Editing Multiprotocol Label Switching (section)

==Competing protocols==
MPLS can exist in both an [[IPv4]] and an [[IPv6]] environment, using appropriate routing protocols. The major goal of MPLS development was the increase of routing speed.<ref>{{Cite news|url=https://www.802101.com/is-mpls-faster/|title=Is MPLS faster?|date=2017-08-04|work=www.802101.com|access-date=2017-08-05|language=en-US}}</ref> This goal is no longer relevant<ref>{{Cite book|title=Advanced MPLS design and implementation|last=Alwayn, Vivek.|date=2002|publisher=Cisco Press|isbn=158705020X|location=Indianapolis, Ind.|oclc=656875465}}</ref> because of the usage of newer switching methods such as [[ASIC]], [[Content-addressable memory#Ternary CAMs|TCAM]] and [[Content-addressable memory|CAM]]-based switching able to forward plain IPv4 as fast as MPLS labeled packets.<ref>{{Cite web|url=https://forums.juniper.net/t5/Routing/An-Informal-Guide-to-the-Engines-of-Packet-Forwarding/ta-p/401192|title=An Informal Guide to the Engines of Packet Forwarding|last=Salah M. S. Buraiky|date=December 2018|website=Juniper Forums}}</ref> Now, therefore, the main benefit<ref>{{Cite web|url=https://archive.nanog.org/meetings/nanog49/presentations/Sunday/mpls-nanog49.pdf|title=MPLS for Dummies|last=Richard A Steenbergen|date=June 13–16, 2010|website=NANOG}}</ref> of MPLS is to implement limited traffic engineering and layer 3 or layer 2 service provider type VPNs over IPv4 networks.<ref>{{Cite book|url=http://www.surfer.mauigateway.com/library/JNCIA_studyguide.pdf|title=Juniper JNCIA Study Guide|last=Joseph M. Soricelli with John L. Hammond, Galina Diker Pildush, Thomas E. Van Meter, Todd M. Warble|date=June 2003|publisher=Wiley |isbn=0-7821-4071-8}}</ref>