Reddit – Link list

For my sake I posted this comment from a Moderator on Sysadmin that points at resources for learning more about a variety of topics including Cisco networking, Linux, Microsoft and information security.

Another recommendation is to peruse the Gilded posts in this forum. A list of some of the best posts as voted up by the community.

Using iPerf to test bandwidth

We can measure link bandwidth between two hosts by using iPerf.

Configure the server:

iperf -s -u

Configure the client:

iperf -c -u -b 100m  -d -i 1

  1. -c Connect client to server at IP
  2. -u Use layer 4 transport protocol UDP instead of the default, TCP
  3. -b Send traffic over UDP and a bandwidth of 100 Mbit/s
  4. -d Make test in both directions
  5. -i Provide updates at 1 second intervals until test completes