how to dynamically change the SegmentSize in ns3

[李婷]

Hi, EveryOne!I am trying to dynamically modify the size of SegmentSize in ns3.

I recreated a subclass of TcpOptionOps and  in the PktsAcked function, used tcb-> m_segmentSize = segSize;

in main function,I set

Config::SetDefault("ns3::TcpSocketBase::Sack",BooleanValue(false));

Config::SetDefault("ns3::TcpSocketBase::LimitedTransmit",BooleanValue(false));

but I got some errors as follows:

assert failed. cond="!head->m_lost", file=../src/internet/model/tcp-tx-buffer.cc, line=792

terminate called without an active exception

I have been troubled by this problem for many days, hope someone can help me, thank you very much