Network testing use cases
Network testing needs to be run ad-hoc just after a configuration adjust to validate that every thing went nicely, too as permanently, by means of active network monitoring, to detect network problems as soon as they occur. In the first case, listed below are some scenarios in which you'd like to validate your design and implementation assumptions following a configuration adjust: Get extra facts about strongest stresser
Circuits or site turn-up: once a brand new remote site or WAN link is installed, you could verify having a tool like iPerf which you get the bandwidth requested of the carrier and with ping to confirm that the circuit has no packet loss.
Routing policy transform: resulting from network complexity, the larger the network, the larger the threat that a routing policy adjust may have unexpected consequences on your routing table. By relying on distributed monitoring agents that run continuous ping and traceroute tests in a full-mesh fashion, you are able to validate in real-time that a routing policy transform is modifying your routing table as anticipated.
Firewall rules updates: it is often very good practice to verify that a brand new firewall ruleset is effectively implemented, no matter if it ought to be blocking, or enabling, specific traffic. To confirm a productive update of a firewall, you are able to use a port scanner like nmap, or execute a TCP-based ping test in the unprotected to the protected network.
Quality of Service (QoS): applying a QoS configuration for your network is just not a simple task. There are actually so many dependencies and small factors that could go wrong, so testing is particularly important to confirm that, inside the end, the network is classifying, marking, and queuing your traffic as made. If you'd like to discover extra about this use case, you'll be able to read a blog post by Matt Smith about how you can validate QoS.
So how do we get began with network testing? One on the tools that can get you began with is already inside your hands, and it’s called the terminal. Regardless of whether you happen to be inside a Unix/Linux, Windows, or Mac atmosphere, the out-of-the-box command line interface (CLI) gives loads of utilities that could be used to execute network validation, such as ping and traceroute.
The only issue with the CLI is the fact that it is local and not distributed. You are able to telnet or SSH to unique remote hosts, and remotely perform the exact same tests that you simply would locally run. Nevertheless, this method doesn’t scale and it does not provide historical data. Because of this, it is significant to work with a distributed, GUI-driven testing solution that simultaneously runs network testing commands on several hosts and stores their outcomes for historical review. NetBeez is really a network monitoring solution that offers these attributes within a browser-based interface. You are able to run ad-hoc, or permanently, commands like ping, traceroute, and iPerf.
