6.2 Classification of Routing Architectures

Algorithm-based routing architectures may be broadly divided into two classes, namely, static routing architectures and dynamic routing architectures. Major entries belonging to both of these classes include (Banerjee 2004):

Packet flooding

Random routing

Shortest path routing

Flow-based routing

Distance vector routing

Link state routing

Organization-based routing architectures could have its genesis in the organization and functionality-based classification. Thus, these Routing Architectures could be broadly divided into the following categories, each of which could have optimality requirement (Banerjee 2004):

Hierarchical routing

Directory routing

Broadcast routing

Multicast routing

6.2 Classification of Routing Architectures

Policy-based routing architectures are classified based on policies leading to the following classes (Banerjee 2004):

Policy-based QoS routing architectures

Policy-based security routing architectures

Policy-based hierarchical routing architectures

Policy-based session routing architectures