IPv4 Network Ranges

Example 192.168.0.0/30

number of IP addresses = 2 ^ (32–30)

which is 2 ^ 2 = 4

The IP addresses are thus 192.168.0.0, 192.168.0.1, 192.168.0.2 and 192.168.0.3

Example 192.168.0.0/29

number of IP addresses = 2 ^ (32–29)

which is 2 ^ 3 = 8

The IP addresses are thus 192.168.0.0, 192.168.0.1, 192.168.0.2 … 192.168.0.7

Example 192.168.0.1/28

number of IP address = 2 ^ (32–28)

which is 2 ^ 4 = 16

The IP addresses are thus 192.168.0.0, 192.168.0.1, 192.168.0.2 … 192.168.0.15

Spring RestTemplate and WebClient Improvements

 Improvements for reactive WebClient

https://medium.com/@dixitsatish34/how-to-improve-webclient-response-time-in-spring-boot-3c0c898f06b4

Improvements for blocking RestTemplate

https://medium.com/@nitinvohra/how-to-improve-performance-of-spring-resttemplate-6af37e0a0f33

RestClient vs. WebClient vs RestTemplate

https://docs.spring.io/spring-framework/reference/web/webmvc-client.html

1. RestTemplate (Spring Framework 3+) Blocking/Synchronous on Servlet Stack (org.springframework.boot:spring-boot-starter-web)

2. WebClient (Spring Framework 5+) Reactive/Asynchronous on WebFlux (org.springframework.boot:spring-boot-starter-webflux)

3. RestClient (Spring Framework 6.1+) Blocking/Synchronous on Servlet Stack (org.springframework.boot:spring-boot-starter-web)

https://digma.ai/restclient-vs-webclient-vs-resttemplate/