iPexpert's CCNA DCICN Data Center Course

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.

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.

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.

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

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 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 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.