Tài liệu giảng dạy CCNA - module 04 chapter 13-Cisco LAN Switching Basics

Tài liệu giảng dạy CCNA - module 04 chapter 14-LAN Switching Review and Configuring Cisco 2950 LAN Switches

... Point-to-point only • Attached to dedicated switched port • Requires full-duplex support on both ends • Collision free • Collision detect circuit disabled 11 CONFIGURING CISCO 2950 LAN SWITCHES ... Switch(config)#mac-address-table static FastEthernet vlan  To remove this entry use the no form of the command:  Switch(config)#no mac-address-table ... show commands to verify Catalyst 2950 switch configuration and operations LAN SWITCHING REVIEW Three Switch Functions  Address learning  Forward/filter decision  Loop avoidance How Switches...

Tài liệu giảng dạy CCNA - module 04 chapter 15-Spanning Tree Protocol

... stop the loop Solution: Spanning -Tree Protocol x Block Provides a loop free redundant network topology by placing certain ports in the blocking state Spanning -Tree Operations • One root bridge ... Spanning -Tree Protocol Root Bridge Selection Switch X Default priority 32768 (8000 hex) MAC 0c0011111111 BPDU Switch Y Default priority 32768 (8000 hex) MAC 0c0022222222 BPDU = Bridge protocol ... Nondesignated port (B) Spanning -Tree Protocol Path Cost Link Speed Cost (reratify IEEE spec) Cost (previous IEEE spec) -1 0 Gbps 1 Gbps 100 Mbps 19...

Tài liệu giảng dạy CCNA - module 04 chapter 16-Virtual LANs and Trunking

... Compared  Both ISL and 802.1q provide trunking  Both allow the use of a 12-bit-long VLAN ID field So, either works fine and supports the same number of VLANs  Both support a separate instance ...    Maximum number of VLANs is switch-dependent Catalyst 1900 supports 64 VLANs with a separate spanning tree per VLAN VLAN1 is One of the factory default VLANs CDP and VTP advertisements are ... at 0 0-0 0-0 000 00:00:00 20 Defining a Trunk wg_sw_a(config-if)# trunk [on | off | desirable | auto | nonegotiate] • On = Set trunk on and negotiate with other side • Off = Set trunk off and negotiate...

Tài liệu giảng dạy CCNA - module 04 chapter 13-Cisco LAN Switching Basics

... and Fragment-free switching 3 LAN Segmentation LAN Segmentation Isolate traffic between segment achieve more bandwidth LAN Segmentation With Bridges LAN Segmentation With Routers LAN Segmentation ... the LAN not behave any differently in the presence or absence of transparent bridges 2 LAN Switching Switch operation      A multi port bridge Micro-segment Support full duplex Hardware switching ... maintains a Content-Addressable Memory (CAM) table Half-duplex Networks Full-duplex Transmitting 10 or 100 Mbps 10 or 100 Mbps Full-Duplex 10 or 100 Mbps 10 or 100 Mbps  Full-duplex Ethernet...

Tài liệu giảng dạy CCNA - module 01 chapter 04 - LAN Cabling, Standards, and Topologies

... but others not Cabling and Connectors STP Cable 10 ScTP Cable 11 UTP Cable 12 RJ-45 Plug 13 Coaxial Cable 14 10BASE-2 AND 10BASE-5 CONNECTORS 15 Multimode Fiber 16 Single-mode Fiber 17 Other Optical ... mold as an RJ-45 connector, which makes it easy to install 19 WIRELESS COMMUNICATION 20 Wireless LAN Organizations And Standards  A key technology contained within the 802.11 standard is Direct ... ring for failover  This dual-ring topology was used with the now outdated Token Ring and Fiber Distributed Data Interface (FDDI) LANs Network Topology: Full mesh and Partial mesh • Each host...

Tài liệu giảng dạy CCNA - module 01 chapter 01 - Introduction to Computer Networking

... ring topology connects one host to the next and the last host to the first • This creates a physical ring of cable Network Topology: Physical layout A star topology Connects all cables to a central ... hubs and/or switches together the system is linked to a computer that controls the traffic on the topology Network Topology: Physical layout • Each host has its own connections to all other hosts ... has multiple paths to any one location, it does not adopt the full mesh topology Network Topology: Logical layout Network Protocols  Protocol suites are collections of protocols that enable...

Tài liệu giảng dạy CCNA - module 01 chapter 02 -The TCP IP and OSI Networking Models

... Table of Content The TCP/ IP protocol architecture The OSI model THE TCP/ IP PROTOCOL ARCHITECTURE The TCP/ IP Application Layer  TCP/ IP application layer protocols provide services ... Please Reliably Send This, Mr TCP! TCP Web client HTTP Get HTTP Get TCP Acknowledgment TCP HTTP Ok Web page TCP Acknowledgement Summary: Same-Layer and Adjacent-Layer Interactions Source Destination ... comparable transport and network layers  Both models need to be known by networking professionals  Both assume packets are switched 16 Comparing TCP/ IP with OSI (cont.) Differences:  TCP/ IP combines...

Tài liệu giảng dạy CCNA - module 01 chapter 03 - Data Link Layer Fundamentals

... manufacturer or vendor Using MAC addresses Data A D Data A D Data A D Data A D Destination Address Source Address Data Link Function 3: Error Detection  Most data- link protocols include a frame check ... burned-in addresses (BIAs) because they are burned into read-only memory (ROM) and are copied into random-access memory (RAM) when the NIC initializes  0000.0c12.3456 or 0 0-0 0-0 c-1 2-3 4-5 6 MAC ... Features for OSI Layer Typical LAN Features for OSI Layer Early Ethernet Standards Recent Ethernet Standards Typical LAN Features for OSI Layer  The OSI physical layer, or Layer 1, defines the...

Tài liệu giảng dạy CCNA - module 01 chapter 05 - Fundamentals of IP

... 11000000 N 1010 10000 N 00 0010 10 00000000 N H 11000000 1010 10000 00 0010 10 N N N 00000000 sN H Class B Network address: 132.10.0.0 100 0010 0 N 100 0010 0 N 00 0010 10 N 00000000 N H 00 0010 10 N 00000000 ... Known IP: IP: Unknown IP Address Unknown IP Address Gateway Gateway IP of server IP of server Filename of Filename of boot file boot file BOOTP server MAC1 – IP1 MAC1 – IP1 MAC2 – IP2 MAC2 – IP2 ... 192.168.10.100/255.255.255.0 (or /24) IP Address 11000000 N 1010 10000 N 00 0010 10 011 0010 0 N H AND operation Default subnet Mask Network address 11111111 11000000 11111111 11111111 1010 10000 00 0010 10 00000000 00000000...

Tài liệu giảng dạy CCNA - module 01 chapter 06 - IP Addressing and Subnetting

... 1010 1100 0 0010 000 0000 0010 1010 0000 Host 255.255.255.192 11111111 11111111 11111111 11000000 Mask 1010 1100 0 0010 000 0000 0010 10000000 Subnet 1010 1100 0 0010 000 0000 0010 1011 1111 Broadcast 1010 1100 ... 192.168.5.121: 11000000 1010 1000 000 0010 1 011 11 001 255.255.255.248: 11111111 11111111 11111111 11111000 Subnet: 11000000 Broadcast: 11000000 1010 1000 000 0010 1 011 11000 1010 1000 000 0010 1 011 11111    ... 1011 1111 Broadcast 1010 1100 0 0010 000 0000 0010 10000 001 First 1010 1100 0 0010 000 0000 0010 1011 1110 Last 28 Addressing Summary Example 172 16 160 1010 1100 0 0010 000 0000 0010 1010 0000 Host 255.255.255.192...

Tài liệu giảng dạy CCNA - module 01 chapter 07 - Fundamentals of TCP and UDP

... sequence numbers and acknowledgments The Transmission Control Protocol TCP: Three way handshaking A B TCP: Window and Acknowledgment TCP: Sliding window and Acknowledgment TCP: Sequence and acknowledgment ... that use UDP include: TFTP, SNMP, DHCP, DNS UDP Header format 68 -7 FC R  UDP is a simple protocol that exchanges datagrams, without acknowledgments or guaranteed delivery TCP and UDP port ... include the following basic services:  Segmentation of upper-layer application data  Establishment of end-to-end operations  Transport of segments from one end host to another end host  Flow...

Tài liệu giảng dạy CCNA - module 06 chapter 19-Remote Access Technologies

... Upload ADSL 1.54 4-8 .192Mbps 1 6-6 40Kbps SDSL 1.54 4-2 .048Mbps 1.54 4-2 .048Mbps HDSL 1.54 4-2 .048Mbps 1.54 4-2 .048Mbps IDSL 144Kbps 144Kbps RADSL 64Kbps-8.192Mbps 1 6-7 68Mbps CDSL 1Mbps 1 6-1 60Kbps 21 Protocols ... rate than modems  B channels are suitable for negotiated Point-to-Point Protocol (PPP) links 14 ISDN channels  ISDN uses out-of-band signaling, the delta (D channel), for call setup and signaling ... Modulated, Frequency Modulated, Phase modulation Point-to-Point Protocol Features with Modems  Most computers today use PPP as the data-link protocol when using modems  PPP supports both synchronous...

Tài liệu giảng dạy CCNA - module 06 chapter 20-Point-to-Point Leased Line Implementation

... Data-Link Protocols for Point-to-Point Leased Lines Authentication Over WAN Links Review of WAN Basics Overview of WAN  The three main categories of WAN options:  Leased point-to-point lines ... Dial lines (also called circuit-switched lines)  Packet-switched networks Physical Components of Point-to-Point Leased Lines TELCO CSU CSU WAN switch CPE CO Demarc CPE WAN switch CO Demarc Data-Link ... CSU CSU WAN switch CPE CO Demarc CPE WAN switch CO Demarc Data-Link Protocols for Point-toPoint Leased Lines The important comparison points between HDLC and PPP Protocol Error Correction Architecte...

Tài liệu giảng dạy CCNA - module 06 chapter 21-ISDN and Dial-on-Demand Routing

... components in an ISDN network • Configure ISDN BRI and legacy dial-on-demand routing (DDR) • Verify DDR operation using show and debug commands 32 ... completion of this chapter, you will be able to perform the following tasks: • Describe the components that make up ISDN connectivity • Configure ISDN BRI and legacy dial-on-demand routing (DDR) • ... Voice, data, video, and special services ISDN Standards Issue Protocol Telephone Network and ISDN ISDN Concepts, Aspects, and Interfaces Switching and Signaling Key Examples E-Series E.163—International...

Tài liệu giảng dạy CCNA - module 06 chapter 22-Frame Relay

... point-to-point ip address 10.17.0.1 255.255.255.0 bandwidth 64 frame -relay interface-dlci 110 ! interface Serial0.3 point-to-point ip address 10.18.0.1 255.255.255.0 bandwidth 64 frame -relay ... frame -relay encapsulation frame -relay bandwidth 64 bandwidth 64 frame -relay lmi-type ansi Inverse ARP • Enabled by default • Does not appear in configuration output Configuring a Static Frame Relay ... Frame Relay Operation (cont.) rame -relay map ip 10.140.1.1 dlci 100(0x64,0x1840), dynamic, broadcast,, status defined, active frame -relay- inarp me map • Clears dynamically created Frame Relay...

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