Who is using MPLS and how

Tue, 03/22/2011 - 15:18 by Olivier Bonaventure • Categories:

In an interesting survey presented at MPLS 2010, Cariden, a vendor of provisioning and traffic engineering tools, describes the current deployments of MPLS. The survey mentions several interesting results :

  • the three major MPLS vendors are Cisco, Juniper and Alcatel Lucent, more than 15% of the networks are multivendor
  • 57% of the networks uses IS-IS, the others use OSPF
  • about two thirds of the networks use RSVP-TE even more in Juniper-only networks. The motivations for RSVP-TE are
    • Traffic engineering

    • Mismatched Capacities in Asia
    • Expensive Cross-Oceanic Links
    • N:1 Backup
    • Tactical TE
  • 25% of the networks have more than 15k LSPs
  • 60% of the networks that use RSVP-TE use CSPF to compute the paths of the LSPs, the others rely on offline path computation