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Network Troubleshooting Tools

Network Measurement Tools

The easiest way to install the most up-to-date version of the most useful tools is from the Internet2 software repo as follows:

  rpm -hUv http://software.internet2.edu/rpms/el6/x86_64/main/RPMS/Internet2-repo-0.5-7.noarch.rpm
yum -y install iperf iperf3 nuttcp bwctl owamp
Measurement Tool
Feature
bwctl schedules tests, one at a time (wrapper for iperf and nuttcp)
iperf /iperf3 measures end-to-end TCP/UDP performance
nuttcp measures end-to-end TCP/UDP performance
owamp measures latency, loss, and jitter
traceroute / scamper measures the network path and MTU
pathrate/pathload measures available bandwidth and capacity
UDPmon Network performance measurement tool
synack offers replacement ping for sites that block icmp

Network Testing Tools

Testing Tool
Purpose
NDT/NPAD: Web100-based Network Test Tools provides testing for a wide range of network trouble-areas
tcpdump dumps all TCP header information for a specified source/destination
tcptrace formats tcpdump output for analysis using xplot