Network Security: Cisco 3750G Redundancy|LinkNewNet

New Products

New Promotion

-50%

C9500-40X-A

$4000 $2000

-29%

C9300-24T-A

$1750 $1250

-31%

DS-C9250I-K9

$1600 $1100

-38%

WS-C2960L-48PQ-LL

$800 $500

-42%

A9K-750W-AC

$600 $350

New Accessories

Network Security: Cisco 3750G Redundancy

Aug 19 , 2022 1720

Status: The network room gateway is a separate cisco 3750G switch. Once the physical device has problems, the entire network will be at risk.

Solution:

First, Cisco 3750G stacking solution

The stacking technology uses a 32G bandwidth stacking cable provided by Cisco to connect several cisco3750G switches in series to implement unified management of several switches. One of them is the master and the rest is the slave. Once the master has problems, the remaining switches. Will re-elect a master. This solves the problem of the network that when the switch has problems during use.

The specific steps are as follows:

1. Update the new ios of cisco3750G to make it consistent with the ios version of the original cisco3750G.

Copy ftp://10.0.0.164/c3750-ipservicesk9-mz.122-55.SE.bin flash:/
Boot system flash:/ c3750-ipservicesk9-mz.122-55.SE.bin

2. Empty the new 3750 configuration, and make initial configuration.

Erase startup-configure
Delete flash:/vlan.dat
Switch 1 renumber 2

3. Backup the original cisco 3750G configuration

4. The original cisco 3750G priority is increased

Switch 1 priority 9

5. Connect the original cisco 3750G and the new cisco3750G through two stacking lines.

6. The new 3750G is connected to the power supply

7. Check if the stacking status is normal.

Show switch

Second, the hot backup router protocol (HSRP)
SW1(config)#interface vlan 10
SW1(config-if)#standby 10 ip 192.168.10.254
SW1(config-if)#standby 10 preempt
SW1(config-if)#standby 10 priority 200
----------
SW2(config)#interface vlan 10
SW2(config-if)#standby 10 ip 192.168.10.254
SW2(config-if)#standby 10 preempt

Third, the comparison of the two methods

Stacking technology solves the redundancy problem of physical equipment on the one hand, and solves the problem of insufficient scalability of cisco3750G on the other hand, and provides a unified management platform.
HSRP solves the redundancy problem of physical equipment on the one hand, and can share the traffic and pressure on the other hand.

Note: When the switch pressure is not large or the cisco3750G device is more than two, the redundancy is recommended.

The above are two ways to achieve redundancy for the Cisco 3750G switch. If you have any questions or other suggestions, please contact our online customer service.

Next: 8 Reasons Why Choose Cisco Catalyst 2960 Series Switches

Tags: Network Switches Cisco switch

Related Blogs

Sep 26 , 2024

What is the difference between a router and a switch?

In the modern networking world, we often use routers and switches for networking, and they play an important role in network circulation in their respective fields. Due to the many similarities in the functions of these two devices, many people are confused about what exactly is a router? What is a switch is more or less confused. What are the differences between them? Today we will reveal them one by one.

Sep 21 , 2024

Creating and Deleting VLANs on Cisco Switches

In modern enterprise networks, VLANs play a very important role in network transmission. Administrators can use VLANs to divide a physical switch into multiple logical switches to simplify network management and improve network performance and security. As network administrators, learning how to create and delete VLANs on Cisco Catalyst switches is a must-have skill.

Sep 10 , 2024

Cisco 3750X Switch vs 3850 Switch, which is better for your business?

When choosing an enterprise switch, network administrators and IT engineers often encounter a situation where they are torn between two models, especially products with similar performance, such as the Cisco 3750X and 3850 series is a typical example. These two switches, as Cisco's classics, have a wide range of applications in the market. So, what is the difference between these two? And how are they related to each other?

Sep 04 , 2024

What is console cable? How to manage the switch easily through console cable?

In modern IT equipment management, the switch is the core of the network, and to manage it in the simplest way during daily use, it is indispensable to support the Console cable. Although many people do not understand this small cable, but it is the network administrator's daily work in the “secret weapon”. Whether you are configuring a device for the first time or troubleshooting a problem, the console cable is an indispensable networking tool.

Aug 29 , 2024

How do I connect a Cisco wireless AP to a wireless controller?

Wireless access points are primarily responsible for providing wireless signal coverage and connectivity, while wireless controllers are responsible for centrally managing and optimizing the performance and security of multiple access points. Used in combination, the two can build an efficient, stable and secure wireless network. How to connect wireless controller with wireless access point

Jul 05 , 2022

Cisco Catalyst 2960 Series Switches Overview

Cisco Catalyst 2960 series switches provide services for conventional office, branches, workspaces, medium-sized deployments and infrastructure networks. This series offers forwarding bandwidths up to 100-108 Gigabyte per second (Gbps) and switching bandwidth, which is full duplex up to 216 Gigabyte per second (Gbps). In addition, this series includes several other sub-series: Cisco 2960S, Cisco 2960X, Cisco 2960+, Cisco 2960L, and 2960XR.

Jul 05 , 2022

How To Upgrade IOS On Cisco 3560 Switches?

Do you want to upgrade Cisco 3560 switch IOS? It is very easy, you only need to do these 4 steps. Below are the details about how to do it.

Jul 05 , 2022

Top 9 Reasons for Network Switches Failure

The switch will inevitably encounter failures during normal use. Network switch failures can cause network downtime, affecting our business, production, and damage to our property, so we have to troubleshoot and repair the switch in the shortest possible time. Here we introduce you to the 9 common hardware and software failures of the switch.

Jul 06 , 2022

What Are the 4 Types of Network Switches?

The Internet of Everything is inseparable from the essential network equipment - switches, which will play a vital role in the networking of the Internet of Things. Below is an introduction to four network switch architectures, their types include Cascade Connection,Port Aggregation,Stacking,Layered.

Jul 06 , 2022

How Do I Troubleshooting Cisco Switches Hardware Issue

During the daily use of the switch, we may encounter some failures, the faults of the switch are mainly divided into two categories. The first type is a hardware failure, which is a problem on the hardware. The second type is software failure, which is a problem inside the switch. Now let's troubleshooting the hardware failure.