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Explain The typical three-layer hierarchical internetworking model?
nisha 12-January-2008 01:53:00 PM


There are three layers to the Cisco hierarchical model. The core (backbone) layer provides ... Controls local end user access to internetwork resources. ...
more details please visit:-
netcert.tripod.com/ccna/internetworking/hierarch.html - 7k -
Posted by waqasahmad

1. Core layer: Core layer is responsible to provide an optimal and reliable transport structure. The core layer is the backbone network of the entire internetwork and may include LAN and WAN backbones. Core layer usually consists of fully redundant paths with technologies such as FDDI, Fast Ethernet, and/ or ATM.
2. Distribution layer: Distribution layer is responsible to provide access to the internetwork as well as to the servers. Distribution layer sits between the Core layer and the Access layer. The policies such as ACLs are implemented at the distribution layer. Distribution layer is also known as workgroup layer.
3. Access layer, provides the users, access to the resources on internetwork.
Posted by priyadarshan

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