Wednesday, March 30, 2011

What is classful and classless routing ?


Classful routing : Routing Protocol that do not send subnet mask information when a route update is sent out. All devices in the network must use the same subnet mask.


Eg : RIP V1

Classless routing : Routing that sends subnet mask information in the routing updates. Classless routing allows VLSM (Variable Length Subnet Masking) 


Eg : RIP V2 EIGRP & OSPF.


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