NDT-DEV email list created

Revision: 422
Author:   

Date:     Thu Jul 28 04:54:19 2011
Log:      Added 'Protocol Overview' section.
http://code.google.com/p/ndt/source/detail?r=422

Modified:
 /wiki/NDTProtocol.wiki

=======================================
--- /wiki/NDTProtocol.wiki      Wed Jul 27 06:57:26 2011
+++ /wiki/NDTProtocol.wiki      Thu Jul 28 04:54:19 2011
@@ -22,7 +22,7 @@

 === Relationship of Tests and Control Protocols ===

-NDTP actually consists of two inter-related set of protocols: NDTP-Control  
and NDTP-Tests. NDTP-Control is used to initiate, start, and stop test  
sessions and to fetch their results, whereas NDTP-Tests is a set of smaller  
sub-protocols used to exchange test packets between two measurement nodes.
+NDTP actually consists of two inter-related sets of protocols:  
NDTP-Control and NDTP-Tests. NDTP-Control is used to initiate, start, and  
stop test sessions and to fetch their results, whereas NDTP-Tests is a set  
of smaller sub-protocols used to exchange test packets between two  
measurement nodes.

 NDTP-Tests consists of five smaller sub-protocols: Middlebox test, Simple  
firewall test, C2S throughput test, S2C throughput test and META test.  
These tests are completely independent from each other and can be run in  
any order. Moreover, new NDTP-Tests protocols can be easily created and  
integrated into the existing tests ecosystem.

@@ -64,6 +64,15 @@
 }}}

 == Protocol Overview ==
+
+As described above, NDTP consists of two inter-related sets of protocols:  
NDTP-Control and NDTP-Tests. Both of them are layered over TCP. The former  
is used to initiate and control test sessions and to fetch their results.  
The latter set of protocols is used to perform specific tests.
+
+The initiator of the test session establishes a TCP connection to a  
well-known port, 3001, on the target point and this connection remains open  
for the duration of the NDTP-Tests sessions.  A NDT server SHOULD listen to  
this well-known port.
+
+NDTP-Control messages are transmitted before NDTP-Tests sessions are  
actually started, after they are completed and between particular tests  
from the performed test-suite. Moreover, specific tests also use  
NDTP-Control messages to synchronise test sessions, exchange configuration  
data and additional information.
+
+All multi-octet quantities defined in this document are represented as  
unsigned integers in network byte order unless specified otherwise.
+
 == NDTP-Control ==
 == NDTP-Tests ==
 === Middlebox test ===