Routing and switching essentials / 
Cisco Networking Academy 
 - xxxiv, 503 pages :  Illustration ;  27 cm. 
<br/><br/><label>ISBN: </label>9781587134265 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cisco IOS--Study guides<br/>Routing (Computer network management)<br/>Telecommunication--Switching systems