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WAN - 01 Recap on Networks - Coggle Diagram
WAN - 01
Recap on Networks
Layered Reference Models
OSI
Physical
Data Link
Network
Transport
Session
Presentation
Application
TCP / IP
Network Access
Internet
Transport
Application
LANs
Ethernet
IEE 802.3
Token Ring
Token Bus
WLAN
Switching
Collision Domains
Full-deuplex
Frame Forwading
Store-and-Forward
Cut-through
Fast-forward
Lowest Latency
Immediately forward after reading the destination address
Fragment-free
Waits for the first 64 bytes.
Most errors & collisions occures during
the first 64 bytes.
Routing
Methods
Static Routing
Default Route
Dynamic Routing
Dynamic Protocols
IGP
Distance Vector
RIP
v2
v3
IGRP
EIGRP
Link-State
OSPF
IS-IS
EGP
BGP
IPv4
Addressing
Classless
Network Address
Broadcast Address
Host Addresses
1st
Last
Subnet Mask
Classfull
Ranges
Class C
192 - 223
/24
Class D
224 - 239
Class E
240 to 255
Class A
/8
0 - 127
Class B
/16
128 - 191
Private Range
A
10.0.0.0 - 10.255.255.255
B
172.16.0.0 - 172.31.255.255
C
192.168.0.0 - 192.168.25.255
Problems
Too large
A
B
Too Small
C
Solutions
Classless Addressing
(Subnets)
IPv6
NAT
Static
Private IP to Public IP
Dynamic
Multiple Private IPs to Multiple Public IPs
PAT
Public IP & port to Private IP