ccna chapter 4 osi transport layer

... www.bkacad.com 45 Chapter 4 - OSI Transport Layer CCNA Exploration version 4. 0CCNA Exploration version 4. 0 Flow Control When datagrams arrive too quickly for a host or gateway to process and the transport ... Học viện mạng Bách khoa - Website: www.bkacad.com 29 Transport Layer Role and Services ã Describe the role of segments in the transport layer and the two principle ways segments can be marked ... mạng Bách khoa - Website: www.bkacad.com 25 Transport Layer Role and Services Học viện mạng Bách khoa - Website: www.bkacad.com 9 ã At the Transport layer the three basic operations of reliability...

Ngày tải lên: 22/12/2013, 13:17

... been segmented by the Transport layer, placed into packets by the Network layer, and further encapsulated as frames by the Data Link layer. The purpose of the Physical layer is to create the ... to transport high RF signals, especially cable television signals. Characteristics & Uses of Network Media Học viện mạng Bách khoa - Website: www.bkacad.com Chapter 8 - OSI Physical Layer CCNA ... viện mạng Bách khoa - Website: www.bkacad.com Chapter 8 - OSI Physical Layer CCNA Exploration 4. 0CCNA Exploration 4. 0 Học viện mạng Bách khoa - Website: www.bkacad.com Characteristics &...

Ngày tải lên: 22/12/2013, 13:17

... Network Layer in data networks ã The protocols of the OSI model Network layer specify addressing and processes that enable Transport layer data to be packaged and transported. The Network layer ... known as routing. 4. Decapsulation Học viện mạng Bách khoa - Website: www.bkacad.com 4 ( Refer to 5.1.1 ) Network Layer Fields Học viện mạng Bách khoa - Website: www.bkacad.com 14 ã 8 bits ã Specifies ... size for the packet. Network Layer Fields Học viện mạng Bách khoa - Website: www.bkacad.com 13 ã 4 bits ã Indicates datagram header length in 32 bit words Network Layer Fields Học viện mạng Bách...

Ngày tải lên: 22/12/2013, 13:17

... Học viện mạng Bách khoa - Website: www.bkacad.com Chapter 3 - Application Layer Functionalityand Protocols CCNA Exploration 4. 0CCNA Exploration 4. 0 DNS - Example Học viện mạng Bách khoa - Website: ... Describe how the TCP/IP Application Layer protocols provide the services specified by the upper layers of the OSI model. ã Define how people use the Application Layer to communicate across the ... packet 33 DHCP Server1 broadcasts a DHCPACK packet 44 DHCP Client DHCP Server1 Overview ã Describe how the functions of the three upper OSI model layers provide network services to end user applications. ã...

Ngày tải lên: 12/12/2013, 14:15

... communications. Học viện mạng Bách khoa - Website: www.bkacad.com Chapter 2 - Communicating over the Network CCNA Exploration 4. 0CCNA Exploration 4. 0 End Devices and their Role on the Network ã The network ... that are compatible with other networks. ã The Open System Interconnection (OSI) reference model released in 19 84 was the descriptive network model that the ISO created. ã It provided vendors ... Communication Servers and Modems. – Security Devices (firewalls). The TCP/IP Model ã The first layered protocol model for internetwork communications was created in the early 1970s and is referred...

Ngày tải lên: 12/12/2013, 14:15

... Networks Hc vin mng Bỏch khoa - Website: www.bkacad.com Chapter 1 - Living in a Network Centric World CCNA Exploration 4. 0CCNA Exploration 4. 0 Học viện mạng Bách khoa - Website: www.bkacad.com ... Website: www.bkacad.com Networks Supporting the Way We Live ã Data networks that were once the transport of information from business to business have been repurposed to improve the quality...

Ngày tải lên: 12/12/2013, 14:15

... IP (VoIP) – Routing multiple Layer 3 Basic Network Media Required to Make a LAN Connection Học viện mạng Bách khoa - Website: www.bkacad.com – Routing multiple Layer 3 protocols Special services ... construction. Electromagnetic Interference/Radio Frequency Interference ã Must be considered when choosing a media type. ã Interference can be produced by electrical machines, lighting, and other ... lightweight, flexible, small diameter, which allows it to fit into small spaces. The connectors, RJ -45 plugs: easy to install. ã Fiber-optic cables: contain a thin glass fiber. Crimps or sharp bends...

Ngày tải lên: 22/12/2013, 13:17

... and wavelength of the optical signal. Layer 2 addressing and its Impact on Network Operation and Performance Data Link Layer ã OSI Data Link layer (Layer 2) physical addressing, implemented ... addressing and its Impact on Network Operation and Performance Network Layer ã Network layer (Layer 3) addresses, such as IPv4 addresses, provide the ubiquitous, logical addressing that is understood ... is the lower Ethernet sublayer of the Data Link layer. MAC is implemented by hardware, typically in the computer Network Interface Card (NIC). ã The Ethernet MAC sublayer has two primary responsibilities: ...

Ngày tải lên: 22/12/2013, 13:17

... Connecting Upper Layer Services to the Media 11 ã To support a wide variety of network functions, the Data Link layer is often divided into two sublayers: an upper sublayer and an lower sublayer. – ... Internetwork 44 Học viện mạng Bách khoa - Website: www.bkacad.com Data Link Layer Protocols- The Frame 38Học viện mạng Bách khoa - Website: www.bkacad.com Overview Upon completion of this chapter, ... signal paths are defined by Data Link layer protocols. ã The Data Link layer "sees" the logical topology of a network when 24 ã The Data Link layer "sees" the logical topology...

Ngày tải lên: 22/12/2013, 13:17

... into a Layer 2 or Layer 3 service. 4- 48 Cisco 7600 Series Ethernet Services Plus (ES+) and Ethernet Services Plus T (ES+T) Line Card Configuration Guide OL-16 147 - 04 Chapter 4 Configuring Layer ... page 4- 27 ã EVC On Port-Channel, page 4- 36 ã LACP Support for EVC Port Channel, page 4- 40 ã DHCP Snooping with Option-82 on EVC, page 4- 44 ã IP Source Guard for Service Instance, page 4- 49 ã ... submode. 4- 44 Cisco 7600 Series Ethernet Services Plus (ES+) and Ethernet Services Plus T (ES+T) Line Card Configuration Guide OL-16 147 - 04 Chapter 4 Configuring Layer 1 and Layer 2 Features ...

Ngày tải lên: 25/01/2014, 11:20

... Server Telnet 19 Transport Layer TCP UDP 4  Transport Layer: Responsible for creating and maintaining a logical connection between the endpoints  What are the two protocols at the transport layer? TCP ... expires Receive buffers are increasing, less bits to process. 44  Step 1: Client sends ISN, SEQ=8563 (last four digits) Transport Layer www.cisco.com TCP Segment 7  Primary responsibilities: Tracking ... to the application layer protocol (example TFTP) to decide what to do, such as prompt the user to download/upload the entire file again. Total: 1111101111111111 Transport Layer Overview Client...

Ngày tải lên: 01/04/2014, 12:20

... equivalent measure- ments (Section 4. 3) and is given by $R M   18 2 g ad m (4. 40) Equations 4. 36, 4. 37, 4. 39, and 4. 40 constitute a complete set of equations from which N(t) can be determined. The ... problem is that, as deposition occurs, the deposited sediments may erode and this erosion can modify the observed deposition rate. In deposition experiments, deposition and erosion inherently occur ... LLC 144 Sediment and Contaminant Transport in Surface Waters some are not. In this situation, the denition of what is nondeposition (p < 1) and what is deposition (p = 1) followed by erosion...

Ngày tải lên: 18/06/2014, 22:20

Ngày tải lên: 22/06/2014, 16:20

Ngày tải lên: 27/06/2014, 16:20

Ngày tải lên: 06/07/2014, 06:44

Ngày tải lên: 06/07/2014, 09:29

Ngày tải lên: 28/07/2014, 18:21

Ngày tải lên: 28/07/2014, 18:21

Ngày tải lên: 08/08/2014, 10:23