Information Technology Network Design

Running head: IT NETWORK DESIGNING
IT NETWORK DESIGNING
Name of the Student:
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1IT NETWORK DESIGNING
1. Redundancy issue at distribution and core layer:
Distribution layer:
While choosing the optimal power facility, the data managers should be considered with
the different possibilities f optimal solutions.
During the design of the configuration of electrical power distribution, data managers
should considered the present and future demand of the power supply.
The right power distribution load balance should be created before the facility so that it
can help to run a data centers efficiently in a cost efficient way.
Core layer:
The fully meshed topology at the core layer does not provide full convergence in case if a
link or node fails. Peer adjusting issue is present in fully meshed design (Cheng et al.,2015).
Configuration and scaling of routing is complex. The cost of changes in the network increases
making the network more complex.
Solutions for layer 2 and layer 3 redundancy:
The layer 2 redundancy can be achieved by the Hot Standup Group protocol or Virtual
Router redundancy protocol setup (Dunbar et al.,2015). The distribution layer switches has to
assign with individual IP addresses. The two VLANs should be organized in to Standby Group
and will generate virtual IP and virtual MAC address. One of the distribution switch will be
active for taking the responses and the other switch will be in waiting for the activation.

2IT NETWORK DESIGNING
Aggregation switch can be presented by a router(layer 3) and a switch as the primary
component. The whole foundation is supported by a firewall load balancer and SSL module and
IDS module (Akela et al.,2017). The communication between routing and switching component
is done through service module.
2.Difference between layer 3 switches and routers:
Characteristics Layer 3 switch router
Subnet definition Layer 2 switch domain port
Forwarding architecture hardware software
RMON support yes no
Price low high
Forwarding performance high low
Policy performance High low
WAN support no yes
3.Routing capabilities and limitations of layer 3 switch:
 Layer 3 switch connects the devices with the same IP subnet or virtual LAN and
the performance of connecting device is done at wire speed.
 Layer 3 switches acts as a router without WAN connectivity. The routing is done
by the IP routing intelligence built on it. It supports protocols like OSPF and RIP.
Limitations: