oriented synchronous data Link layer protocol developed by ISO, developed by the SDLC protocol. HDLC Specifies the encapsu

4.1 basic HDLC Configuration Purpose: 1. master the basic configurations of HDLC. 2. Understand the HDLC Encapsulation Format. Tutorial topology: 650) this. width = 650; "src =" http://www.bkjia.com/uploads/allimg/131227/06195955L-0.png "title =" 4.1.png "/> Tutorial steps: 1. Deploy the HDLC encapsulation and IP

Routers are often used to build wide-area networks, and the footprints of WAN links are very different from those on Ethernet. Common WAN packages are HDLC, PPP, Frame-relay, etc., and this chapter describes HDLC and PPP. PPP, in contrast, has more functions than HDLC.1.1.1 HDLC IntroductionHDLC is a frame-wrapping for

follows: 650) this.width=650; "Src=" Http://s3.51cto.com/wyfs02/M01/87/60/wKiom1feXgPTit7yAAAHOcoo-kg649.png-wh_500x0-wm_3 -wmp_4-s_3151135178.png "title=" Ppp.png "width=" and "height=" border= "0" hspace= "0" vspace= "0" style= "width:500px; height:63px; "alt=" Wkiom1fexgptit7yaaahocoo-kg649.png-wh_50 "/>The first two 7E is the frame bound flag, the value is fixed to 7E;FF as the Address field, because the endpoint of the point-to-end link is unique, so the field is set to Ff;03 (C) as the

HDLC frame format In HDLc, data and control packets are transmitted in the standard frame format. Frames in HDLC are similar to BSC character blocks, but the datagram and control packets in the BSC protocol are transmitted independently. commands in HDLC should be t

1, WinCE network drive structure1.1 WINCE Network structure1) The WINCE NDIS network interface provides the following capabilities: Miniport NIC Driver interface Support for 802.3 (MAC), 802.5 (RING), IRDA Support WAN Dynamically binding NIC and Plug and Play Supports multiple network adapters with one protocol MediaSense to support NIC 2) network structure diagram of winceFrom this communication structure, it can be

2. Telnet protocolThe Telnet protocol is a member of the TCP/IP protocol family and is the standard protocol and main way of Internet remote Login service. It provides users with the ability to perform remote host work on the local computer. Use a Telnet program (such as Putty) on the end user's computer to connect to the server. End users can enter commands in t

In today's era of rapid network development, routers play an important role. Because the router acts as a relay system in the network layer, Provides a routing and forwarding function for data between the third-tier networks. Therefore, the functions, functions, and basic configurations of routers must be mastered as members of the IT industry. In the following, we will make a brief analysis on the vro from two aspects: how to set up the simplest network environment in the experiment, common si

In today's era of rapid network development, routers play an important role. Because the router acts as a relay system in the network layer,Provides a routing and forwarding function for data between the third-tier networks. Therefore, the functions, functions, and basic configurations of routers must be mastered as members of the IT industry.In the following, we will make a brief analysis on the vro from two aspects: how to set up the simplest network environment in the experiment, common situa

http://blog.csdn.net/heanyu/article/details/6202500 RTP (Real time Transport Protocol) RTP is a transport protocol for multimedia traffic on the Internet that is published by the IETF (Internet Engineering Task Force) as RFC1889 . RTP is defined as a one-to-many transmission, with the purpose of providing time information and implementing stream synchronization. Typical applications for RTP are built on U

2017-02-10 reliable data transmission principle, reliable data transmission protocol, automatic retransmission request protocol, stop and wait protocol, redundant packet, bit alternation Protocol, sliding window protocol "Computer network-Top Down Method" (original book 6th

2017-02-11 structure reliable data transmission protocol, Sliding window protocol, bit alternation protocol, fallback N-Step protocol, and select retransmission protocol 1: Redundant data duplicate (packet), 2: Inverted count timer (countdown timer), 3: Bit alternating

somewhat similar, there are some important mechanisms or concepts need to be carefully understood, such as number and confirmation, flow control, resend mechanism, send acceptance window.Basic model and concept of TCP/IPPhysical LayerDevice, repeater (repeater), hub (hub). For this layer, data received from one port is forwarded to all ports.Link LayerProtocol: SDLC (Synchronous Data Link Control) HDLC (High-level Data Link Control) PPP

RTP (Real Time Transport Protocol) RTP is a transmission protocol for multimedia data streams over the Internet.Rfc1889Release. RTP is defined to work during one-to-one or one-to-many transmission. It aims to provide time information and implement stream synchronization. Typical RTP applications are built on UDP, but can also work on TCP, ATM, and other protocols. RTP itself only guarantees the transmissio