Posts tagged with "Cisco"
How to Configure OSPF Multi Area on Cisco Devices
In this section, we will discuss how to configure OSPF Multi-Area. Setup topology on GNS3 and configure IP addresses s…
May 11, 2025
Suresh Thapa
How to Configure OSPF Single Area on Cisco Devices
Configuring OSPF (Open Shortest Path First) in a single-area setup is a fundamental step in establishing efficient rout…
May 10, 2025
Suresh Thapa
How to Configure DHCP Server on Cisco Router
Dynamic Host Configuration Protocol (DHCP) is a network protocol that enables a server to automatically assign an IP ad…
May 22, 2025
Suresh Thapa
How to Configure SSH (Secure Shell) on Cisco Devices
Secure Shell (SSH) is a protocol which provides a secure remote access connection to network devices. Communication bet…
May 23, 2025
Suresh Thapa
How to Configure Console, AUX, Telnet, Enable, and Enable Secret Passwords on a Cisco Router
When setting up a Cisco router, it's essential to configure various passwords to secure different modes and access poin…
May 24, 2025
Suresh Thapa
VLANs, Access and Trunking Ports on Cisco vs JunOS
Both Cisco IOS and Juniper JunOS, the operating systems for their respective networking devices, implement VLANs with s…
May 31, 2025
Suresh Thapa
How to Configure VLANs and Trunk Port on Cisco Switch
A VLAN is a group of devices on one or more LANs that are configured to communicate as if they were attached to the sam…
Jun 02, 2025
Suresh Thapa
How to Configure Switch Virtual Interface (SVI) as a Layer 3 Interface on Cisco Switch
A Switched Virtual Interface (SVI) is a VLAN of switch ports represented by one interface to a routing or bridging syst…
Jun 05, 2025
Suresh Thapa
How to Configure EtherChannel on a Cisco Switch: Step-by-Step Guide
EtherChannel is a port link aggregation technology. It allows grouping of several physical Ethernet links to create one…
Jun 06, 2025
Suresh Thapa
STP – Spanning Tree Protocol Configuration on Cisco Switches
Prevent switching loops and ensure network redundancy with Spanning Tree Protocol (STP)! Learn how to configure STP on …
Jun 07, 2025
Suresh Thapa
Multiple Spanning Tree Protocol (MSTP) on Cisco Switch
Multiple Spanning Tree Protocol (MSTP) was first specified in IEEE 802.1s and is standardized in IEEE 802.1Q. MSTP enab…
Jun 09, 2025
Suresh Thapa
How to Configure Static and Default Route on Cisco Router
Static routing is a form of routing that occurs when a router uses a manually-configured routing entry, rather than inf…
Jun 11, 2025
Suresh Thapa
How to Configure HSRP – Hot Standby Routing Protocol
HSRP Hot Standby Router Protocol is a redundancy protocol for setting up a fault-tolerant default gateway in a LAN envi…
Jun 13, 2025
Suresh Thapa
VTP – VLAN Trunking Protocol on Cisco Switch
VLAN Trunk Protocol (VTP) reduces administration in a switched network. When you configure a new VLAN on one VTP server…
Jun 16, 2025
Suresh Thapa
Part 1: Designing a Scalable Cisco Network Topology: Core, Distribution, and Access Layers
In today’s enterprise environments, building a robust, secure, and scalable network is essential to support business op…
Jun 21, 2025
Suresh Thapa
Part 2: Designing a Scalable Cisco Network Topology: Basic Switch Configuration and VLAN Planning
This blog series is a step-by-step journey through a fully functional enterprise-grade network lab built using Cisco ro…
Jun 22, 2025
Suresh Thapa
Part 3: Designing a Scalable Cisco Network Topology: VLANs and Trunk Links Between Switches
In this part, we will focus on segmenting the network using VLANs and establishing trunk links between switches to allo…
Jun 25, 2025
Suresh Thapa
Part 4: Designing a Scalable Cisco Network Topology: Spanning Tree Protocol (STP) to Prevent Loops and Ensure Network Stability
In a switched network with redundant links, Layer 2 loops can cause broadcast storms, MAC table instability, and comple…
Jun 28, 2025
Suresh Thapa
Part 5: Designing a Scalable Cisco Network Topology: Link Aggregation with EtherChannel
As networks grow, link redundancy and bandwidth become essential for handling more traffic and ensuring resilience. Cis…
Jul 02, 2025
Suresh Thapa
Part 6: Designing a Scalable Cisco Network Topology: Inter-VLAN Routing with Layer 3 Switches Using SVIs
By default, VLANs on a switch are isolated from one another — devices in VLAN 10 can’t communicate with devices in VLAN…
Jul 05, 2025
Suresh Thapa
Part 7: Designing a Scalable Cisco Network Topology: HSRP for Redundant Gateway Configuration
High Availability is crucial in enterprise networks — especially at the default gateway level. If the gateway fails, de…
Jul 07, 2025
Suresh Thapa
Building a Cisco VXLAN EVPN Fabric with NX-OSv – Part 2: EVPN Control Plane (BGP) & Multicast (PIM Anycast RP)
In Part 1, we built a stable underlay using OSPF and Layer 3 interfaces. Now, we move to the control plane and multica…
Apr 20, 2026
Suresh Thapa
Building a Cisco VXLAN EVPN Fabric with NX-OSv – Part 1: Underlay Network & Interface Configuration (OSPF)
In modern data center networks, scalability and flexibility are critical. Traditional Layer 2 designs struggle with lim…
Apr 20, 2026
Suresh Thapa
Building a Cisco VXLAN EVPN Fabric with NX-OSv – Part 3: VXLAN Data Plane (VTEP, VNI, and Anycast Gateway)
Now, in Part 3, we finally bring the VXLAN fabric to life by configuring the data plane on leaf switches. This part …
Apr 24, 2026
Suresh Thapa
