F5/unison
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

wifi: Have STA send packet to the AP in the channel switching test

Browse Source 
...instead of having the AP send a packet to the STA. In fact, AP may flush
the packets addressed to a STA when STA dissociates.
This commit is contained in:
Stefano Avallone
2023-08-11 16:30:22 +02:00
parent 75f9d5fb2e
commit 3f19c111e3
1 changed files with 16 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

33
src/wifi/test/wifi-channel-switching-test.cc
View File

@@ -45,9 +45,9 @@ NS_LOG_COMPONENT_DEFINE("WifiChannelSwitchingTest");
*
* This test verifies that communication between an AP and a STA resumes
* after that both switch channel and PHY band. The channel switch is
* scheduled to happen during the transmission of a frame sent by the AP
* to the STA. STA discards the frame, associates with the AP again and
* finally receives the frame successfully.
* scheduled to happen during the transmission of a frame sent by the STA
* to the AP. AP discards the frame, STA associates with the AP again and
* the AP finally receives the frame successfully.
*/
class WifiChannelSwitchingTest : public TestCase
{
@@ -69,7 +69,7 @@ class WifiChannelSwitchingTest : public TestCase
void Associated(Mac48Address bssid);
/**
* Callback invoked when PHY receives a PSDU to transmit from the MAC. Tracks the
* number of times a QoS data frame is transmitted by the AP.
* number of times a QoS data frame is transmitted by the STA.
*
* \param psduMap the PSDU map
* \param txVector the TX vector
@@ -84,7 +84,7 @@ class WifiChannelSwitchingTest : public TestCase
*/
void L7Receive(Ptr<const Packet> p, const Address& addr);
/**
* Send a packet from the AP to the STA through a packet socket
* Send a packet from the STA to the AP through a packet socket
*/
void SendPacket();
/**
@@ -172,8 +172,8 @@ void
WifiChannelSwitchingTest::SendPacket()
{
PacketSocketAddress socket;
socket.SetSingleDevice(m_apDevice.Get(0)->GetIfIndex());
socket.SetPhysicalAddress(m_staDevice.Get(0)->GetAddress());
socket.SetSingleDevice(m_staDevice.Get(0)->GetIfIndex());
socket.SetPhysicalAddress(m_apDevice.Get(0)->GetAddress());
socket.SetProtocol(1);
// give packet socket powers to nodes.
@@ -181,18 +181,18 @@ WifiChannelSwitchingTest::SendPacket()
packetSocket.Install(m_staNode);
packetSocket.Install(m_apNode);
Ptr<PacketSocketClient> client = CreateObject<PacketSocketClient>();
auto client = CreateObject<PacketSocketClient>();
client->SetAttribute("PacketSize", UintegerValue(m_payloadSize));
client->SetAttribute("MaxPackets", UintegerValue(1));
client->SetAttribute("Interval", TimeValue(MicroSeconds(0)));
client->SetRemote(socket);
m_apNode.Get(0)->AddApplication(client);
m_staNode.Get(0)->AddApplication(client);
client->SetStartTime(Seconds(0.5));
client->SetStopTime(Seconds(1.0));
Ptr<PacketSocketServer> server = CreateObject<PacketSocketServer>();
auto server = CreateObject<PacketSocketServer>();
server->SetLocal(socket);
m_staNode.Get(0)->AddApplication(server);
m_apNode.Get(0)->AddApplication(server);
server->SetStartTime(Seconds(0.0));
server->SetStopTime(Seconds(1.0));
}
@@ -229,11 +229,10 @@ WifiChannelSwitchingTest::DoRun()
m_apNode.Create(1);
m_staNode.Create(1);
Ptr<MultiModelSpectrumChannel> spectrumChannel = CreateObject<MultiModelSpectrumChannel>();
Ptr<FriisPropagationLossModel> lossModel = CreateObject<FriisPropagationLossModel>();
auto spectrumChannel = CreateObject<MultiModelSpectrumChannel>();
auto lossModel = CreateObject<FriisPropagationLossModel>();
spectrumChannel->AddPropagationLossModel(lossModel);
Ptr<ConstantSpeedPropagationDelayModel> delayModel =
CreateObject<ConstantSpeedPropagationDelayModel>();
auto delayModel = CreateObject<ConstantSpeedPropagationDelayModel>();
spectrumChannel->SetPropagationDelayModel(delayModel);
SpectrumWifiPhyHelper phy;
@@ -293,10 +292,10 @@ WifiChannelSwitchingTest::DoRun()
NS_TEST_EXPECT_MSG_EQ(+m_assocCount, 2, "STA did not associate twice");
NS_TEST_EXPECT_MSG_EQ(+m_txCount,
2,
"The QoS Data frame should have been transmitted twice by the AP");
"The QoS Data frame should have been transmitted twice by the STA");
NS_TEST_EXPECT_MSG_EQ(m_rxBytes,
m_payloadSize,
"The QoS Data frame should have been received once by the STA");
"The QoS Data frame should have been received once by the AP");
NS_TEST_EXPECT_MSG_EQ(+m_channelSwitchCount[0], 1, "AP had to perform one channel switch");
NS_TEST_EXPECT_MSG_EQ(+m_channelSwitchCount[1], 1, "STA had to perform one channel switch");