Know MTU size
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Hi,
I would like to know what is the negotiated MTU size in my app. I see that MTU negotiation happens between central and peripheral devices. On central device, I have my Qt app. Some of the received packets I have to re-assemble based on MTU size. Please guide how to know MTU size.Rgds,
Venkat. -
https://en.wikipedia.org/wiki/Maximum_transmission_unit
or you search software way ?
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Hi,
I am looking how to know what is the negotiated MTU size in QT. Based on negotiated MTU size, I may have to assemble multiple packets to get the application layer packet. For assembling, I need to know what is the MTU size of the central device controlled by QT.Rgds,
Venkat. -
@vallapaneni said in Know MTU size:
I may have to assemble multiple packets
But why? This is something TCP is already doing for you.
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Hi,
My ble peripheral device sends application layer packet by segmenting as per MTU size.For example, central device may send a request and peripheral response needs to be 56 bytes. In such case, if negotiated MTU size is 23, peripheral device sends them as 3 segmented packets. On the central device side, I need to assemble them and form 56b bytes payload.Rgds,
Venkat.
