) ▁▁ 2 0 0 4 : ▁G MP LS ; ▁Lar ge - scale ▁L 3 V PN ▁▁ 2 0 0 6 : ▁Lar ge - scale ▁TE ▁" Har sh " ▁▁ 2 0 0 7 : ▁Lar ge - scale ▁L 2 V PN ▁▁ 2 0 0 9 : ▁Label ▁Switch ing ▁Mult ic ast ▁▁ 2 0 1 1 : ▁M PL S ▁transport ▁profile ▁ ▁In ▁ 1 9 9 6 ▁a ▁group ▁from ▁I psilon ▁Network s ▁proposed ▁a ▁" flow ▁management ▁protocol ". ▁Their ▁" IP ▁Switch ing " ▁technology , ▁which ▁was ▁defined ▁only ▁to ▁work ▁over ▁AT M , ▁did ▁not ▁achieve ▁market ▁domin ance . ▁C is co ▁Systems ▁introduced ▁a ▁related ▁proposal , ▁not ▁restricted ▁to ▁AT M ▁transmission , ▁called ▁" Tag ▁Switch ing " ▁( with ▁its ▁Tag ▁Distribution ▁Pro tocol ▁T DP ). ▁It ▁was ▁a ▁C is co ▁propriet ary ▁proposal , ▁and ▁was ▁renamed ▁" Label ▁Switch ing ". ▁It ▁was ▁handed ▁over ▁to ▁the ▁Internet ▁Engineering ▁Task ▁Force ▁( I ET F ) ▁for ▁open ▁standard ization . ▁The ▁I ET F ▁work ▁involved ▁propos als ▁from ▁other ▁vend ors , ▁and ▁development ▁of ▁a ▁cons ensus ▁protocol ▁that ▁combined ▁features ▁from ▁several ▁vend ors ' ▁work . ▁ ▁One ▁original ▁motiv ation ▁was ▁to ▁allow ▁the ▁creation ▁of ▁simple ▁high - speed ▁switch es ▁since ▁for ▁a ▁significant ▁length ▁of ▁time ▁it ▁was ▁impossible ▁to ▁forward ▁IP ▁packets ▁entirely ▁in ▁hardware . ▁However