Routing and Switching Essentials v6 
Cisco Press 
 - Philippines  Pearson  Education Ltd   2017 
 - xxv, 605pp 
<br/><br/> Includes Bibliographical references and index 
<br/><br/><label>ISBN: </label>978-981-31-3262-7 
<br/><br/><label>Subjects--Topical Terms: </label>
<br/><br/><label>Dewey Class. No.: </label>621.39