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Watch a quick fundamental overview of layer two devices.

Managing Industrial Networks for Manufacturing with Cisco Technologies (IMINS2024) is a lab-intensive course, which helps you with the skills required to successfully implement and troubleshoot the most common industry standard protocols while leveraging best practic...

The Managing Cisco Network Operating Systems (CNIOS) course introduces the fundamental concepts of Cisco networking operating systems, including IOS XE, NX-OS, and IOS XR. This training is designed for individuals who are new to Cisco or networking professionals who...

Diane Teare, Global Knowledge's Cisco Course Director, discusses the advantages to taking our CCNA Boot Camp.

Learn how to configure IP Multicast with Multiprotocol Label Switching (MPLS) and how to add encryption for Multicast with the Group Encrypted Transport VPN (GETVPN).

Discover how VLANs and trunks play a vital role in improving the efficiency and security of the enterprise network.

Learn how a switch moves data through the network, and what makes a switch efficient.

That depends on their configurations. For example: While it makes very good sense to include redundant physical links in a network, connecting switches in loops, without taking the appropriate measures, will cause havoc on a network. Without the correct measures, a switch floods broadcast frames out all of its ports, causing serious problems for the network devices. The main problem is a broadcast storm where broadcast frames are flooded through every switch until all available bandwidth is used and all network devices have more inbound frames than they can process.