Chapter 9
Routed Overlay and Host-Routed Bridging
The previous chapter introduced edge-routed bridging, with routing distributed to the leafs using an anycast distributed gateway design. With such a design, different routing models such as asymmetric IRB and symmetric IRB can be implemented, enabling routing between VNIs while still retaining the capability to extend a Layer 2 VLAN over the EVPN VXLAN fabric as needed.
This chapter takes a deeper look at the routed overlay architecture, typically used when there is no need for Layer 2 extension and traffic is routed from the hosts themselves. In addition, this chapter explores the host-routed bridging design where VXLAN functionality is moved to the hosts themselves.
Overview of a Routed Overlay ...
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