Gstrrtpbin + Network buffer overflow detection

[amitpandya]

Hi all,

I have a pipeline for elementary streaming of H264/AAC data for RTP over UDP using Gstrtpbin as a sink element.

My pipeline looks like,

appsrc->Capsfilter->H264/AAC packetizer->Capsfilter->Gstrtpbin  

Here, appsrc will get encoded H264/AAC data as input.

Now,
1) Is their any way "to detect network buffer overflow caused by too narrow N/W bandwidth" with Gstrtpbin?
As in my case Gstrtpbin is a sink element which sends elementary streams to N/W.

If yes How can I do it within a pipeline(with Gstrtpbin)?  
If No then How can I prevent the Buffer overflow problem in such case?

2)will unintentional connection lost with N/W cause the buffer overflow in pipeline?

Any help for such problem is greatly appreciated.....

Regards,
Amit Pandya.