Routing and switching essentials :  companion guide / 
Cisco Networking Academy. 
 - xxxiii, 815 pages :  illustrations ;  24 cm. 
<br/><br/><label>ISBN: </label>9781587133183  RM209.48 1587133180 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Routing (Computer network management).<br/>Telecommunication--Switching systems.