Why network testing is essential
25/11/2020 12:17
Network testing use cases
Network testing needs to be run ad-hoc after a configuration adjust to validate that every little thing went effectively, at the same time as permanently, through active network monitoring, to detect network problems as soon as they occur. Within the initial case, here are some conditions in which you would like to validate your design and implementation assumptions just after a configuration change: Get extra facts about stresser
Circuits or site turn-up: once a brand new remote site or WAN hyperlink is installed, you could verify having a tool like iPerf that you just 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 bigger the network, the larger the danger that a routing policy change will have unexpected consequences on your routing table. By relying on distributed monitoring agents that run continuous ping and traceroute tests inside a full-mesh fashion, you could validate in real-time that a routing policy adjust is modifying your routing table as anticipated.
Firewall rules updates: it is usually good practice to verify that a brand new firewall ruleset is effectively implemented, no matter if it really should be blocking, or allowing, specific traffic. To confirm a effective update of a firewall, it is possible to use a port scanner like nmap, or execute a TCP-based ping test in the unprotected to the protected network.
High quality of Service (QoS): applying a QoS configuration to your network is just not an easy task. There are actually a lot of dependencies and tiny items that could go wrong, so testing is exceptionally important to verify that, in the end, the network is classifying, marking, and queuing your traffic as created. If you want to understand much more about this use case, it is possible to read a blog post by Matt Smith about how you can validate QoS.
So how do we get began with network testing? One in the tools that may get you began with is already inside your hands, and it is called the terminal. Whether or not 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 which can be used to perform network validation, which includes ping and traceroute.
The only trouble with all the CLI is the fact that it is local and not distributed. It is possible to telnet or SSH to distinct remote hosts, and remotely carry out the exact same tests that you simply would locally run. Even so, this method doesn’t scale and it does not present historical information. Because of this, it is vital to utilize a distributed, GUI-driven testing solution that simultaneously runs network testing commands on many hosts and shops their outcomes for historical review. NetBeez is a network monitoring solution that offers these characteristics within a browser-based interface. You may run ad-hoc, or permanently, commands like ping, traceroute, and iPerf.