**i' am using php, but the concept can use in any programming language.
*understanding programming in procedural is required.
CLASS and OBJECT.
like the picture above (click pict), we made class and object (using command "class and new").
"class is blueprint" and with blueprint we can made objects, is like house plan can make real home/house.
PROPERTY AND METHOD.
static routing is relative simple..where is the connected network and where is the remote network, next set up dst-address and gateway in the routers... if working ...finish. But it's not that simple.
1. Routing Component:
- RIB ( Routing Information Base ) / Routing Table
- FIB ( Forwarding Information Base ) / Forwarding Table
- RIB (Routing Table) contains route data to a specific network.
- RIB (Routing Table) contains metric(value/priority) from each route.
- RIB (Routing Table) made from :
- All route from dynamic routing protocol
- All route from connected network
- All route from static route.
Example: Mikrotik Routing Table in Winbox
2. Administrative Distance:
-Used for finding the best path, when there is more than one routing protocol to same spesific destination.
-Value distance is 0 - 255 | distance = 255 is rejected.
- The Smallest distance is prioritized.
The purpose of load balancing, at it simplest : minimizing overload traffic in a path/link.
List of load balancing type/algorithm :
1. Per packet load balancing
2. Per connection load balancing
3. Per address-pair load balancing
4. Custom load balancing
1. PER PACKET LOAD BALANCING.
The packets from one session will be split and forward to multiple path.
Example: packets from one session from ip address 192.168.1.1/24 to www.youtube.com will be split and forward by router to internet ISP1(universal) 101.0.100.254/30 - ISP2 (biznet) 210.0.210.254/30)
because packet is forwarding by router to different ISP, delays between one and other packet is happened. No matter how fast your Internet connection will slow down.
2. PER CONNECTION LOAD BALANCING.
The packets from one session, forward to one path/link only (the packets not splited)
Example: packets from one session (first session) from ip address 192.168.1.1/24 to
www.youtube.com, forwarded to one path only by router (ISP1 universal)
Example: packets from one session (second session) from ip address 192.168.1.1/24 to
www.youtube.com, forwarded to one path only by router (ISP2 biznet)
2. PER ADDRESS PAIR LOAD BALANCING.
This lab requires :
-Simulation/ Emulator Software GNS3
-Oracle VM VirtualBox
-And Juniper Junos Olive Image
( you can search it on google or copy this link (download and how to install) "https://www.youtube.com/watch?v=14uMxKgos9I")
Recomended hardware requirments:
-CPU: 4 Cores Intel or AMD High end Procesors.
-RAM: 8GB DDR3/4
-Storage: SSD >128GB
-OS: Windows 10 Pro.
I. STATIC ROUTING SINGLE HOP AND MULTI HOP
I.1 - Static route single hop:
the objectif : R1 can ping IP Loopback R2 and vice versa.
First... we must configure the IP Address.
# Interface Configuration in R1
set interface lo0.0 family inet address 1.1.1.1/32
set interface em0.0 family inet address 12.12.12.1/24
# Interface Configuration in R2
set interface lo0.0 family inet address 2.2.2.2/32
set interface em0.0 family inet address 12.12.12.2/24
Second... we configure static route in R1 and R2, Because R2 is edge router, we configure R2 using default route.
# static route configuration in R1
set routing-options static route 2.2.2.2/32 next-hop 12.12.12.2
#static route configuration in R2
set routing-options static route 0.0.0.0/0 next-hop 12.12.12.1
Can use any linux distribution, I use Ubuntu Server 22.04 (Jammy Jellyfish)
okay let's go
1. File Hierarchy
Like the picture above, u can practice it. in the "/" contain some folders (blue color) and file(white color).
2. Navigating File
-Absolute Path : always starts with "/" (enter the root directory first)
example :
-Relative Path : not necessarily start with "/" (just customize with path location)
example :
*pwd : prints the full name (the full path) of current/working directory
ls: ls is a Linux shell command that lists directory contents of files and directories
example:
3. Creating File & Directory
touch : used to create a new empty file and to change the timestamps of existing file
example :
mkdir : used in Linux to create a new directory/folder
example:
4. File Manangement
cd: used to change the current directory of the terminal
example:
