Associate each software-defined network component on the left with its primary architectural function within a Cisco enterprise campus fabric on the right.
- Underlay NetworkProvides physical L3 IP reachability and routing protocols (such as IS-IS or OSPF) to transport infrastructure traffic.
- VXLAN HeaderCarries the Virtual Network Identifier (VNI) and group policy tags across overlay data plane tunnels.
- LISP Map-Server / Map-ResolverMaintains the central database mapping host Endpoint Identifiers (EIDs) to Routing Locators (RLOCs).
- Fabric Edge NodeOnboards end devices and operates as a VXLAN Tunnel Endpoint (VTEP) at the fabric boundary.
Cevap
Underlay Network matches physical L3 IP reachability provider; VXLAN Header matches VNI and group policy tag carrier; LISP Map-Server / Map-Resolver matches central database mapping EIDs to RLOCs; Fabric Edge Node matches onboarding end devices and operating as a VTEP.
Each software-defined component occupies a distinct layer: the Underlay Network handles physical Layer 3 routing between nodes; the VXLAN Header encapsulates data packets with Virtual Network Identifiers (VNIs); the LISP Map-Server/Map-Resolver functions as the control plane tracking host EIDs to switch RLOCs; and the Fabric Edge Node connects endpoints while acting as a VTEP.
Adım Adım Çözüm
Anahtar Kavram
Distinguishing roles across Underlay transport, VXLAN data plane encapsulation, LISP control plane mapping, and Fabric Edge VTEPs