Guidelines And Limitations For Vxlan Bgp Evpn And Otv Interoperation; Information About Vxlan Bgp Evpn And Otv Interoperation - Cisco Nexus 7000 Series Configuration Manual

Guidelines and Limitations for VXLAN BGP EVPN and OTV Interoperation

Guidelines and Limitations for VXLAN BGP EVPN and OTV
Interoperation
• A unique, primary gateway IP address should be configured on each BDI for sending ARP requests over
• For Layer 3 multicast traffic, an external, centralized Layer 3 multicast gateway should be enabled.
• For seamless mobility across legacy and VXLAN BGP EVPN fabrics, the anycast gateway MAC address
• Only OTV unicast control network (OTV Adjacency Server function) is supported.
• On the same physical Join interface, regular OTV overlays cannot interoperate with OTV overlays that
• In an OTV with BDI single box solution, the ARP proxy function option is not supported in the Cisco
• Support for this feature is limited to 3 OTV datacenter sites, for the 8.2(1) release.
• For OTV overlays, only Generic Routing Encapsulation (GRE) encapsulation is supported for the 8.2(1)

Information About VXLAN BGP EVPN and OTV Interoperation

Two VXLAN BGP EVPN datacenters can be connected with each other and to a legacy datacenter (Sample
topology 1). A VXLAN BGP EVPN datacenter can be connected to a legacy datacenter and to a datacenter
with a OTV+BDI one box solution implemented in the form of a vPC pair of border switches (Sample topology
2). In either topology, the Layer 3 aggregation switch in the legacy datacenter performs the role of an external,
centralized multicast gateway for Layer 3 multicast traffic across the datacenters. The two sample topologies
and workflow for the VXLAN BGP EVPN and OTV interoperation in them:
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OTV. A secondary anycast IP address is configured on each BDI for sending ARP requests over EVPN.
Layer 3 multicast routing support is not available for the VXLAN BGP EVPN and OTV Interoperation
feature in release 8.2(1). However, Layer 3 multicast traffic within a VXLAN BGP EVPN fabric is
supported as usual.
used in the VXLAN fabric should be configured as the HSRP static MAC address in the legacy fabric.
are stitched to VXLAN overlays. However, an OTV overlay and an OTV+VXLAN overlay can be
enables on separate physical Join interfaces.
NX-OS 8.2(1) release.
release.
VXLAN BGP EVPN and OTV Interoperation