You might try reading the PDF found at:
http://www.thinkmind.org/download.php?articleid=sysmea_v3_n34_2010_5
This will probably give you the information you seek.
BGP typically never converges, the internet is too big for changes to be communicated fast enough.
Routing Information Protocol or RIP is a routing protocol that has the poorest converging time.
It is typical for older routing protocols of the "distance vector" type, such as RIP, or IGRP, to send out their routing tables regularly to neighbors. By default, RIP does this every 30 seconds, while IGRP does it every 90 seconds.
Dynamic routing is a networking technique that provides optimal data routing. Unlike static routing, dynamic routing enables routers to select paths according to real-time logical network layout changes. In dynamic routing, the routing protocol operating on the router is responsible for the creation, maintenance and updating of the dynamic routing table. In static routing, all these jobs are manually done by the system administrator. Dynamic routing uses multiple algorithms and protocols. The most popular are Routing Information Protocol (RIP) and Open Shortest Path First (OSPF).
Basically your convergence time is the time while your devices are learning about each other (Could be due to a problem, or a new network). So the higher the convergence time, the longer your network isn't functioning.So with a very low convergence time network a problem in the network can be solved while only losing a few pings.
They forward only changes to individual routes instead of forwarding entire routing tables., taking up less band and time. Joseph G.
Precambrian time.
televisions,telephones,buses,
corporate convergence
Precambrian
Because dynamic routing saves a lot of time.
the time it takes for a router to recognize a best path in the event of a change or network outage.
Time and space convergence
The 'hello interval' is the time between hello packets, set in seconds as a parameter between two numbers, in OSPF routing timer protocols. The hello interval is the contacting-hello exchange between point A and Point B in computing, where a message is sent via an interface to a website or other computer point and returned to the user. Read about configuring routing timers for 'hello interval' and 'dead interval'.