Miscellaneous, Ports and packet sizes – TANDBERG Media Processing System MPS 200 User Manual
Page 162
D 13373.08
NOVEMBER 2007
MPS
TANDBERG
MPS
ADMINISTRATOR GUIDE
Miscellaneous
Ports and Packet Sizes
TCP and UDP Ports
The following TCP and UDP ports are relevant for the TANDBERG MPS.
* Listening sockets
Outgoing H.323 call:
First call uses 5555 for outgoing Q.931 and 5556 for H.245, next uses 5557 for Q.931 and 5558
for H.245, etc.
Incoming H.323 call:
First call uses 5555 for H.245, second 5556 etc. until it reaches 6555. It will then start on 5555
again, unless the TANDBERG MPS has been restarted in the meantime.
Layer 4 Ports Used in H.323 Meetings
Ports for TMS
Ports TMS (TANDBERG Management Suite) uses for communicating with the TANDBERG MPS
If HTTPS (port 443) is not available on the endpoint, HTTP (port 80) will be used instead
TCP and UDP Ports for TANDBERG MPS
Function
Port
Type
Direction
Gatekeeper RAS
1719
UDP
<=>
Gatekeeper Discovery
224.0.1.41:1718
UDP
<=>
Q.931 Call Setup
1720
TCP*
<=>
H.245 / Q.931
Range 5555 - 6555
TCP
<=>
Video
Range 2326 - 6951
UDP
<=>
Audio
Range 2326 - 6951
UDP
<=>
Data / FECC
Range 2326 - 6951
UDP
<=>
SSH
22
TCP*
<=>
Telnet
23
TCP*
<=>
HTTP
80
TCP*
<=>
HTTPS
443
TCP
<=>
SNMP (Queries)
161
UDP
<=>
SNMP (Traps)
162
TCP
=> (outgoing from MCU)
Ports TMS uses with TANDBERG MPS
Port
Functions
Protocol
443
Read system info/status
Give dial commands
Get call log
HTTPS
80
Events like boot, disconnect etc
HTTP traps to TMS
161 UDP
Check system status
SNMP Commands
!
IP Packet Sizes
Audio:
The TANDBERG MPS is sending maximum 320 bytes of audio per packet.
Video:
The TANDBERG MPS is sending maximum 1400 bytes of video per packet.
In addition, the system needs to add the following header information (40 bytes in total) for
each of the audio and video packets above:
20 bytes IP-header
•
8 bytes UDP-header
•
12 bytes RTP-header
•
Packet loss:
Packet loss is displayed in the conference overview of the TANDBERG MPS, see
. The number shown is the average of audio- and video- packets that are lost
during the last 2 seconds.
IP Packet Sizes
162
Introduction
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