Voice only analysis - Revision history

Rubzzzz: /* Experimental Setup */

2007-02-23T12:08:56Z

Experimental Setup

2007-02-23T12:08:16Z

Conclusions

2007-02-23T12:05:52Z

Results

2007-02-23T12:05:29Z

Experimental Setup

2007-02-23T12:04:43Z

Conclusions

2007-02-20T17:09:34Z

Results

2007-02-20T17:08:22Z

Experimental Setup

2007-02-20T17:07:31Z

Experimental Setup

2007-02-20T17:06:38Z

Experimental Setup

2007-02-20T17:06:23Z

Experimental Setup

@@ Line 1: / Line 1: @@
 == Experimental Setup ==
-Because it is impossible to measure data traffic between two VM ware's on the same machine, the following setup is used.
+Because it is impossible to measure data traffic between two VM ware's on the same machine, the following setup is used. The SIP-phones all use the g711u codec.
 [[image:schematic_of_PC-config.png|Schematic overview of all PC's running which software.]]

← Older revision		Revision as of 12:08, 23 February 2007
Line 27:		Line 27:
	* From the graph shown above there can be concluded that the IAX2 traffic (black and blue line) uses less bandwidth than the SIP-traffic (red and green line). This is due to the IAX trunking which reduced the overhead.		* From the graph shown above there can be concluded that the IAX2 traffic (black and blue line) uses less bandwidth than the SIP-traffic (red and green line). This is due to the IAX trunking which reduced the overhead.
	* We also filtered for traffic between all three SIP-telephones and ''no direct traffic was detected between them.''		* We also filtered for traffic between all three SIP-telephones and ''no direct traffic was detected between them.''
		+	* The audio traffic is measured to be approximately 10500*8/1000=84kbps, which corresponds very well to the expected NEB value of 87.2 kbps.

← Older revision		Revision as of 12:05, 23 February 2007
Line 15:		Line 15:

	[[image:Wireshark-graph_G711_G711_traffic_Bps_oneway-traffic.png]]		[[image:Wireshark-graph_G711_G711_traffic_Bps_oneway-traffic.png]]
		+
		+	Legenda:
		+	* '''Blue''': Traffic between the Asterisk-boxes in the other direction.
		+	* '''Black''': Traffic between the Asterisk-boxes in one direction.
		+	* '''Red''': Traffic to and from SIP phone 301.
		+	* '''Pink''': Traffic to and from SIP phone 202.
		+	* '''Green''': Traffic to and from SIP phone 201.

	== Conclusions ==		== Conclusions ==

← Older revision		Revision as of 12:05, 23 February 2007
Line 4:		Line 4:

	[[image:schematic_of_PC-config.png\|Schematic overview of all PC's running which software.]]		[[image:schematic_of_PC-config.png\|Schematic overview of all PC's running which software.]]
−
−	~~Legenda:~~
−	* '''Blue''': Traffic between the Asterisk-boxes in the other direction.
−	* '''Black''': Traffic between the Asterisk-boxes in one direction.
−	* '''Red''': Traffic to and from SIP phone 301.
−	* '''Pink''': Traffic to and from SIP phone 202.
−	* '''Green''': Traffic to and from SIP phone 201.

	== Results ==		== Results ==

← Older revision		Revision as of 12:04, 23 February 2007
Line 26:		Line 26:

	* From the graph shown above there can be concluded that the IAX2 traffic (black and blue line) uses less bandwidth than the SIP-traffic (red and green line). This is due to the IAX trunking which reduced the overhead.		* From the graph shown above there can be concluded that the IAX2 traffic (black and blue line) uses less bandwidth than the SIP-traffic (red and green line). This is due to the IAX trunking which reduced the overhead.
−	* We also filtered for traffic between all three SIP-telephones and no traffic was detected.	+	* We also filtered for traffic between all three SIP-telephones and ''no direct traffic was detected between them.''

@@ Line 23: / Line 23: @@
 [[image:Wireshark-graph_G711_G711_traffic_Bps_oneway-traffic.png]]
-From the graph shown above there can be concluded that the IAX2 traffic (black and blue line) uses less bandwidth than the SIP-traffic (red and green line).
+== Conclusions ==
 We also filtered for traffic between all three SIP-telephones and no traffic was detected.

@@ Line 12: / Line 12: @@
 * '''Green''': Traffic to and from SIP phone 201.
+With WireShark data has been collected and the following filters are used in the in I/O-graph:
   Filter-Black: ip.src == 192.168.1.101 && ip.dst == 192.168.1.106
   Filter-Red  : ip.src == 192.168.1.3   && ip.dst == 192.168.1.106

@@ Line 6: / Line 6: @@
 Legenda:
 * '''Black''': Traffic between the Asterisk-boxes in one direction.
-* '''Blue''': Traffic between the Asterisk-boxes in the other direction.
+* '''Red''': Traffic to and from SIP phone 301.
-* '''Red''': Traffic to and from SIP phone 301
+* '''Pink''': Traffic to and from SIP phone 202.
 * '''Green''': Traffic to and from SIP phone 201.

@@ Line 5: / Line 5: @@
 [[image:schematic_of_PC-config.png|Schematic overview of all PC's running which software.]]
-A voice-call has been established between SIP phone 201 and SIP phone 301, which both use  the G711u codec.
+Legenda:
-* Traffic to and from Ext. 201 is Green
+* '''Black''': Traffic between the Asterisk-boxes in one direction.
-* Traffic to and from Ext. 301 is Red
+* '''Blue''': Traffic between the Asterisk-boxes in the other direction.
-* Traffic between Asterisk-boxes is Blue in one direction and black in the other
+* '''Red''': Traffic to and from SIP phone 301
 Used filters in I/O-graph: