Ever needed to get an estimate of a link’s bandwidth and all you have is shell access to one of the end points?
Normally you would need access to both endpoints and run something like iperf across the link. That’s the proper way, but it takes a lot of time to setup (poke holes through firewalls etc). If you don’t want to go through that hassle and just need a quick estimate, you can use pingb.
Pingb estimates the bandwidth by measuring the difference between ICMP echo requests of different sizes.