Tuesday 29 August 2017

VxLan vs Vlan

S No                                   VLAN                                     VXLAN                       Remarks
   1Scalable upto 4094 VlansScalable upto 16 million VXLAN segmentsVlans use 12-bit Vlan ID which limit to 4094 Vlans.VXLAN uses 24-bit ID which scales it upto 16 Million VXLAN segments
   2Vlan uses STP which blocks redundant paths and hence allows using only half of available paths.VXLAN uses underlying Layer 3 routing protocol to use all the available parts with technologies like ECMP (Equal cost multipath Routing) etc. 
   3Less flexible for multitenant environmentFlexible and suitable for multitenant environment. 
   4Uses Vlan tag on Layer 2 frame for encapsulation to extend Vlan across switches.Uses MAC-in-UDP encapsulation to extend Layer2 segments across locations.

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