# Switch Installation, Configuration and Maintenance Service

**URL:** https://securesys.com.tr/en/services/switch-installation-and-maintenance-service

In corporate network infrastructure, switches are the foundation components that let user computers, servers, IP telephones, access points, printers, camera systems, IoT devices and other network components communicate securely and at high performance.

A poorly designed or misconfigured switch infrastructure causes network outages, performance loss, broadcast storms, network loops, VLAN access problems and security weaknesses.

Enterprise switch management must therefore not be limited to racking the devices and enabling the ports.

**SecureSys Switch Installation, Configuration and Maintenance Services** provide end-to-end support for deploying, configuring, managing, monitoring, maintaining and security-optimizing Core Switch, Distribution Switch, Access Switch, and Layer 2 and Layer 3 switch infrastructure.

SecureSys treats switch infrastructure not merely as a device layer providing connectivity, but as **a critical component of the organization's performance, segmentation, availability, security and business continuity architecture**.

### What Is a Switch?

A switch is the network device that lets devices on the same network communicate with one another.

Switches forward incoming data packets to the correct port by MAC address, making communication across the network more efficient.

Modern enterprise switches provide far more than basic ethernet connectivity.

Advanced switches can offer;

- VLAN,
- Layer 3 Routing,
- Spanning Tree,
- Link Aggregation,
- LACP,
- Port Security,
- Access Control List,
- QoS,
- PoE,
- Stacking,
- SNMP,
- Network Monitoring

and many other capabilities.

Switch infrastructure is therefore one of the central components of an organization's network architecture.

### Switch Installation Service

In a new switch deployment, physically racking the device is not sufficient.

Before installation;

- user count,
- device count,
- port requirements,
- uplink capacity,
- network topology,
- VLAN structure,
- PoE requirements,
- internet connectivity,
- firewall structure,
- access point connections,
- IP telephony infrastructure,
- redundancy requirements

must be evaluated.

Within the SecureSys Switch Installation Service, an appropriate device architecture is established and the switches are integrated into the organization's network infrastructure.

### Switch Configuration Service

Switch configuration is critical to the performance and security of the network infrastructure.

Within the SecureSys Switch Configuration Service;

- device hostname,
- management IP,
- VLAN definitions,
- access port,
- trunk port,
- uplink connections,
- STP,
- LACP,
- Port Security,
- QoS,
- SNMP,
- Syslog,
- NTP,
- SSH,
- user accounts

can be configured.

The goal is not merely a working switch, but a secure, documented and sustainable switching infrastructure.

### Managed Switch Service

A Managed Switch is the switch type that lets network administrators manage ports, VLANs, traffic policies and security settings on the device centrally.

Within SecureSys Managed Switch services;

- installation,
- configuration,
- VLAN management,
- port management,
- traffic control,
- firmware updates,
- monitoring,
- troubleshooting

work can be carried out.

Managed Switch use brings significant advantages in security and manageability, particularly in enterprise network infrastructure.

### Core Switch Deployment and Management

The Core Switch is the central network device through which much of an organization's network traffic passes.

Servers, access switches, firewall systems and different VLANs can all communicate through the Core Switch.

A problem on the Core Switch causes a network outage across a large part of the organization.

Within SecureSys Core Switch services;

- core network design,
- Layer 3 routing,
- VLAN,
- uplink,
- stacking,
- redundancy,
- LACP,
- routing protocol,
- monitoring

structures can be built.

### Access Switch Deployment and Management

The Access Switch is the layer at which users and endpoint devices join the network infrastructure.

In SecureSys Access Switch services;

- user ports,
- access VLAN,
- Voice VLAN,
- PoE,
- Port Security,
- trunk uplink,
- access point connections,
- printer and IoT connections

can be configured.

Correct configuration at the access layer is an important part of network security.

### Distribution Switch Management

In large network infrastructures, a Distribution Switch layer can sit between the Core and Access layers.

The distribution layer can take on tasks such as;

- routing,
- VLAN aggregation,
- access control,
- traffic filtering,
- redundancy

and similar functions.

In multi-layer network architectures, SecureSys evaluates the Core, Distribution and Access layers together.

### Layer 2 Switch Services

Layer 2 switches forward traffic by MAC address.

On these devices, capabilities such as;

- VLAN,
- trunk,
- access port,
- Spanning Tree,
- Port Security,
- LACP

can be used.

SecureSys can carry out the deployment and management of Layer 2 switch configuration.

### Layer 3 Switch Services

Layer 3 switches offer routing capability alongside switching functions.

These devices can route between VLANs.

Within SecureSys Layer 3 Switch services;

- inter-VLAN routing,
- static routing,
- OSPF,
- ACL,
- gateway configuration

can be carried out.

### VLAN Configuration

One of the most important functions of switch infrastructure is VLAN management.

Using VLANs, systems on the same physical switch infrastructure can be separated logically.

For example;

- User VLAN,
- Server VLAN,
- Voice VLAN,
- Guest VLAN,
- Management VLAN,
- CCTV VLAN,
- IoT VLAN,
- Backup VLAN

can be created.

This structure strengthens network segmentation and contributes to both performance and security.

### Access Port Configuration

Access ports are generally where user computers, printers or other endpoint devices connect.

An access port can be assigned to only one VLAN.

In switch projects, SecureSys helps prevent incorrect network access by ensuring access ports are assigned to the correct VLAN.

### Trunk Port Configuration

Trunk links carry multiple VLANs over the same physical connection.

Links between the Core Switch and Access Switch are generally configured as trunks.

Incorrect trunk configuration causes VLAN access problems or security risk.

SecureSys ensures the necessary VLANs are carried across trunks in a controlled way.

### Spanning Tree Protocol

Layer 2 loops forming in switch infrastructure cause serious network outages.

Spanning Tree Protocol is used to prevent loops on networks with redundant links.

SecureSys supports configuring the;

- STP,
- RSTP,
- MSTP

protocols in line with the network architecture.

### Root Bridge Planning

In a Spanning Tree structure, Root Bridge selection determines which paths network traffic follows.

Uncontrolled Root Bridge selection results in suboptimal traffic routes.

SecureSys can ensure critical Core Switch devices are planned as root with appropriate STP priority values.

### BPDU Guard

BPDU Guard helps prevent unauthorized switches connected to access ports from changing the network topology.

Within switch security, SecureSys can apply Layer 2 security controls such as BPDU Guard.

### Root Guard

Root Guard helps prevent an unauthorized or misconfigured switch on the network from becoming the STP Root Bridge.

It can be used for STP security in large enterprise network infrastructures in particular.

### Loop Guard

Loop Guard is one of the security mechanisms that helps prevent certain Spanning Tree faults from creating a network loop.

Where suited to the network topology, SecureSys can apply Loop Guard configuration.

### Link Aggregation

Link Aggregation lets multiple physical switch links be used as a single logical connection.

This structure;

- can increase bandwidth,
- can provide link redundancy,
- can improve uplink performance.

Within the SecureSys Switch Installation Service, Link Aggregation structures can be built.

### LACP Configuration

LACP is the protocol that manages Link Aggregation links dynamically.

Multiple physical uplinks between Core and Access switches can be used as a single link group with LACP.

Traffic therefore continues over the remaining links when one physical connection fails.

### Switch Stacking

Stacking technology lets multiple physical switches be managed as a single logical device.

Stack structures can offer;

- central management,
- easy scalability,
- redundancy,
- port capacity

advantages.

On supported vendor technologies, SecureSys can carry out Switch Stack deployment.

### Switch Redundancy

Dependence on a single switch creates risk for critical services.

In redundant network design, SecureSys can evaluate methods such as;

- dual core switch,
- stack,
- redundant uplink,
- LACP,
- separate physical routes

and similar approaches.

### PoE Switch Management

PoE switches deliver electrical power alongside data over the ethernet cable.

PoE technology is used widely for;

- Access Points,
- IP telephones,
- IP cameras,
- IoT devices

in particular.

In PoE Switch services, SecureSys also takes port power consumption and capacity planning into account.

### PoE Capacity Planning

On PoE switches, it is not only port count that matters but the device's total PoE power budget.

In environments with many cameras or access points, power capacity can fall short.

SecureSys can evaluate PoE capacity in both device selection and existing infrastructure analysis.

### Switch Port Security

Uncontrolled use of physical network ports lets unauthorized devices join the corporate network.

With Port Security, the MAC addresses permitted on specific ports can be restricted.

Where required, SecureSys can apply;

- maximum MAC,
- sticky MAC,
- violation mode,
- shutdown policy

configuration.

### Disabling Unused Ports

Leaving unused switch ports enabled makes it easier for anyone with physical access to join the corporate network.

In switch hardening work, SecureSys can apply measures such as disabling unused ports and moving them to a separate unused VLAN.

### Management VLAN

Having switch management IP addresses inside the user network increases security risk.

A separate Management VLAN can therefore be created.

SecureSys can ensure critical network devices such as;

- switch,
- firewall,
- router,
- access point

are reached over a separate management network.

### Secure Management with SSH

Managing switches over insecure protocols such as Telnet is not advisable.

Within switch security, SecureSys ensures SSH is used wherever possible.

Management access can be restricted to specific administrator IP addresses.

### SNMP Management

SNMP lets switches be monitored by central monitoring systems.

In SNMP integration, SecureSys supports the use of appropriate SNMP versions and access controls according to the required security level.

### Syslog Integration

Sending switch logs to a central log system simplifies both troubleshooting and security analysis.

SecureSys can have switches send logs to;

- Syslog Server,
- SIEM,
- SOC

infrastructures.

### NTP Configuration

Network device clocks being synchronized matters for log analysis and for evaluating security events against a correct timeline.

SecureSys can ensure switches are synchronized with central NTP servers.

### Switch Firmware Management

Switch vendors release firmware updates to address security and stability problems in their products.

However, firmware upgrades must be carried out in a controlled way.

In the firmware update process, SecureSys applies the;

**Current Version → Compatibility Check → Backup → Upgrade → Test**

approach.

### Switch Backup Service

Backing up switch configuration regularly matters for rapid recovery when a device fails.

SecureSys can establish;

- periodic config backup,
- pre-change backup,
- pre-firmware backup

processes.

### Switch Configuration Management

Large organizations can run dozens or hundreds of switches.

Controlling the configuration of these devices centrally delivers operational sustainability.

SecureSys provides support on switch configuration;

- documentation,
- backup,
- version tracking,
- change management

topics.

### Switch Monitoring

Monitoring switches continuously helps detect network problems early.

The parameters that can be monitored;

- device reachability,
- CPU,
- RAM,
- port status,
- interface traffic,
- error counter,
- uplink,
- temperature,
- fan,
- power supply

can be configured accordingly.

### 24/7 Switch Monitoring

In critical organizations, Core and Distribution switches may need uninterrupted monitoring.

Depending on service scope, SecureSys can bring switch infrastructure into **24/7 monitoring** systems.

Alarms can be raised to operations teams in critical situations.

### Interface Error Analysis

CRC errors, packet drops and similar faults on switch ports affect network performance.

The cause of these problems can be;

- cabling,
- SFP,
- physical port,
- duplex,
- speed setting

related.

By analyzing interface statistics, SecureSys helps identify physical or logical problems.

### Network Loop Analysis

Incorrect cabling or STP configuration causes network loops.

During a network loop, a broadcast storm can render the network unusable.

SecureSys can identify the source of a loop by analyzing;

- MAC table,
- STP state,
- interface traffic,
- network topology

data.

### Broadcast Storm Protection

Excessive broadcast traffic consumes switch resources and degrades network performance.

On supported devices, features such as Storm Control can limit abnormal broadcast, multicast or unknown unicast traffic.

### MAC Address Table Analysis

Switch MAC address table data provides important input to network troubleshooting.

Which port a given device is connected to, or abnormal MAC movement, can be analyzed from these tables.

### Port Mirroring

Port Mirroring copies network traffic from a given switch port to another port for analysis.

This capability can be used in;

- NDR,
- IDS/IPS,
- packet capture,
- network troubleshooting

projects.

SecureSys can configure SPAN or Port Mirroring in line with the security solution concerned.

### Switch and NDR Integration

For Network Detection and Response solutions to analyze network traffic, a copy of traffic can be taken from the switches.

By building the necessary SPAN, mirror port or suitable traffic forwarding structures in the switch infrastructure, SecureSys supports NDR integration.

### Switch and NAC Integration

[Network Access Control](/en/services/nac-solutions) solutions can control endpoint devices joining the network according to identity and security policy.

Switch infrastructure is one of the most important components of NAC systems.

In NAC integration, SecureSys can support configuring technologies such as;

- 802.1X,
- RADIUS,
- Dynamic VLAN,
- port access control

and similar controls.

### 802.1X Network Access Control

802.1X helps prevent network access being granted without user or device authentication.

Using 802.1X on switch ports in corporate environments strengthens Zero Trust and Network Access Control architecture.

### RADIUS Integration

Switch administrator logins or user authentication processes can be integrated with central RADIUS systems.

Device access can thereby be controlled through central identity management.

### Switch and Firewall Integration

Switch and firewall infrastructure must be designed together.

While VLANs are created on the switch, traffic between different security zones can be passed through the firewall.

For example;

**User VLAN → Firewall → Server VLAN**

or;

**Guest VLAN → Firewall → Internet**

structures can be built.

### Switch and Wireless Network Integration

Access points generally run over the switch infrastructure.

In corporate wireless environments, different SSIDs such as;

- Corporate Wi-Fi,
- Guest Wi-Fi,
- IoT Wi-Fi

can be assigned to different VLANs.

By configuring switch and wireless infrastructure together, SecureSys delivers segmentation.

### Voice VLAN and IP Telephony Systems

Running IP telephones on a separate Voice VLAN brings advantages in both management and QoS.

SecureSys can configure;

- Voice VLAN,
- PoE,
- QoS,
- IP Phone ports

settings.

### QoS Management

QoS gives priority on the network to critical traffic types.

QoS policies can be used particularly for;

- VoIP,
- video conferencing,
- critical business applications

workloads.

SecureSys can build Quality of Service configuration suited to need on switch infrastructure.

### Switch ACL Management

On Layer 3 switches, ACLs can restrict traffic between specific networks.

However, applying security policy between critical network segments at the firewall gives more granular control in many scenarios.

SecureSys determines the correct access control point for the architecture.

### Switch Hardening Service

Switches, like other network systems, have an attack surface.

Within SecureSys Switch Hardening;

- review of default accounts,
- strong password policy,
- SSH,
- management VLAN,
- SNMP security,
- disabling unused ports,
- Port Security,
- BPDU Guard,
- logging,
- NTP

controls can be applied.

### Switch Health Check

Within the SecureSys **Switch Health Check** service, the technical and security state of the existing switching infrastructure is analyzed.

The review can evaluate;

- firmware,
- VLAN,
- trunk,
- STP,
- LACP,
- CPU,
- memory,
- interface errors,
- uplink,
- configuration backup,
- security settings

areas.

Existing risks and improvement recommendations are reported at the end of the work.

### Switch Troubleshooting Service

Switch-related network problems block user access to applications, the internet or servers.

In troubleshooting work, SecureSys checks;

- port status,
- VLAN,
- trunk,
- MAC table,
- STP,
- uplink,
- interface errors,
- routing

to locate the source of the problem.

### Switch Migration Service

Replacing older switch infrastructure with new devices must be planned carefully.

In Switch Migration projects, the;

- existing config analysis,
- port mapping,
- VLAN list,
- uplink structure,
- new device configuration,
- testing,
- cutover

steps can be applied.

The aim is a safe transition with minimal service interruption.

### Switch Vendor Change

When moving from one vendor's switch infrastructure to another, command structures and features differ.

Rather than copying old configuration verbatim, it must be rebuilt to suit the new vendor's architecture.

In vendor migration projects, SecureSys analyzes the existing network policy and builds configuration suited to the target platform.

### Switch Capacity Planning

Switch selection must not consider current port count alone.

Capacity planning must evaluate;

- user growth,
- PoE requirements,
- uplink capacity,
- 1G/10G/25G links,
- stack requirements,
- SFP/SFP+ needs

together.

### Switch Port Capacity

Depending on organizational growth, 24-port or 48-port switch options can be considered.

However, device selection should account for future growth capacity rather than today's port count alone.

### Uplink Capacity Planning

Hundreds of Mbps or Gbps of traffic can build up on an access switch.

The uplink capacity carrying that traffic to the Core Switch must be sufficient.

By analyzing uplink utilization, SecureSys can assess the need for 1G, 10G or higher-speed links.

### SFP and Fiber Links

Fiber infrastructure can be used for long-distance or high-speed links between switches.

SecureSys can evaluate;

- SFP,
- SFP+,
- multimode,
- singlemode,
- fiber uplink

requirements against the network architecture.

### Switch Hardware Health Check

Not only switch software but its physical components must be monitored.

The checks can evaluate;

- fan,
- power supply,
- temperature,
- PSU redundancy,
- stack health

indicators.

### Multi-Location Switch Management

Organizations with several branches can run many switches across different locations.

With a central switch management approach, SecureSys supports standardizing;

- device inventory,
- firmware,
- configuration,
- monitoring,
- backup

processes.

### Switch Inventory Management

Maintaining an inventory of the switches in corporate network infrastructure matters for operational management.

The inventory can hold;

- device model,
- serial number,
- IP address,
- location,
- firmware,
- port count,
- warranty status

information.

### Switch Documentation

Documenting switch infrastructure correctly simplifies both troubleshooting and change management.

Within project scope, SecureSys can produce;

- switch inventory,
- port mapping,
- VLAN list,
- uplink information,
- topology,
- IP plan

documentation.

### Port Mapping

Knowing which device is connected to which switch port simplifies network management considerably.

Port Mapping documentation can hold;

- switch name,
- port number,
- device,
- VLAN,
- description

information.

### Switch Topology

Preparing a network topology showing the connections between Core, Distribution and Access switches simplifies operational processes.

The topology can show;

- uplink connections,
- stack structures,
- trunk links,
- firewall connections,
- server connections

relationships.

### Switch Change Management

An incorrect change on a switch causes a network outage across the organization.

For switch changes, SecureSys applies the;

**Planning → Backup → Change → Test → Validation**

approach.

A rollback plan can be prepared for critical changes.

### Switch Maintenance Service

Regular technical maintenance is required for switches to run uninterrupted over long periods.

Within the SecureSys Switch Maintenance Service;

- device health,
- firmware,
- ports,
- VLAN,
- trunk,
- STP,
- uplink,
- logs,
- CPU,
- memory,
- temperature,
- config backup

can be checked.

### Periodic Switch Maintenance

Periodic maintenance helps detect unnoticed problems in switch infrastructure early.

Maintenance frequency can be planned monthly, quarterly or at other intervals according to organization size and criticality.

### Remote Switch Management

With secure remote management of switch systems, many operations can be carried out without visiting the location physically.

Over secure access infrastructure, SecureSys can carry out;

- config changes,
- troubleshooting,
- monitoring,
- firmware checks

work.

### On-Site Switch Technical Support

On-site technical support may be required for hardware replacement, physical cabling or unreachable devices.

Depending on the service model, SecureSys can plan remote and on-site support together.

### Switch SLA Service

Defining response times in advance matters in critical network infrastructures.

Depending on service scope, SecureSys can establish an SLA model covering;

- incident priorities,
- response times,
- escalation,
- remote support,
- on-site support

parameters.

### Managed Switching Service

Managed Switching is the service model in which an organization's switch infrastructure is operated continuously by a professional team.

Within the service;

- device management,
- monitoring,
- config backup,
- port changes,
- VLAN management,
- firmware,
- troubleshooting,
- reporting

processes can be run.

### What Switch Infrastructure Delivers to Organizations

Professional switch management contributes to;

- reducing network outages,
- keeping port and VLAN structure tidy,
- improving performance,
- strengthening Layer 2 security,
- increasing redundancy,
- improving network visibility,
- reducing operational load

across the estate.

### The SecureSys Switch Service Process

#### \1. Discovery

The existing switches and network topology are identified.

#### \2. Analysis

Port, VLAN, trunk, uplink and STP structures are reviewed.

#### \3. Design

The Core, Distribution and Access architecture is prepared.

#### \4. Configuration

Switches are configured to the defined structure.

#### \5. Security

Port Security, Management VLAN and switch hardening settings are applied.

#### \6. Testing

VLAN, trunk, uplink and failover structures are verified.

#### \7. Go-Live

The switch infrastructure moves into the production environment.

#### \8. Monitoring and Maintenance

Devices are tracked periodically or on a 24/7 model.

### Why the SecureSys Switch Installation and Maintenance Service?

Switch infrastructure forms the foundation of all network communication.

SecureSys therefore treats switch operations not device by device, but as part of the organization's overall network and security architecture.

Where required, the;

**Switch + Network + Firewall + NAC + NDR + SIEM + SOC**

components are evaluated together.

This approach aims to make the switching infrastructure not merely available, but secure, observable and sustainable.

### Frequently Asked Questions

#### What is a switch maintenance service?

A switch maintenance service covers regular review of switch firmware, performance, ports, VLANs, STP, uplinks, logs and configuration.

#### What is a Managed Switch?

A Managed Switch is an enterprise switch on which VLAN, port, security and network settings can be managed centrally.

#### What is a Core Switch?

The Core Switch is the central switching device through which much of an organization's network traffic passes.

#### What is an Access Switch?

The Access Switch is the switch layer at which users and endpoint devices join the corporate network infrastructure.

#### What is the difference between a Layer 2 and a Layer 3 Switch?

A Layer 2 Switch essentially switches by MAC address, while a Layer 3 Switch also has routing capability.

#### Can switches be monitored 24/7?

Yes. Device reachability, ports, CPU, RAM, uplinks and other critical values can be tracked through central monitoring systems.

#### Can switch configuration be backed up?

Yes. Switch configuration can be backed up regularly and before changes.

#### Can VLANs be created on a switch?

On managed switches, VLAN configuration can be created and ports assigned to the relevant VLANs.

#### Can switch logs be sent to a SIEM?

On supported devices, switch logs can be sent over Syslog to SIEM or central log management systems.

#### How is switch security improved?

Management VLAN, SSH, Port Security, BPDU Guard, disabling unused ports, secure SNMP and regular firmware updates can all be used.

### Strengthen Your Switch Infrastructure with SecureSys

Incorrect VLAN definitions, unmonitored trunk ports, old firmware versions, insufficient uplink capacity or faulty Spanning Tree configuration can all turn into network outages affecting the whole organization.

With SecureSys you can have your existing switch infrastructure analyzed, redesign your Core and Access switching architecture, strengthen your VLAN and port security, and move your switch systems onto a sustainable management model.

**Contact SecureSys for detailed information on Switch Installation, Configuration and Maintenance Services, to arrange a Switch Health Check for your existing infrastructure, or to establish a Managed Switching service model.**

**Make your switch infrastructure more than a layer that provides connectivity; turn it into a secure, high-performing and centrally manageable network layer.**