Name                                                                  Size  
 Parent Directory                                                        -   
 001 WAN introduction.mp4                                              1.6M  
 001 WAN introduction_en.srt                                           884   
 002 WAN Overview.mp4                                                   12M  
 002 WAN Overview_en.srt                                               4.1K  
 003 WAN Point-to-point link.mp4                                       7.4M  
 003 WAN Point-to-point link_en.srt                                    4.0K  
 004 CSU DSU.mp4                                                        25M  
 004 CSU DSU_en.srt                                                    3.4K  
 005 VPNs versus leased lines.mp4                                      4.7M  
 005 VPNs versus leased lines_en.srt                                   2.8K  
 006 DTE  DCE.mp4                                                       20M  
 006 DTE  DCE_en.srt                                                   3.3K  
 007 Serial interfaces (WAN Interface Cards).mp4                       6.3M  
 007 Serial interfaces (WAN Interface Cards)_en.srt                    2.0K  
 008 Serial Interfaces (continued).mp4                                 8.7M  
 008 Serial Interfaces (continued)_en.srt                              4.5K  
 009 Serial interface speeds.mp4                                        12M  
 009 Serial interface speeds_en.srt                                    4.4K