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Cisco Switches And Their Role In Network Security

Cisco Switches

Cisco Switches Are One Of The Most Widely Used And Popular Devices Used In Network Equipment And Datacenters, So Knowing Them Is An Effective Step In Choosing The Right One According To The Changing Needs Of The Organization.

Cisco switches are one of the most widely used and popular devices used in network equipment and data centers, so knowing them is a practical step in choosing the right one according to the organization’s changing needs.

Types of switches

Cisco switches are generally divided into two categories:

  1.  Modular switches
  2. fixed-configuration switches

Cisco modular switches offer the ability to add modules based on changing organizational needs, modules for specific applications such as firewalls, wireless networks, or network analysis software. At the same time, they also support the possibility of adding interfaces, power supply, and cooling fans. Therefore, modular switches have higher flexibility and are considered suitable for developing networks. In terms of price, they are more expensive compared to fixed controls. For example, Cisco Catalyst 3850-X series switches are modular.

Also, getting to know the Cisco WS-C3850-24XU-E switch can provide helpful information in this field.

Fixed configuration switches have a set number of ports and are usually not upgradeable; that’s why they don’t cost much. Fixed switches include unmanaged switches, smart switches, and managed switches. 300/500 series switches are good examples of fixed configuration switches.

Fixed-configuration switches are divided into the following types:

1- Managed switches (unmanaged switches)

 2- Smart switches

3- Managed switches

Manageable switches are the most expensive option among fixed switches and are also the most popular in large or growing networks.

 Other features

Four factors of switch speed, number of ports, PoE characteristics, and stackability should be considered to check Cisco switches.

Fast Ethernet (10/100 Mbps)

Gigabit Ethernet (10/100/1000 Mbps)

Ten Gigabit (10/100/1000/10000 Mbps)

40/100 Gbps (gigabits per second)

Choosing the right speed depends on the required throughput. For example, a Gigabit Ethernet switch like the Cisco WS-C2960X-24PS-L switch is needed to send extensive data regularly and constantly.

PoE or non-PoE: PoE capability makes it possible to supply power to devices such as iPhones, surveillance cameras, or wireless access points through a cable to transmit traffic. The advantage of this method is that the endpoints can be placed anywhere, even in areas where it is challenging to provide separate electricity infrastructure. In general, switches with PoE are expensive.

Standalone switches are configured and managed individually and also have limited capacity. But the advantage they have is that they are straightforward to troubleshoot if a problem occurs.

Stackable switches are switches that can be connected or stacked to increase capacity. The stack is considered a single unit to configure, manage, and troubleshoot each switch. In other words, the network continues to function as problems occur in any part of the stack.

Classification of Cisco switches based on the three-layer model

Based on the hierarchical division that plays a role in the LAN environment, Cisco switches include the following three categories:

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