MultiProtocol Label Switching (MPLS)

MultiProtocol Label Switching (MPLS) is a next-generation technology offering that empowers many extremely advanced services; all while utilizing the underlying routed IP network that's already bought and paid for.

At its core, MPLS to creates a "pseudo-layer" between Layer 2, the Data Link Layer (e.g. Ethernet), and Layer 3, the Network Layer (e.g. IP). Many have begun calling this pseudo-layer "Layer 2.5". Many services that previously required expensive, dedicated resources can be achieved using MPLS. These services are typically broken down into two categories: Layer2 VPNs, and Layer3 VPNs.

Layer 2 VPNs

Layer 2 VPNs (i.e. Virtual Private Networks) can be further broken down into two sub-categories: Point-to-point and point-to-multipoint. KanREN L2 VPNs can be provisioned very quickly, and may be used on a permanent, or periodic basis. KanREN's L2 VPNs may be used as more traditional VPNs, or as a "DCN" like servive -- in fact, KanREN implements much of the same transport technology as Internet2 and other regional and state networks for providing a circuit service

Point-to-Point

The KanREN backbone offers point-to-point MPLS-enabled Virtual Leases Lines (VLLs). A VLL can be built to carry specific VLANs OR any site-generated VLANs. NOTE: site-generated VLANs require dedicated ports on KanREN core nodes; please contact KanREN if these services are required.

More information regarding KanREN's VLL service offering can be found on the Virtual Leased Line page.

Point-to-Multipoint

For situations calling for point-to-multipoint service, KanREN has you covered with Virtual Private LAN Services (VPLS). A VPLS creates a geographically diverse broadcast domain; allowing for common subnets to be applied to geographically separated facilities. NOTE: VPLS services typically require a dedicated port on a KanREN backbone node.

For more information regarding KanREN's VPLS service offering, please check out the Virtual Private LAN Service page.

Layer 3 VPNs

While L2 VPNs attempt to provide fully functional Layer 2 environment, Layer 3 VPNs allow for private routing environments. The main difference is that L3 VPNs require member site routers to participate in routing decisions where L2 VPNs provide pseudo-wire services (ie: traditional circuit concepts apply).

L3 VPNs allow member sites with remote campuses to maintain a degree of control over security and routing while leaving backbone routing to the KanREN backbone. To achieve this level of flexibility, site routers are BGP peered directly to the KanREN backbone. This helps eliminate older concepts of "collectors" for smaller circuits.

More information regarding KanREN's L3 VPN service can be found on the Virtual Private Network page.