EVPN Route Calculator
Estimate EVPN route-type counts and control-plane memory from VTEPs, MAC addresses, VNIs and prefixes.
Inputs
Total EVPN Routes
30,260
Type-2 MAC and MAC/IP Routes
28,800
Type-3 Inclusive Multicast Routes
960
Control-plane Memory
9.23MB
Routes Each VTEP Holds
1,261
Step by step
Values used
VTEPs in the fabric = 24 VTEPs; MAC addresses learned per VTEP = 600 MACs; VNIs active per VTEP = 40 VNIs; IP prefixes advertised (type 5) = 500 prefixes; Control-plane memory per route = 320 bytes
EVPN Route
type-2 = VTEPs × MACs × 2 (MAC and MAC/IP), type-3 = VTEPs × VNIs, type-5 = advertised prefixes; total is their sum.
Total EVPN Routes
= 30,260
Type-2 MAC and MAC/IP Routes
= 28,800
Type-3 Inclusive Multicast Routes
= 960
Control-plane Memory
= 9.23 MB
Routes Each VTEP Holds
= 1,261
How it works
Every VTEP advertises each locally learned MAC, and again with its IP when ARP or ND suppression is enabled, so type-2 routes dominate the table. Type-3 routes scale with VNIs per VTEP, and type-5 carries routed prefixes between VRFs. EVPN fabrics fail at the control plane long before the data plane, and this is the figure to compare against the platform's documented MAC, ARP and BGP path limits.
Formula
EVPN Route
type-2 = VTEPs × MACs × 2 (MAC and MAC/IP), type-3 = VTEPs × VNIs, type-5 = advertised prefixes; total is their sum.
- type-2
- MAC advertisement route, issued twice when ARP suppression adds the IP binding
- type-3
- Inclusive multicast route, one per VNI per VTEP for BUM handling
Frequently Asked Questions
How is EVPN Route calculated?
type-2 = VTEPs × MACs × 2 (MAC and MAC/IP), type-3 = VTEPs × VNIs, type-5 = advertised prefixes; total is their sum. Every VTEP advertises each locally learned MAC, and again with its IP when ARP or ND suppression is enabled, so type-2 routes dominate the table. Type-3 routes scale with VNIs per VTEP, and type-5 carries routed prefixes between VRFs.
Why does EVPN Route matter?
EVPN fabrics fail at the control plane long before the data plane, and this is the figure to compare against the platform's documented MAC, ARP and BGP path limits.
What values do I need to enter?
This calculator takes 5 inputs: VTEPs in the fabric, MAC addresses learned per VTEP, VNIs active per VTEP, IP prefixes advertised (type 5), Control-plane memory per route. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.