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In light of the recent tragic events in Haiti, it might be a good time to review some of the requirements for a well designed Uninterruptible Power Source (UPS) to be included in all of our critical network installations. As a CCNA, we are called upon to help maintai...

What is Network Time Protocol (NTP)? Well, it’s a network protocol used to synchronize clocks between computing systems over a packet switched network. It’s been around since the mid-1980s and was developed by David Mills at the University of Delaware; it is one of the oldest protocols still around on the Internet. NTP replaced other time synchronization technologies that didn’t have some capabilities to adjust time based on location of the time source or time server relative to the receiver or adjusting to the variation of delay found on typical data networks.

I recently came across an opportunity to use a relatively new feature in Cisco Unified Communications Manager (CUCM). Suppose you are the telecom administrator at a community hospital. During business hours, the Facilities Department is staffed and team members simpl...

Now that we are moving towards IPv6, the logical move would be to also run OSPF for that protocol suite, which makes sense and reduces the learning curve for implementation and support. But, that would mean that you have to run two OSPF processes — one for IPv4 unicast and one for IPv6 unicast. That means two sets of policies have to be applied, including security for OSPF itself. Running OSPFv3 for both IPv4 and IPv6 reduces the number routing protocols and the configuration that goes with that. It makes it easier to implement policy in a consistent way for both protocol suites.

Get an overview of Cisco Collaboration Systems Release (CSR) 10.6 with a focus on Cisco Unified Communications Manager (CUCM) supported features.

This five-day, hands-on, instructor-led course offers comprehensive training on Configuring and Troubleshooting Cisco Secure Access Service Edge (SASE). It equips students with the skills to implement, manage, and optimize cutting-edge Cisco SASE technologies such as...

This 3-day course will help you understand and learn how to implement and operate Cisco Compute Hyperconverged with Nutanix. This course also provides an overview and hands-on activities necessary to successfully migrate Hyperflex workloads into Cisco Nutanix infrast...

Become proficient in how to operate & troubleshoot Cisco data center network infrastructure running Cisco ACI, with expert instruction & hands-on practice.

Learn how to build and manage a Snort system using open source tools, plug-ins, as well as the Snort rule language to help manage, tune, and deliver feedback on suspicious network activity.

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...