THis is for cloud material

1. AWS Load Balancers
Team Member:
DHRUV PRAJAPATI (D23CE181)
HENIM PANDYA(D23CE184)
MAHAMADHUSEN KURESHI (D23CE182)

2. What is an AWS Load Balancer?
• An AWS Load Balancer Is A Service That Automatically Distributes Incoming
Application Traffic Across Multiple Targets, Such As Amazon EC2 Instances,
Containers, Or IP Addresses. It Acts As A Reverse Proxy And Helps Ensure Your
Application Is Highly Available And Scalable.
Why use them?
• Handle Traffic Spikes, Improve Security, And Simplify Scaling.

3. Key Benefits of AWS Load
Balancers
• High Availability: Distribute traffic across Availability Zones.
• Security: SSL/TLS termination, user authentication.
• Scalability: Automatically adjust to traffic changes.
• Hybrid Load Balancing: Migrate resources to the cloud seamlessly.
• Traffic Management: HTTP/HTTPS/TCP/UDP forwarding rules.

4. Types of Load Balancers
1 Application Load Balancer (ALB)
2 Network Load Balancer (NLB)
3 Classic Load Balancer (CLB)

5. Application Load Balancer (ALB)
Layer 7
Operates on application layer,
supporting HTTP/HTTPS.
Routing & Security
Supports path-based, host-based,
and security-based routing.
Modern Features
Supports WebSocket, HTTP/2, and
other modern protocols.
• Use Case: Modern apps with microservices or containers.

6. Application Load Balancer (ALB)

7. Network Load Balancer (NLB)
Layer 4
Operates on transport layer,
supporting TCP/UDP.
High Performance
Handles millions of requests per
second with low latency.
Advanced Features
Supports connection draining and
preserves client IP addresses.
•Use Case: Real-time apps (gaming, financial
systems).

9. Classic Load Balancer (CLB)
• Use Case: Legacy EC2 instances on EC2-Classic network.
• Limitations:
• No host/path-based routing.
• Less efficient for modern microservices.
• Recommendation: Use ALB or NLB for new applications.

10. 1.Choose A Load Balancer Type
1.Open AWS EC2 Console Create Load Balancer Select ALB.
→ →
2.Basic Configuration
1.Name, VPC, Availability Zones, Public Subnets.
2.Default Listener: Http On Port 80.
3.Security Group Setup
1.Create A New Security Group For ALB.
2.Allow Inbound Traffic On Port 80.
• How To Configure An ALB

11. •Steps:
1.Create a target group (e.g., EC2 instances).
2.Set health checks (default: HTTP on port 80).
3.Register EC2 instances with the target group.
• Configure Target Group

13. Test Your Load Balancer
• Steps:
• Copy Alb DNS Name.
• Access Via A Browser To Verify Traffic Routing.
• Troubleshooting:
• Check Instance Health Status In The Target Group.
• Ensure Security Groups Allow Inbound Traffic.

15. Load Balancer Use Cases
Load balancers are essential for various applications and services.
1 Web Applications
Distribute web traffic across
multiple instances for
increased availability and
performance.
2 Microservices
Enable fault tolerance and
scalability for distributed
systems.
3 Gaming Services
Manage player connections and ensure smooth gameplay.

16. AWS Load Balancer Pricing
Pay-as-you-go
Pricing based on usage and capacity.
LCU
Based on Load Balancer Capacity
Units (LCU) for active listeners.
Traffic Costs
Charges based on the amount of
traffic processed.

17. Demo:-

21. • Official AWS Documentation
Getting Started With Elastic Load Balancing
• Medium Articles
AWS Elastic Load Balancer: Overview And Typ
es
• GeeksforGeeks Tutorial
Create and Configure: Mastering AWS Network Load Balancer
References

22. Do You Have Any Question …..?