Recently, a reader wrote to tell me about the big relief he felt when he bought a Layer 3 MPLS VPN service. With such a site-to-site service, one option is to peer the WAN routers at customer ...

XO already offers Layer 2 site-to-site frame relay and Ethernet VPN services. And though XO is late to the MPLS VPN party – carriers such as AT&T and Verizon have been offering MPLS-based VPNs ...

“There are issues surrounding the size of routing tables” in Layer 3 MPLS VPNs, says Ben Crosby, a senior technologist at Alcatel SA, which offers MPLS on its 7670 Routing Switch Platform.

Layer 3, a "smarter" layer that actually routes packets, is where the RFC 2547 technique would be deployed. It is a Layer 2 MPLS VPN that Hutchison Global Crossing is using in Hong Kong.

VPN has evolved from a fiddly, unreliable linking of sites via layer 3, through a generation of MPLS as inflexible, static software overlay for multiple sites, all the way to SD-WAN.

Layer 3, a “smarter” layer that actually routes packets, is where the RFC 2547 technique would be deployed. It is a Layer 2 MPLS VPN that Hutchison Global Crossing is using in Hong Kong.

MPLS-based VPNs require no client devices, and tunnels usually terminate at the service provider edge-router. Layer 3 VPNs offer significant advantages to traditional Layer 2 services.

I have an IPSec tunnel between my home and work. (I am IT, I don't need lectures on the security ramifications of this as I'm aware of them.) My office has a semi-complicated "layer 3 MPLS" setup ...

When troubleshooting Layer 3 issues, Layer 2 technologies can sometimes be a huge help. For instance, if you can’t get communications from one side of a router to the distant side of an adjacent ...