• Hybrid network use a combination of any two or more topologies in such a way that the resulting network does not exhibit one of the standard topologies (e.g., bus,  star,  ring,  etc.) 
  • For example,  a tree network connected to a tree network is still a tree network,  but two star networks connected together exhibit a hybrid network topology. 
  • A hybrid topology is always produced when two different basic network topologies are connected. 
  • Two common example for Hybrid network are: star ring network an data bus network.  

    A Star Bus network Bus network consists of two or more star  topologies connected using a multi strong access unit (MAU) as a centralized hub. 

    A star Bus network consists of two or more star topologies connected using a bus trunk (the bus trunk serves as the network’s backbone). 

    • While grid network have found popularity in high-performance computing applications, some systems have used genetic algorithms to design custom networks that have the fewest possible hops ni between different nodes.  Some of the resulting layouts are nearly incomprehensible,  although they function quite well.