\begin{table}[ht!]
	\centering
    \caption{Conditionally required Communication Management messages, used to acquire \acrfull{ud} addressing information.}
	\label{tab:conditionally_required_cm_messages}
	\vspace{3mm}

     \begin{tabular}{p{2.6cm} | p{11.4cm}} 
	 \hlineB{3}
     \Tstrut
	 \textbf{CM message} & \textbf{Description}\\
	 \hhline{=|=}
	 \Tstrut
         \acrshort{sidrreq}      & The \textit{\acrlong{sidrreq}} is used to request \gls{ud} addressing information from a remote node for a certain service ID.
	 \Bstrut\\
     \hline
	 \Tstrut
         \acrshort{sidrrep}      & The \textit{\acrlong{sidrrep}} is a response to the \acrshort{sidrreq} and contains all information to communicate with the entity that was specified as service ID in the request message.
	 \Bstrut\\
	 \hlineB{3}
	 \end{tabular}
\end{table}
