Irwin Lazar

A new breed of VPN based on Multi-protocol Label Switching is emerging as an alternative to traditional VPNs based on IP Security. To further complicate the issue, MPLS-based VPNs come in two flavours: Layer 2 and Layer 3. What are the differences between the types of VPNs, and what

An MPLS specialist takes exception with an article which quoted prominent Internet researchers as being concerned about virtual private networks based on MPLS.