Cisco hierarchical model layers
Cisco has
defined a hierarchical model which simplifies the task of building a reliable,
scalable and expensive hierarchical internetwork because rather than focusing
on packet construction, it focuses on the three functional areas or layer, of
your network.
3 Type Cisco hierarchical model layers
1. Cisco hierarchical core layer
Core
Layer:-This layer is
considered the backbone of the network and includes the high-end switch and
high-end speed cables such as fiber cables. This layer of the network does not
route traffic at the LAN. In addition, no packet manipulation is done by the device
in this layer. Rather this layer is concerned with speed and ensures reliable
delivery of packets.
2. Cisco hierarchical distribution layer
Distribution
Layer:- This layer
is also called the Workgroup layer. This layer includes LAN-based routers and
layer 3 switches. This layer ensures that packets are properly routed between
subnets and VLANs in your enterprise.
3. Cisco hierarchical access layer
Access Layer:- This layer includes hubs and switches. This layer is called the detection layer because it focuses on connecting client nodes, such as workstations to the network. This layer ensures that packets are delivered to end-user computers.
Reviewed by YourOnlineZone
on
16 May
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