Uphill climb for VPLS?

NetworkWorld.com, 05/26/06

Multicast is one of the key considerations enterprises face when deciding on Layer 2 or Layer 3 MPLS VPNs for their service oriented architectures, grid/utility computing environments, application aware networks and security implementations, according to attendees at this week's MPLScon 2006 conference.

VPLS, a much heralded yet scarcely deployed Ethernet/MPLS hybrid, is generating considerable demand from enterprises due to user familiarity with Ethernet, among other factors. But VPLS is still an immature technology compared to IETF RFC 2547 Layer 3 MPLS VPNs, especially in services such as multicast.

And only four of the top 10 Ethernet service providers in the U.S. offer VPLS, according to Vertical Systems Group. Indeed, carriers such as Verizon have 3,000 customers for its 2547-based Private IP service yet none for VPLS because it won't be available for about another year.

-- Jim Duffy

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