HLE uses standard BGP EVPN VPLS services to extend the BD to the remote network. A BGP EVPN VPLS service is automatically created when a BD is created on the ISA.
HLE only supports VXLAN as a BGP EVPN data plane. When the next-hop field of the MP_REACH_NLRI is the VXLAN VTEP, it supports the following BGP EVPN route types:
Type 2 MAC or IP advertisement route:
ESI: 0
Ethernet-tag: 0
IP address field:
sending: not used
receiving: used to populate the BD’s ARP/neighbor table
Label-1: VNI
Label-2: not used
BGP encapsulation extended community with tunnel type set to VXLAN
MAC mobility extended community: seq=0, sticky=1 (only when MAC NAT is enabled)
Type 3 inclusive multicast Ethernet tag route: originating router address: system interface address
BGP encapsulation extended community route with tunnel type set to VXLAN
PMSI tunnel attributes include:
flags: 0
tunnel type: ingress replication
MPLS label:
sending: local VNI
receiving: remote VNI
tunnel ID: VXLAN VTEP
sending: VTEP of the corresponding ISA
receiving: remote flooding destination
The VXLAN packet is forwarded in the base routing instance