Diagnostic Tools
Test network connectivity with simple and easy-to-use tools
Network diagnostic tools help users and network administrators to scan, diagnose and identify problems within a local network.
It is a type of network management software that helps scan for network connectivity, performance, and other related issues.
Network diagnostic software can be used in the following ways:
- Internet/network connectivity issues such as unplugged cables, misconfigured proxies, and more
- DNS analysis
- Identification and correction of errors related to IP addressing
- Incorrect routes are defined for different networks.
Powerful yet simple diagnostic tools in 7G Fuse devices
7G Fuse device includes built-in network tools that are extremely useful for troubleshooting connectivity issues. Some of them are designed to be used via a graphical user interface (GUI), while others can be used via a command line interface (CLI). Some of the network diagnostic tools are,
Ping
Ping is probably the number one utility that every network administrator uses on a daily basis. It helps us determine two things: latency and packet loss. If either packet loss or latency (or both) occurs, it can usually indicate saturation of bandwidth across a link or even a bad network cable or connection on a switch. Regardless, this will almost always be your first utility when you start troubleshooting.
Traceroute
This is probably the second most important of the three utilities that you will use on a daily basis. Traceroute is invaluable when it comes to finding out which network devices are between one point and another and it gives us some data about what those devices are doing. Traceroute can also help diagnose routing issues, especially if we have more than one network connection to the outside world.
Nslookup
This is a great utility for two things: finding the IP addresses associated with a domain name and checking if the Domain Name System (DNS) resolution is working for our host. Nslookup can query not only our configured DNS server but also any other DNS server we want. This can help us test remote DNS servers for our customers or even for our own ISP.
Tcpdump
Tcpdump is a command line utility that allows you to record and analyze the network traffic in your system. It is often used for troubleshooting network problems and as a security tool. Tcpdump is a powerful and versatile tool with many options and filters that can be used in a variety of cases. Since it is a command line tool, it can be used by logging into the SSH of a 7G Fuse device to collect data that can be analyzed later.
Ifstat
The ifstat command outputs statistics via the network interface. The interface saves records of the previously displayed data in history files. By default, only the difference between the last and the current call is displayed.
Iperf3
A great tool for on-site network bandwidth testing is Iperf, a simple but powerful tool that provides an overview of network performance metrics such as bandwidth, latency (delay), jitter, and packet loss. Iperf measures network performance in terms of bandwidth.
Diagnostic Tools
Test network connectivity with simple and easy-to-use tools
Network diagnostic tools help users and network administrators to scan, diagnose and identify problems within a local network.
It is a type of network management software that helps scan for network connectivity, performance, and other related issues.
Network diagnostic software can be used in the following ways:
- Internet/network connectivity issues such as unplugged cables, misconfigured proxies, and more
- DNS analysis
- Identification and correction of errors related to IP addressing
- Incorrect routes are defined for different networks.
Powerful yet simple diagnostic tools in 7G Fuse devices.
7G Fuse device includes built-in network tools that are extremely useful for troubleshooting connectivity issues. Some of them are designed to be used via a graphical user interface (GUI), while others can be used via a command line interface (CLI). Some of the network diagnostic tools are,
Ping is probably the number one utility that every network administrator uses on a daily basis. It helps us determine two things: latency and packet loss. If either packet loss or latency (or both) occurs, it can usually indicate saturation of bandwidth across a link or even a bad network cable or connection on a switch. Regardless, this will almost always be your first utility when you start troubleshooting.
This is probably the second most important of the three utilities that you will use on a daily basis. Traceroute is invaluable when it comes to finding out which network devices are between one point and another and it gives us some data about what those devices are doing. Traceroute can also help diagnose routing issues, especially if we have more than one network connection to the outside world.
This is a great utility for two things: finding the IP addresses associated with a domain name and checking if the Domain Name System (DNS) resolution is working for our host. Nslookup can query not only our configured DNS server but also any other DNS server we want. This can help us test remote DNS servers for our customers or even for our own ISP.
Tcpdump is a command line utility that allows you to record and analyze the network traffic in your system. It is often used for troubleshooting network problems and as a security tool. Tcpdump is a powerful and versatile tool with many options and filters that can be used in a variety of cases. Since it is a command line tool, it can be used by logging into the SSH of a 7G Fuse device to collect data that can be analyzed later.
The ifstat command outputs statistics via the network interface. The interface saves records of the previously displayed data in history files. By default, only the difference between the last and the current call is displayed.
A great tool for on-site network bandwidth testing is Iperf, a simple but powerful tool that provides an overview of network performance metrics such as bandwidth, latency (delay), jitter, and packet loss. Iperf measures network performance in terms of bandwidth.
