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Home > Archive > Voice over IP Cisco > December 2007 > Video Call Bandwidth requirements
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Video Call Bandwidth requirements
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| Syed Khalid Ali 2007-12-18, 7:12 am |
| Hi
Need help regarding video conferencing setup. We will have 8 site (including head office). The minimum bandwidth per video call will be 512 kbps. The connections are T1 lines. Currently we have IPSec VPN with overlay routing over the internet for data. So how do I calculate the bandwidth for each site if all sites do conferencing simultaneously.
My rought estimate is:
512k + L3 + L2 + IPSec + GRE
regards,
syed khalid ali
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| Philip Walenta 2007-12-18, 1:12 pm |
| This is going to greatly depend on how your video conferences will work.
Are you doing all sites to a central conference bridge?
Are you doing point to point, or is one unit hosting the conference?
Based on what you have below I'd say your bi-directional stream will be in
the neighborhood of 650k per unit (keep in mind - many video codecs have the
ability when little motion or sound is occuring to reduce the outgoing
bandwidth. The company I work for (Polycom) can see a 512k conference drop
on our units to as little as ~128k depending on the video conditions).
_____
From: cisco-voip-bounces@puck.nether.net
[mailto:cisco-voip-bounces@puck.nether.net] On Behalf Of Syed Khalid Ali
Sent: Tuesday, December 18, 2007 5:46 AM
To: cisco-voip@puck.nether.net
Subject: [cisco-voip] Video Call Bandwidth requirements
Hi
Need help regarding video conferencing setup. We will have 8 site (including
head office). The minimum bandwidth per video call will be 512 kbps. The
connections are T1 lines. Currently we have IPSec VPN with overlay routing
over the internet for data. So how do I calculate the bandwidth for each
site if all sites do conferencing simultaneously.
My rought estimate is:
512k + L3 + L2 + IPSec + GRE
regards,
syed khalid ali
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| Syed Khalid Ali 2007-12-18, 1:12 pm |
| Hi
Thanks for the reply. My customer have Ploycom HDX 9004 at head office and HDX 9001 at branch offices. It will be very helpful if you provide me more information about these devices.
regards
Syed Khalid Ali
----- Original Message -----
From: Philip Walenta
To: 'Syed Khalid Ali' ; cisco-voip@puck.nether.net
Sent: Tuesday, December 18, 2007 9:03 PM
Subject: RE: [cisco-voip] Video Call Bandwidth requirements
This is going to greatly depend on how your video conferences will work.
Are you doing all sites to a central conference bridge?
Are you doing point to point, or is one unit hosting the conference?
Based on what you have below I'd say your bi-directional stream will be in the neighborhood of 650k per unit (keep in mind - many video codecs have the ability when little motion or sound is occuring to reduce the outgoing bandwidth. The company I work for (Polycom) can see a 512k conference drop on our units to as little as ~128k depending on the video conditions).
------------------------------------------------------------------------------
From: cisco-voip-bounces@puck.nether.net [mailto:cisco-voip-bounces@puck.nether.net] On Behalf Of Syed Khalid Ali
Sent: Tuesday, December 18, 2007 5:46 AM
To: cisco-voip@puck.nether.net
Subject: [cisco-voip] Video Call Bandwidth requirements
Hi
Need help regarding video conferencing setup. We will have 8 site (including head office). The minimum bandwidth per video call will be 512 kbps. The connections are T1 lines. Currently we have IPSec VPN with overlay routing over the internet for data. So how do I calculate the bandwidth for each site if all sites do conferencing simultaneously.
My rought estimate is:
512k + L3 + L2 + IPSec + GRE
regards,
syed khalid ali
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