A few months back, I showed you how to organize your network into smaller subnets. My post covered the details of the concept of subnetting.
So if you missed that article, I would suggest taking a look at it to make sure you understand VLSM and this article in its entirety.
For now, I will assume that […]

Simple Network Management Protocol (SNMP) is an application layer protocol that facilitates the exchange of management information between network devices.
It provides a standardized framework for communication between SNMP managers and SNMP manageable devices.
Cisco networking devices are SNMP aware devices. They can be configured to use SNMP to inform an SNMP aware manager station […]

In today’s article, I’ll show you some useful ways that you can take advantage of the Cisco IOS debug feature.
First of all, I’d like to point out that all the commands presented in this article, and in general all IOS debug commands, should be used with great caution.
Cisco recommends that the use of debug […]

Virtual LANs within a switched local area network provide segmentation and effective network management as well as security.
Network Engineers have the flexibility of segmenting their network into separate VLANs according to work groups, department differentiation or even application usage without worrying about the physical location of the hosts.
What’s more, due to the fact […]

Since last year I’ve received a number of emails and calls all with the same question …
… what’s the difference between the old CCNA certification exam and the new one?
With the release of Train Signal’s new CCNA Training Videos I’m anticipating even more of these questions. So hopefully putting all of this down on paper […]