... 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 Da...
... 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...
... 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 So...
... 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...
... 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...
... 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 M...
... 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 d...
... 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 sp...
... Table of Content OSI Layer for Point-to-Point WANs OSI Layer for Point-to-Point WANs Packet-switching service OSI Layer for Point-to-Point WANs Overview WAN connections Point-to-point WAN ... over optical links 18 SONET Link Speeds Optical Carrier Speed OC-1 52Mbps OC-3 155Mbps OC-12 622Mbps OC-48 2.4Gbps OC-192 9.6Gbps OC-768 40Gbps 19 ATM Asynchronous Transfer Mode (ATM) provide...
... access- list access- list- number { permit || deny } {test-conditions} access- list access- list- number { permit deny } {test-conditions} Defines an ACL Alert an ACL use no access- list access- list- number ... (config)# access- list access- list- number access- list access- list- number {deny | permit} source [source-wildcard] [log] {deny | permit} source [sourc...
... 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 Catal...
... 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 pro...