Network Design and Implementation Report: VLAN, Redundancy, HSRP

This report details the implementation of VLANs, redundancy, and HSRP to optimize network performance and reliability. The current network design suffers from broadcast domain issues, causing slow speeds and high latency. To address this, the solution proposes implementing VLANs to segment the network into three broadcast domains: Commercial, HR, and Engineering. The report outlines the VLAN configuration, including IP address assignments. Furthermore, it addresses the lack of redundancy in the existing network by implementing a redundant Layer-3 switch and a ring network architecture. Spanning Tree Protocol is configured for link redundancy, and HSRP is implemented for device redundancy. The report includes sample configurations for VLAN, Spanning Tree, and HSRP, along with a bibliography referencing the Cisco Official Certification Guide.

Site “XXX” Challenges and Implementation
Site details and Challenges
 Reduce Broadcast domain using Vlan and Implementation of redundancy in LAN.
Currently network design is in one broadcast domain, so there is speed slow issues and high
latency in network.
Current network design has no redundancy due to this, if one device or one link goes down then
all end user not able to access network.
Site Solution and Technologies
1) To reduce broadcast domain, need to implement vlan in LAN. Currently there is one vlan
which means one broadcast domain. So I am going to create 3 vlan for this scenario, one
broadcast domain is going to break in 3 broadcast domain, so network perform will be
efficient. Vlan details as mention below.
2) Currently, there is no redundancy in network in terms of devices and links. There is one
Layer-3 switch as backbone of network and there is one link use for connectivity between
Layer-3 switch and Layer-2 switches. I am going to implement redundant Layer-3 switch and
ring network architecture. Need to configure Spanning tree for redundancy of Links and
HSRP for redundancy of Devices.
Vlan No. Vlan Assign to IP address subnet
1 Commerical 192.168.1.0/24
2 HR 192.168.2.0/24
3 Eggineering 192.168.3.0/24

Sample Configuration
1) VLAN configuration
switch(config)#vlan 2
switch(config-vlan)#name HR
2) Redundancy
a. Spanning tree configuration
switch(config)#spanning-tree mode rapid-pvst
switch(config)#spanning-tree portfast default
switch(config)#spanning-tree portfast bpduguard default
switch(config)#spanning-tree extend system-id
b. HSRP Configuration
Primary-SW(config)interface vlan 1
Primary-SW(config-if)ip address 192.168.1.2 255.255.255.0
Primary-SW(config-if)standby ip 192.168.1.1
Primary-SW(config-if)standby priority 110
Primary-SW(config-if)standby preempt
Secondary-SW(config)interface vlan 1
Secondary-SW(config)ip address 192.168..1.3 255.255.255.0
Secondary-SW(config)standby ip 192.168.1.1
Bibliography
Cisco Official Certification Guide – CCNA Routing and Switching by Wendell Odom