▁IP ▁networks ▁in ▁one ▁month ▁is ▁ 5 ▁million ▁years ▁ ▁PC ▁traffic ▁will ▁be ▁exceed ed ▁by ▁smart phone ▁traffic . ▁PC ▁traffic ▁will ▁account ▁for ▁ 2 5 % ▁of ▁total ▁IP ▁traffic ▁while ▁smart phone ▁traffic ▁will ▁be ▁ 3 3 % ▁ ▁There ▁will ▁be ▁a ▁two fold ▁increase ▁in ▁broad band ▁spe eds ▁ ▁Fact ors ▁that ▁led ▁to ▁the ▁Z ett aby te ▁Era ▁ ▁There ▁are ▁many ▁factors ▁that ▁brought ▁about ▁the ▁rise ▁of ▁the ▁Z ett aby te ▁Era . ▁In cre ases ▁in ▁video ▁streaming , ▁mobile ▁phone ▁usage , ▁broad band ▁spe eds ▁and ▁data ▁center ▁storage ▁are ▁all ▁contrib uting ▁factors ▁that ▁led ▁to ▁the ▁rise ▁( and ▁continu ation ) ▁of ▁data ▁consumption , ▁creation ▁and ▁rep lication . ▁ ▁In cre ased ▁video ▁streaming ▁ ▁There ▁is ▁a ▁large , ▁and ▁ever - g row ing ▁consumption ▁of ▁multimedia , ▁including ▁video ▁streaming , ▁on ▁the ▁Internet ▁that ▁has ▁contributed ▁to ▁the ▁rise ▁of ▁the ▁Z ett aby te ▁Era . ▁In ▁ 2 0 1 1 ▁it ▁was ▁estimated ▁that ▁roughly ▁ 2 5 - 4 0 % ▁of ▁IP ▁traffic ▁was ▁taken ▁up ▁by ▁video ▁streaming ▁services . ▁Since ▁then , ▁video ▁IP ▁traffic ▁has ▁nearly ▁double d ▁to ▁an ▁estimated ▁ 7 3 % ▁of ▁total ▁IP ▁traffic . ▁Furthermore , ▁C is co ▁has ▁predicted ▁that ▁this ▁tr end ▁will ▁continue ▁into ▁the ▁future , ▁estim ating ▁that ▁by ▁ 2 0 2 1 , ▁