iPexpert's CCNA DCICN Data Center Course

Explore how hosts find servers using network addresses and how servers respond, as the module introduces fundamental addressing concepts and the tools and protocols that power networking.

Learn how MAC physical addresses and IPv4 logical addresses differ. Explore how ARP translates addresses on Ethernet and how DHCP assigns IPs to reach the server.

Define a network as interconnected devices under one administrative domain, using switches and routers to communicate within and between networks. Explain network diagrams and basic topologies: star, bus, mesh.

Discover host-to-host communication through the OSI seven-layer model and the TCAP IP model, learn encapsulation and PDU terminology, and see how standards enable multi-vendor interoperability.

Understand local area networks, from hosts and switches to routers, and how IP and Ethernet, ARP, and DHCP enable LAN communication; learn about collision and broadcast domains and scalable switching.

Explore Cisco IOS software via the command line interface, manage routers and switches, and use show running-config, show startup-config, context-sensitive help, and tab completion, all with no graphical user interface.

Set up and verify a switch from boot to operation by selecting physical mounting, establishing management access via serial or network, and configuring hostname, VLAN 1 interface, and basic modes.

Explore ethernet switching fundamentals, including copper and fiber options (multimode and single-mode), SFPs, MAC addresses, layer 2 frames, and duplex and auto-negotiation shaping unicast, multicast, and broadcast traffic.

Learn to troubleshoot switch media issues using ping and ICMP, verify interface status with show interface, and manage duplex, auto negotiation, CRC errors, and EMI/RFI on copper and fiber.

Explore establishing internet connectivity by examining IP addressing and the layer 3 network in the TCP/IP model, enabling web access, file transfers, and remote VPN connections for offices and users.

Explains how internet connectivity relies on IP addressing across the internet layer, differentiating network and host addresses, IPv4 and IPv6, subnetting with slash notation, DNS resolution, and default gateways.

Learn how IP addressing and subnetting shape data center networks, from broadcast and collision domains to routers and default gateways, using classful masks and slash notation.

Learn how VLANs segment networks, configure access and trunk ports, and troubleshoot VLAN and trunk issues on switches using CLI commands and topology examples.

Explore how spanning tree protocol prevents layer 2 loops by electing a root bridge, designating ports, and blocking redundant links, including rapid and multi-instance variants.

Learn how spanning tree interacts with etherchannels to bundle two links into a single port channel, so traffic runs over a virtual interface, with LACP, PAgP, or static modes.

Explore how the transport layer handles session multiplexing and reliability, comparing UDP’s best-effort delivery with TCAP’s connection-oriented, acknowledged transmission, including windowing and flow control.

Explore how routers use the routing table to forward layer 3 packets, selecting among connected, static, and dynamic routes learned via OSPF, BGP, and RIP.

Explore how packets move through a data center network by examining the packet delivery process from layer 2 MAC addressing and ARP to layer 3 routing and encapsulation.

Master static routing fundamentals, including routing tables and next-hop selection. Compare static to dynamic routing and learn when to use static routes in small networks, default routes, and reachability verification.

demonstrates static routes in ip routing using two connected routers, loopback interfaces, and a default route, highlighting reachability, arp, and show ip route commands.

Configure network address translation to enable internet access, map inside local to inside global addresses, and use static, dynamic, and overload NAT (PAT) with ACL controls.

Learn inter-VLAN routing for medium-sized networks using routers, router-on-a-stick with trunks and subinterfaces, and layer 3 switching with 802.1Q encapsulation.

Explore wide area network technologies, linking multiple networks over large distances with leased circuits, IP-based routing across layer 3, and point-to-point links versus LANs.

Discover how dynamic routing protocols exchange reachability information and select the best paths across networks. Compare interior and exterior gateway protocols, distance-vector and link-state approaches, including OSPF area hierarchies.

Explore layer 3 redundancy in Cisco networks with HSRP, RP, and GLBP to provide multiple gateways and a virtual IP. Understand active and standby roles to maintain connectivity.

Explore how EIGRP enables dynamic routing with administrative distance, equal-cost load sharing, and a topology table. Learn to advertise networks, form neighbors, and tune metrics using bandwidth and delay.

OSPF is a link-state routing protocol that builds a per-area database of LSAs to compute shortest paths using type 1, 2, 3, and 5 LSAs in the backbone.

Configure and verify OSPF in multi-area deployments, including area zero, area borders, virtual links, and redistribution, using show commands to validate neighbor, routes, and LSAs.

Explore Cisco nexus hardware, focusing on the five thousand and seven thousand series, unified ports for ethernet and fiber channel, fabric modules, and supervisor and line-card concepts.

Explore Nexus hardware differences across line cards, including routing features, proxy routing, and OTV, Lisp, fabric path. Understand power redundancy and the modular Linux-based software architecture that manages these systems.

Explore NX-OS bootup on Nexus 5K, perform startup config erasure, reload, and verify with show commands while navigating exec and global configuration modes.

Master NX-OS virtualization concepts, including VLAN ranges and VRFs for default and management routing, and virtual device contexts that split a chassis into multiple VTCs with dedicated interfaces.

Explore how NX-OS implements spanning tree, including port types normal, edge, and network, rapid PVST+, MSTP with MSDE, and bridge ID and extended system ID.

Explore NX-OS port channels that bond multiple links into a single logical interface, using LACP or static mode, with active or passive negotiation and verification commands.

Explore layer 3 basics on nx-os, including routed ports and port channels. Learn to switch a port from layer 2 to 3 and understand longest match and admin distance.

This lecture demonstrates configuring IP addressing on Nexus NX-OS devices, creating layer 3 port channels and loopback interfaces, and applying static routes to verify inter-switch connectivity.

Explore how RIP dynamic routing works on NX-OS, compare version 1 and 2, configure basic RIP with no auto summary, and enable equal-cost multipath with verification via show ip rip.

Explore eigrp, the hybrid routing protocol now an open standard, using dual algorithm, update-on-change updates, md5 authentication, and a composite metric that enables equal-cost multipath.

Learn open shortest path first (OSPF) as a vendor-neutral link-state routing protocol, including areas zero, multicast addresses 224.0.0.5 and 224.0.0.6, costs, timers, and MD5 authentication.

Learn to design and apply NX-OS access control lists on Cisco Nexus devices, optimize ACE order and direction, use object groups, and verify ACLs with offline and on-device testing.