What is the maximum number of forwarding rules for ILBs per VPC network?

The maximum number of forwarding rules for Internal Load Balancers (ILBs) per Virtual Private Cloud (VPC) network is indeed 70. This limit is set by Google Cloud to ensure efficient resource management and performance within the network environment.

Internal Load Balancers are used to distribute traffic across various instances within a private network, providing a way to improve availability and reliability. The constraint of 70 forwarding rules per VPC network helps maintain optimal performance and management of network resources, ensuring that the load balancing is effective without overwhelming the system.

Understanding this limitation is crucial for network engineers and architects when designing scalable and efficient network solutions on Google Cloud. It is important to plan your architecture accordingly, considering this limit when designing internal load balancing strategies within your VPC networks.