1.1 --- a/src/devices/wifi/yans-wifi-phy.cc	Fri Nov 13 14:51:59 2009 +0300
     1.2 +++ b/src/devices/wifi/yans-wifi-phy.cc	Fri Nov 13 18:20:50 2009 +0300
     1.3 @@ -317,7 +317,15 @@
     1.4  void 
     1.5  YansWifiPhy::SetChannelNumber (uint16_t nch)
     1.6  {
     1.7 -  NS_ASSERT(!IsStateSwitching()); 
     1.8 +  if (Simulator::Now () == Seconds (0))
     1.9 +    {
    1.10 +      // this is not channel switch, this is initialization 
    1.11 +      NS_LOG_DEBUG("start at channel " << nch);
    1.12 +      m_channelNumber = nch;
    1.13 +      return;
    1.14 +    }
    1.15 +
    1.16 +  NS_ASSERT (!IsStateSwitching()); 
    1.17    switch (m_state->GetState ()) {
    1.18    case YansWifiPhy::SYNC:
    1.19      NS_LOG_DEBUG ("drop packet because of channel switching while reception");