When you started receiving complaints from your Malaysian users about packet loss, you knew the problem had to be regional—your internal monitoring dashboard was a sea of green. Without a local presence in Southeast Asia, options for debugging the issue are limited. The Where's It Up trace test to the rescue!
trace gives you a window into to the local routing
environment. So if your requests from Malaysia to the
datacenter in Tokyo are routing through Moscow, you'll know,
and can work with the local ISPs to improve the routing tables.
traceroute to a hostname, and return
the route summary.
Ping a hostname, and return ping statistics and packet loss.