Routing Protocols
To determine the
best path
, routers
communicate with each other through
routing
protocols
In addition to its ability to find the best path, a
routing protocol can be characterized according
to its convergence time and bandwidth overhead
n
Convergence time
The time it takes for a router to recognize a best path in the
event of a change or outage
n
Bandwidth overhead
Burden placed on an underlying network to support the
routing protocol