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  • Type-1, Ethernet Auto-Discovery routes: are used for network wide messaging. The Ethernet auto discovery routes are used when a customer edge (CE) device is multi-homed. In case when a CE device is single-homed, the Ethernet Subnet Identifier (ESI) is zero. Type-1 routes are advertised on per ESI and per EVI basis and used to achieve fast convergence.
  • Type-2, MAC with IP advertisement routes: are used to advertise the MAC and IP addresses of hosts.
  • Type-3, Inclusive Multicast routes: are used for the automatic discovery of VTEPs and dynamically establishing VXLAN tunnels.
  • Type-4, Ethernet Segment Routes: are needed in multi-homing scenarios and used for Designated Forwarder Election. Designated Forwarder is responsible for sending broadcast, unknown unicast and multicast (BUM) traffic to the CE on an Ethernet Segment.
  • Type-5, IP Prefix route: provides encoding for inter-subnet forwarding. These routes are used for advertising IP prefixes for connectivity between different subnets across the enterprise.

PICOS only supports Type-2, Type-3 and Type-5 routes for now. 


EVPN feature is currently supported on X86 platforms only.