+* TRANSPORT:
+ - disconnect notifications from TCP not always as nice as we might want
+ them to be (but how can we do this cleanly given that UDP is connectionless?)
+ - TCP not used bi-directionally (especially important also for PONG!)
+ - hostlist testcase shows that (randomly) we jump to an address that
+ seems to be a plugin function *after* the plugin has been unloaded
+ (directly from scheduler); check that *all* plugin tasks are cancelled
+ after plugin is unloaded! (need better testcases for that...)
+* STATISTICS:
+ - synchronous/asynchronous API (& implementation) is not nice;
+ => provide notification-based API
+ - does not seem to work with timeouts (especially if service is not running)
+* ARM:
+ - need to get rid of synchronous API for service starts (cause all kinds of problems)
+ [=> eliminate for need to tell ARM about service starts most of the time!] [Safey]
+* HELLO:
+ - need function to test "equivalency" of HELLOs; use in topology!
+* TOPOLOGY:
+ - needs more testing (especially F2F topology)
+* CORE:
+ - needs more testing