In the following, some selected terms relevant to Routing (Banerjee 2004, Cisco Systems Inc. 2008).
| Routing Term |
Definition |
| Traffic Multiplication Effect (TME) |
This refers to multiplication of the same copy of data by way of replication redundancy and circulation. |
| Node Bypass / Route-around |
Interior Gateway Routing Protocol. IGP developed by Cisco to address the issues associated with routing in large, heterogeneous networks (Cisco Systems, Inc. 2001). |
| Network Layer Data Unit / Packet Die-out |
This refers to the state of termination / death / lifetime expiry of a packet. |
| Routing Metrics |
A metric is a value given to a route with regards to how good it is. One of the most basic metrics if hop count. This is a simple measure of how many routers a packet must pass through to get to its destination. |
| Principle of Optimality |
If a node B falls along the optimal route between node A and node E, then the optimal route from node B to node E also falls along the same path. |
| Sink Tree |
The optimal routes between any number of given Source nodes and a certain Destination node invariably form a tree that might be seen as starting at the Destination node and ending at the Source node. This tree is called a Sink Tree. |
