How Can I Find My Cisco ID?

Searching for your “Cisco ID” is one of the most common hurdles faced by networking professionals, whether you are registering for an upcoming certification exam, claiming digital badges, or linking credentials to an employer’s partner portal. The primary reason for this confusion is that Cisco does not rely on a single identifier. Depending on what... » read more

how to configure the vlan on cisco switch

In enterprise and campus networks, flat Layer 2 networks present significant operational challenges. Unsegmented switches forward broadcast traffic across every connected port, degrading available bandwidth and exposing endpoints to unauthorized lateral access. Virtual Local Area Networks (VLANs) resolve these issues by logically partitioning a single physical switch into distinct broadcast domains. Configuring VLANs on Cisco... » read more

How to Configure VLANs on Cisco Switch

Virtual Local Area Networks (VLANs) form the core of modern enterprise switching architectures. By partitioning a single physical local area network into multiple isolated logical broadcast domains, VLANs enhance security, mitigate broadcast storms, and optimize traffic flow across departmental boundaries. Whether deploying a campus environment or isolating management and voice traffic in a branch office,... » read more

How to Delete VLANs from Cisco Switch

Managing Virtual Local Area Networks (VLANs) is a fundamental task in enterprise network administration. Over time, network restructuring, project decommissioning, or subnet consolidations require removing unused broadcast domains. However, removing a VLAN from a Cisco Catalyst or Nexus switch involves more than just entering a single command; network engineers must choose the correct scope—whether purging... » read more

What Is ROMMON in Cisco Router?

Connecting a console cable to a Cisco router typically yields the standard Cisco IOS command line interface. However, during hardware troubleshooting, a failed software upgrade, or an unexpected power loss, you may instead encounter a stark, minimal prompt: rommon 1 >. This interface indicates that the router has halted its standard startup sequence and entered... » read more

How to Configure Server in Cisco Packet Tracer

Cisco Packet Tracer is an essential simulation environment for network engineers, students, and CCNA candidates learning how endpoints interact with centralized network infrastructure. At the core of simulated network topologies is the generic server (Server-PT), a multi-service appliance capable of hosting core enterprise protocols such as DHCP, DNS, HTTP, FTP, and Email from a single... » read more

How to Delete Router in Cisco Packet Tracer

Designing and testing network topologies in Cisco Packet Tracer frequently requires adjusting your architecture. Whether you placed the wrong hardware model, need to streamline an oversized network, or simply want to clean up your workspace, knowing how to properly remove devices is a fundamental skill. While removing a router appears straightforward, Packet Tracer provides several... » read more

How to Factory Reset Cisco 9300 Switch

Resetting a Cisco Catalyst 9300 Series enterprise switch to its original factory defaults is a routine yet critical task for network administrators. Whether preparing hardware for Return Material Authorization (RMA), repurposing switches across branch offices, breaking apart a StackWise cluster, or sanitizing storage media in compliance with corporate security standards, choosing the correct reset method... » read more

How to Factory Reset Cisco 3850 Switch

The Cisco Catalyst 3850 Series switch is an enterprise workhorse, operating on Cisco IOS XE and supporting advanced Layer 2 and Layer 3 capabilities, StackWise-480, and integrated wireless controller features. Whether you are decommissioning hardware, repurposing an appliance for a new campus network topology, preparing gear for lab environments, or troubleshooting an unexpected lockout, wiping... » read more