diff --git a/src/lib.rs b/src/lib.rs
index 9d62270..559d054 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -689,9 +689,7 @@ pub trait PduProvider {
     fn packet_target(&self) -> Result<PacketTarget, PduError>;
 }
 
-pub struct DummyPduProvider {
-    phantom: core::marker::PhantomData<()>,
-}
+pub struct DummyPduProvider(());
 
 impl PduProvider for DummyPduProvider {
     fn pdu_type(&self) -> PduType {
@@ -833,7 +831,6 @@ pub mod alloc_mod {
         pub pdu_type: PduType,
         pub file_directive_type: Option<FileDirectiveType>,
         pub pdu: alloc::vec::Vec<u8>,
-        //packet_target: PacketTarget,
     }
 
     impl PduWithInfo {
diff --git a/tests/end-to-end.rs b/tests/end-to-end.rs
index 7b06fc5..a83f612 100644
--- a/tests/end-to-end.rs
+++ b/tests/end-to-end.rs
@@ -1,18 +1,17 @@
 use std::{sync::mpsc, thread, time::Duration};
 
 use cfdp::{
+    dest::DestinationHandler,
     filestore::NativeFilestore,
     request::StaticPutRequestCacher,
     source::SourceHandler,
     user::{CfdpUser, FileSegmentRecvdParams, MetadataReceivedParams, TransactionFinishedParams},
-    EntityType, FaultHandler, IndicationConfig, LocalEntityConfig, PacketInfo, PduWithInfo,
-    RemoteEntityConfig, StdRemoteEntityConfigProvider, TransactionId, UserFaultHookProvider,
-    VecRemoteEntityConfigProvider,
+    EntityType, IndicationConfig, LocalEntityConfig, PduWithInfo, RemoteEntityConfig,
+    StdCheckTimerCreator, TransactionId, UserFaultHookProvider,
 };
 use spacepackets::{
     cfdp::{ChecksumType, ConditionCode},
-    ecss::CrcType,
-    seq_count::{SeqCountProviderSimple, SeqCountProviderSyncU16},
+    seq_count::SeqCountProviderSyncU16,
     util::UnsignedByteFieldU16,
 };
 
@@ -143,7 +142,7 @@ impl CfdpUser for ExampleCfdpUser {
 }
 
 fn main() {
-    let local_cfg = LocalEntityConfig::new(
+    let local_cfg_source = LocalEntityConfig::new(
         LOCAL_ID.into(),
         IndicationConfig::default(),
         ExampleFaultHandler::default(),
@@ -151,7 +150,7 @@ fn main() {
     let (source_tx, source_rx) = mpsc::channel::<PduWithInfo>();
     let (dest_tx, dest_rx) = mpsc::channel::<PduWithInfo>();
     let put_request_cacher = StaticPutRequestCacher::new(2048);
-    let remote_cfg = RemoteEntityConfig::new_with_default_values(
+    let remote_cfg_of_dest = RemoteEntityConfig::new_with_default_values(
         REMOTE_ID.into(),
         1024,
         true,
@@ -161,17 +160,40 @@ fn main() {
     );
     let seq_count_provider = SeqCountProviderSyncU16::default();
     let mut source_handler = SourceHandler::new(
-        local_cfg,
+        local_cfg_source,
         source_tx,
         NativeFilestore::default(),
         put_request_cacher,
         2048,
-        remote_cfg,
+        remote_cfg_of_dest,
         seq_count_provider,
     );
     let mut cfdp_user_source = ExampleCfdpUser::new(EntityType::Sending);
 
-    thread::spawn(move || {
+    let local_cfg_dest = LocalEntityConfig::new(
+        REMOTE_ID.into(),
+        IndicationConfig::default(),
+        ExampleFaultHandler::default(),
+    );
+    let remote_cfg_of_source = RemoteEntityConfig::new_with_default_values(
+        LOCAL_ID.into(),
+        1024,
+        true,
+        false,
+        spacepackets::cfdp::TransmissionMode::Unacknowledged,
+        ChecksumType::Crc32,
+    );
+    let mut dest_handler = DestinationHandler::new(
+        local_cfg_dest,
+        1024,
+        dest_tx,
+        NativeFilestore::default(),
+        remote_cfg_of_source,
+        StdCheckTimerCreator::default(),
+    );
+    let mut cfdp_user_dest = ExampleCfdpUser::new(EntityType::Receiving);
+
+    let jh_source = thread::spawn(move || {
         loop {
             let mut next_delay = None;
             let mut undelayed_call_count = 0;
@@ -206,6 +228,45 @@ fn main() {
                 thread::sleep(Duration::from_millis(100));
             }
         }
-        //source_handler.(source_rx);
     });
+
+    let jh_dest = thread::spawn(move || {
+        loop {
+            let mut next_delay = None;
+            let mut undelayed_call_count = 0;
+            let packet_info = match source_rx.try_recv() {
+                Ok(pdu_with_info) => Some(pdu_with_info),
+                Err(e) => match e {
+                    mpsc::TryRecvError::Empty => None,
+                    mpsc::TryRecvError::Disconnected => {
+                        panic!("unexpected disconnect from destination channel sender");
+                    }
+                },
+            };
+            match dest_handler.state_machine(&mut cfdp_user_dest, packet_info.as_ref()) {
+                Ok(sent_packets) => {
+                    if sent_packets == 0 {
+                        next_delay = Some(Duration::from_millis(200));
+                    }
+                }
+                Err(e) => {
+                    println!("Source handler error: {}", e);
+                    next_delay = Some(Duration::from_millis(200));
+                }
+            }
+            if let Some(delay) = next_delay {
+                thread::sleep(delay);
+            } else {
+                undelayed_call_count += 1;
+            }
+            // Safety feature against configuration errors.
+            if undelayed_call_count >= 200 {
+                println!("Source handler state machine possible in permanent loop");
+                thread::sleep(Duration::from_millis(100));
+            }
+        }
+    });
+
+    jh_source.join().unwrap();
+    jh_dest.join().unwrap();
 }