add more error telemetry

veilid-core/src/network_manager/mod.rs

@@ -807,17 +807,6 @@ impl NetworkManager {
         body: B,
     ) -> EyreResult<NetworkResult<SendDataKind>> {
         let destination_node_ref = destination_node_ref.as_ref().unwrap_or(&node_ref).clone();
-
-        if !node_ref.same_entry(&destination_node_ref) {
-            log_net!(
-                "sending envelope to {:?} via {:?}",
-                destination_node_ref,
-                node_ref
-            );
-        } else {
-            log_net!("sending envelope to {:?}", node_ref);
-        }
-
         let best_node_id = destination_node_ref.best_node_id();
 
         // Get node's envelope versions and see if we can send to it
@@ -832,6 +821,17 @@ impl NetworkManager {
         // Build the envelope to send
         let out = self.build_envelope(best_node_id, envelope_version, body)?;
 
+        if !node_ref.same_entry(&destination_node_ref) {
+            log_net!(
+                "sending envelope to {:?} via {:?}, len={}",
+                destination_node_ref,
+                node_ref,
+                out.len()
+            );
+        } else {
+            log_net!("sending envelope to {:?}, len={}", node_ref, out.len());
+        }
+
         // Send the envelope via whatever means necessary
         self.send_data(node_ref, out).await
     }

veilid-core/src/network_manager/native/protocol/udp.rs

@@ -31,8 +31,24 @@ impl RawUdpProtocolHandler {
             }
 
             // Insert into assembly buffer
-            let Some(message) = self.assembly_buffer.insert_frame(&data[0..size], remote_addr) else {
-                continue;
+            let message = match self
+                .assembly_buffer
+                .insert_frame(&data[0..size], remote_addr)
+            {
+                NetworkResult::Value(Some(v)) => v,
+                NetworkResult::Value(None) => {
+                    continue;
+                }
+                nres => {
+                    #[cfg(feature = "network-result-extra")]
+                    log_network_result!(
+                        "UDP::recv_message insert_frame failed: {:?} <= size={} remote_addr={}",
+                        nres,
+                        size,
+                        remote_addr
+                    );
+                    continue;
+                }
             };
 
             // Check length of reassembled message (same for all protocols)