How Exactly Does MPLS-VPN Work?

MPLS (Multiprotocol Label Switching) VPN can be easily understood as the transfer technology of data and voice traffic through a provider's private IP network infrastructure. Developed and introduced to the market in 1999, MPLS based IP VPN technology serves a growing number of enterprise customers seeking the advantages of quality and secure communication transmission typical of a private circuit, but with the added benefit of flexibility allowed through a fully meshed shared network. MPLS VPN is a key solution that can help a multinational enterprise reach the next level.


CoS & QoS Explained

In conversations about data transmission over IP-VPN using MPLS technology, CoS (Class of Service) and QoS (Quality of Service) is almost always mentioned. The reason why is because these enable for efficient allocation of bandwidth through priority assignments of tasks. For example: mission critical tasks such as voice and video transmission will be assigned higher priority than data transfer that can afford to be sent at a later time.

The Difference Between CoS & QoS

At its basic level, one could say that CoS is the assigning of data type, while QoS is the actual mechanism that takes the assignments and processes and delivers the actual prioritization. Typically if there is priority transmission, then CoS is bundled with QoS to make it happen.

Labels Explained

MPLS-VPN is often characterized by it's labeling mechanism, which allows for faster data transfer. Not only does MPLS-VPN offer faster transmission through QoS prioritization, but MPLS is also faster because labeling technology accelerates the typical IP lookup, allowing for direct path transfer. Think of it like having a map withe directions versus asking directions at every stop.

Labeling also ensures that data never gets mixed up on the provider's network, with the label that functions like a packaging slip, the data always reaches its intended destination. This is also to say that the your data will be safe and private.


MPLS-VPN is superior to the basic InHouse established IP-VPN that uses IpSec technology for multiple reasons. The begin with, Internet based VPN is built upon the open web, which means that resources are shared and not guaranteed. Enterprises with resource demanding applications and mission critical transactions will require for a stable platform such as MPLS-VPN which is a private network. In addition, because it MPLS-VPN is a private network, there are no dangers of intruders commonly found on the open public internet. The criterias of steady bandwidth and protecting sensitive data is the reason many enterprises are making the shift to MPLS-VPN. Perhaps the greatest advantage of CHT Global's MPLS-VPN is its dedicated transpacific network, guaranteeing clear communication from one side of the pacific to the other.

Value Added Options

  • SSL VPN (Remote Access)
  • EZ VPN (Back-Up)