user@dcos-master-17841738-0:~$ curl -I http://ctrl1.marathon.l4lb.thisdcos.directory:3000/api/up
HTTP/1.1 200 OK
Date: Thu, 19 Jan 2017 18:40:41 GMT
Content-Type: text/plain; charset=utf-8

user@dcos-master-17841738-0:~$ curl -I http://ctrl1.marathon.l4lb.thisdcos.directory:3000/api/up
HTTP/1.1 200 OK
Date: Thu, 19 Jan 2017 18:40:42 GMT
Content-Type: text/plain; charset=utf-8

user@dcos-master-17841738-0:~$ curl -I http://ctrl1.marathon.l4lb.thisdcos.directory:3000/api/up
curl: (7) Failed to connect to ctrl1.marathon.l4lb.thisdcos.directory port 3000: No route to host
user@dcos-master-17841738-0:~$ curl -I http://ctrl1.marathon.l4lb.thisdcos.directory:3000/api/up
HTTP/1.1 200 OK
Date: Thu, 19 Jan 2017 18:41:02 GMT
Content-Type: text/plain; charset=utf-8

user@dcos-master-17841738-0:~$ curl -I http://ctrl1.marathon.l4lb.thisdcos.directory:3000/api/up
HTTP/1.1 200 OK
Date: Thu, 19 Jan 2017 18:41:04 GMT
Content-Type: text/plain; charset=utf-8

user@dcos-master-17841738-0:~$ curl -I http://ctrl1.marathon.l4lb.thisdcos.directory:3000/api/up
HTTP/1.1 200 OK
Date: Thu, 19 Jan 2017 18:41:05 GMT
Content-Type: text/plain; charset=utf-8

user@dcos-master-17841738-0:~$ curl -I http://ctrl1.marathon.l4lb.thisdcos.directory:3000/api/up
curl: (7) Failed to connect to ctrl1.marathon.l4lb.thisdcos.directory port 3000: No route to host
user@dcos-master-17841738-0:~$ curl -I http://ctrl1.marathon.l4lb.thisdcos.directory:3000/api/up
curl: (7) Failed to connect to ctrl1.marathon.l4lb.thisdcos.directory port 3000: No route to host