diff --git a/core-writer/include/RingBuffer.hpp b/core-writer/include/RingBuffer.hpp
index 2ab658a..1554635 100644
--- a/core-writer/include/RingBuffer.hpp
+++ b/core-writer/include/RingBuffer.hpp
@@ -28,6 +28,20 @@ struct FrameMetadata
     std::map<std::string, std::shared_ptr<char>> header_values;
 };
 
+struct UdpFrameMetadata
+{
+    // Ring buffer needed data.
+    size_t buffer_slot_index;
+    size_t frame_bytes_size;
+
+    uint64_t pulse_id;
+    uint64_t frame_index;
+    uint32_t packet_index;
+
+    uint64_t recv_packets_1;
+    uint64_t recv_packets_2;
+};
+
 template <class T>
 class RingBuffer
 {
diff --git a/core-writer/src/RingBuffer.cpp b/core-writer/src/RingBuffer.cpp
index 61b5614..b738cd7 100644
--- a/core-writer/src/RingBuffer.cpp
+++ b/core-writer/src/RingBuffer.cpp
@@ -309,4 +309,5 @@ size_t RingBuffer<T>::get_slot_size()
     return slot_size_;
 }
 
-template class RingBuffer<FrameMetadata>;
\ No newline at end of file
+template class RingBuffer<FrameMetadata>;
+template class RingBuffer<UdpFrameMetadata>;
\ No newline at end of file