Office 365 Network Analysis tool is a web based tool that will run tests checking things like port connectivity, route paths between the client and tenant, bandwidth speed and capacity tests, and VoIP readiness. At the end of the test the tool generates reports that visualize the data that was collected.
North America:
http://na.deployoffice365.com
http://na1-fasttrack.cloudapp.net/
http://137.117.73.108/
EMEA:
http://emea.deployoffice365.com (DNS not resolving yet!)
http://em1-fasttrack.cloudapp.net/
http://137.117.182.107
APAC:
http://apac.deployoffice365.com (DNS not resolving yet!)
http://ap1-fasttrack.cloudapp.net
http://137.116.128.60
Until later,
Henrik Walther