CCNA ICND 1

Repeater

Building Hub

First Name/Address Table

Person’s Name Computer Name Network AddressFred Flintstone Fred 0001Wilma Flintstone Wilma 0002Barney Rubble BarneyR 0011Betty Rubble Betty 0012Barney Fife BarneyF 0022Pebbles Flintstone Netguru 0030Bamm-Bamm Rubble Electrical-guy 0040

OSI Layers

ApplicationPresentation

SessionTransportNetworkData LinkPhysical

Application

Transport

Internet

Network Access

HTTP, SMTPPOP3, Voip

IPX

SPX

MAC PROTOCOLS

OSI TCP/IP NetWare

Original Ethernet Standard

CSMA/CD

■ A device that wants to send a frame waits until the LAN is silent—in other words, no frames are currently being sent—before attempting to send an electrical signal.

■ If a collision still occurs, the devices that caused the collision wait a random amount of time and then try again.

UTP Cabling

LAN AddressingLAN Addressing Term or Feature Description

MAC Media Access Control. 802.3 (Ethernet) defines the MACsublayer of IEEE Ethernet.

Ethernet address, NIC address, LAN addressOther names often used instead of MAC address. These terms describe the 6-byte address of the LAN interface card.

Burned-in address The 6-byte address assigned by the vendor making the card.Unicast address A term for a MAC that represents a single LAN interface.

Broadcast address An address that means “all devices that reside on this LANright now.”

Multicast address On Ethernet, a multicast address implies some subset of all devices currently on the Ethernet LAN.

Serial Cabling Options

Frame Relay Components

Point to point Lease line

IP Subnetting

Class A Class B Class CFirst Octet Range 1 to 126 128 to 191 192 to 223

Valid Network Numbers 1.0.0.0 to 126.0.0.0

128.0.0.0 to 191.255.0.0

192.0.0.0 to 223.255.255.0

Number of Networks in This Class 2 7 – 2 2 14 2 21

Number of Hosts Per Network 2 24 – 2 2 16 – 2 2 8 – 2

Size of Network Part of Address (Bytes) 1 2 3

Size of Host Part of Address (Bytes) 3 2 1

Private IP Range

Private IP Networks Class of Networks Number of Networks10.0.0.0 through 10.0.0.0 A 1172.16.0.0 through 172.31.0.0 B 16192.168.0.0 through 192.168.255.0 C 256

Subnetting

TCP Ack without Error

TCP Ack With Error

TCP Windowing

TCP Connection Establishment

TCP Connection Termination

Multiple HTTP GET

Connected and Static

IOS verificationAlbuquerque#show running-config interface FastEthernet0/0ip address 10.1.1.251 255.255.255.0!interface Serial 0/0/1ip address 10.1.128.251 255.255.255.0!interface Serial 0/1/0ip address 10.1.130.251 255.255.255.0

Albuquerque#show ip interface briefInterface IP-Address OK? Method Status ProtocolFastEthernet0/0 10.1.1.251 YES manual up upFastEthernet0/1 unassigned YES manual administratively down downSerial0/0/0 unassigned YES NVRAM administratively down down Serial0/0/1 10.1.128.251 YES NVRAM up upSerial0/1/0 10.1.130.251 YES NVRAM up upSerial0/1/1 unassigned YES NVRAM administratively down down

RIP

Routing Protocol Practice

Analog Voice over Digital PSTN

Modem over PSTN

DSL Connection