1
Q
What key points should be considered for VPCs?
A
- Size - because this limits the use and how many services will be used –> CIDR range
- Are there any networks that we can’t use?
- Consider not overlapping the CIDR range with other cloud environments - VPCs, cloud, on-premises, partners, vendors…
- Try to predict future uses
- Try to predict the VPC structure - tiers and resilience (availability)
- VPC min /28 (16 IP)
- VPC max /16 (65456 IPs)
- Avoid common range 10.0 or 10.1, include up to 10.10
2
Q
What defines how big the VPC will be?
A
The VPC CIDR range.
3
Q
Why is it a good practice trying not to overlap IP ranges even within private networks?
A
Because it will make more difficult the communication between networks.
4
Q
What is the minimum size for a VPC?
A
/28 (16 IP)
5
Q
What is the maximum size for a VPC?
A
/16 (65456 IPs)
6
Q
What is the main recommendation when designing a VPC?
A
Try to split each subnet into tiers (web, application, db, spare).
