VXLAN/EVPN Basics Flashcards
NVE
Network Virtual Interface (Logical interface where the encapsulation and de-encapsulation occur)
VTEP
Virtual Tunnel Endpoint - This is the device that does the encapsulation and de-encapsulation.
VNID
Vxlan Network Identifier - 24 bit segment ID that defines the broadcast domain.
How many total segments in VxLAN domain?
~16 Million
Interface associated with VTEP
Loopback
L3VNI
VLAN with a VNI assigned specifically for inter-vlan routing.
Route Target
A way to identify a route in BGP for manipulation, it’s an extended community value
How to get routes to/from a leaf
Import and export of route targets
VXLAN UDP Port
4789
Route Distinguisher
A unique number prepended to routes in MP-BGP to be able to distinguish same routes from different VRFs.
Type-2 Route
Used to advertise locally learned MAC address, host routes, or ARP entries. MAC is required, IP optional.
Type-3 Route
Advertises multicast routes and vtep to vtep tunnel establishments. Used for dynamic Ingress replication tunnel establishment.
Type-5 Route
IP-only routes for advertising externally learned routes and routes where edge device is first hop.
IMET route
A type 3 route in BGP - Inclusive Multicast Ethernet Tag
Prefix for MAC-only type-2 route
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