While I (sort of) agree with the basic premise of what you&#x27;re saying, in the real world, its not very helpful.<p>We didn&#x27;t &quot;pick&quot; UDP. We operate a VoIP related service that interoperates with many different carriers via SIP. Almost all of those carriers ONLY use UDP. SIP UDP packets can often be fairly large. This is especially problematic because GCE uses a non standard MTU size (1460 bytes). This does not make our app, or every other SIP related app that is forced to use UDP, &quot;Buggy&quot;.