Quality of Service Analysis of Traffic Engineering Implementation on VoIP Multi Protocol Label Switching (MPLS) Network

Denny Wijanarko, Bekti Maryuni Susanto


The  packet-switch  data  network  in  most  cases  does  not guarantee  the  quality  of service  either  partially  or  completely.  Due  to  the  challenges  of  traditional  routers  to  provide this  request,  especially  for  voice  and  video,  the  Multi  Protocol  Label  Switching  (MPLS) method is used. MPLS is designed to add a set of rules to IP so that traffic can be classified, marked  and  applied  to  policies.  Traditional  IP  routing  is  based  on  passing  traffic  to  the destination as quickly as possible. As a result, the routing protocol looks for the shortest path to the destination based on the link cost (also called the metric) that the packet is forwarded to. Traditional  IP  routing  does  not  take  into  account  the  bandwidth  of  available  links.  This  can cause  some  links  to  be  used  too  much  compared  to  others.  MPLS  TE  solves  this  problem. Source-based routing is applied to traffic from the headend router (MPLS TE tunnel source). Explicitly defined paths can be configured on the headend router where traffic for a particular LSP  must  follow.  The  performance  is  measured  using  parameters  of  throughput,  delay,  jitter and packet loss. The measurement results show a throughput value of 86 Kbps, delay 0.02 s, jitter 22.42 ms and packet loss 0%.

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