-
1Module 10
Planning and CablingNetworks
-
2Objectives
LAN Marking the Physical Connection Device Interconnections Developing an Addressing Scheme Calculating the Subnets Device Interconnections
-
3LAN Marking the Physical Connection
-
Choosing Appropriate LAN Device
-
Choosing Appropriate LAN Device
-
6Device Selection FactorsFactors to Consider in Choosing a Device
-
7Device Selection FactorsFactors Determining LAN Switch Selection
-
8Device Selection FactorsFactors Determining LAN Switch Selection Port Speeds, Types and Expandability
-
9Device Selection Factors
Cisco Routers
Each series of Cisco router providesexpandability, support for multiple media types,and various system features and services.
-
10
Device Interconnections
-
11
LAN and WAN Getting Connected
LAN Cabling Areas
-
12
LAN and WAN Getting ConnectedType of Device Interconnection
-
13
Marking LAN Connections
RJ45 T568A & T568B Connections
-
14
Marking LAN ConnectionsStraight-Through Cable have the same
termination at each end T568A or T568B
Two types of UTP interfaces: MDI and MDIX.
The MDI (media-dependent interface): Uses the normal Ethernet pinout. Pins 1
and 2 are used for transmitting and pins 3 and 6 are used for receiving.
Devices such as computers, servers, or routers will have MDI connections.
The MDIX (media-dependent interface, crossover): The devices that provide LAN
connectivity usually hubs or switches Swap the transmit pairs internally. This
swapping allows the end devices to be connected to the hub or switch using a straightthrough cable.
Straight-Through Cable have the sametermination at each end T568A or T568B
-
15
Marking LAN Connections
Crossover Cables have a T568A termination at one end and a T568B termination at the other end
-
16
Marking LAN ConnectionsIdentify the correct UTP cable type and likely category toconnect different intermediate and end device in a LAN
Many devices allow the UTP Ethernet port to be set to MDI or MDIX. This can be done in one of three ways: Ports may have a
mechanism that electrically swaps the transmit and receive pairs
As part of the configuration
Many newer devices have an automatic crossover feature
-
17
Marking WAN Connections
Type of WAN Connections
-
18
Marking WAN Connections
Type of WAN Connections - Serial
-
19
Marking WAN Connections
Type of WAN Connections - DSL
-
20
Marking WAN Connections
Data Communications Equipment (DCE) - A device that supplies the clocking services to another device. Typically, this device is at the WAN access provider end of the link.
Data Circuit-Terminal Equipment (DTE) - A device that receives clocking services from another device and adjusts accordingly. Typically, this device is at the WAN customer or user end of the link.
-
21
Marking WAN Connections
Serial WAN Connections in the Lab
-
22
Developing an Addressing Scheme
-
23
How Many Hosts in the Network ?
Determining the Number of Hosts in the NetworkInclude these devices in the count:
-
24
Designing the Address Standard for our Internetwork
General users = .64 - .127Special users = .8 - .15 (Network Administrator)Network resources = .224 - .239Router LAN interfaces = .250 - .254Management access = .192 - .207 Router WAN links = .1 - .2
-
25
Calculating the Subnets
-
26
Introduction to Subnetting
Subnetting a network means to use the subnet mask to divide the network and break a large network up into smaller, more efficient and manageable segments, or subnets.
Subnet addresses include the network portion, plus a subnet field and a host field.
To create a subnet address, a network administrator borrows bits from the host field and designates them as the subnet field
-
27
Classes of Network IP addresses
-
28
Subdividing an /24 network address
Number of subnets = 2n = 23 =8 with n is number of bits that are borrowed.
Number of hosts per subnet = 2m 2 = 28-3 - 2 = 30 with m is number of remaining bits.
-
29
Writing down the subnets
Determine the network address of subnets from 3 borrowed bits from the host portion (the last byte): 1st subnet: .00000000 192.168.10.0
2nd subnet: .00100000 192.168.10.32
3rd subnet: .01000000 192.168.10.64
4th subnet: .01100000 192.168.10.96
5th subnet: .10000000 192.168.10.128
6th subnet: .10100000 192.168.10.160
7th subnet: .11000000 192.168.10.192
8th subnet: .11100000 192.168.10.224
-
30
Writing down the subnets
Determine the broadcast address of subnets: 1st subnet: .00011111 192.168.10.31 2nd subnet: .00111111 192.168.10.63 3rd subnet: .01011111 192.168.10.95 4th subnet: .01111111 192.168.10.127 5th subnet: .10011111 192.168.10.159 6th subnet: .10111111 192.168.10.191 7th subnet: .11011111 192.168.10.223 8th subnet: .11111111 192.168.10.255
-
31
How Many Network ?
-
32
Calculating Addresses
Network Topology
Given IP Address:172.16.0.0/21
-
33
Calculating Addresses
Calculating Address Ranges for Subnets
-
34
Good luck with this module!
