H12-893_V1.0 Exam Dumps : HCIP-Data Center Network V1.0

In a network overlay, VXLAN (Virtual Extensible LAN) tunnels extend Layer 2 networks over a Layer 3 underlay, commonly implemented in Huawei’s data center solutions. The endpoints of a VXLAN tunnel are VXLAN Tunnel Endpoints (VTEPs), which encapsulate and decapsulate traffic.

VTEP Roles:VTEPs can be physical switches (e.g., Huawei CloudEngine series), virtual switches (e.g., Open vSwitch on a hypervisor), or routers with VXLAN support. The endpoints are defined by their IP addresses, not their physical nature.

Deployment Flexibility:In modern data centers, VXLAN tunnels often connect physical switches to virtualized environments where VTEPs reside on hypervisors or servers hosting VMs. For example, a VM’s vNIC might connect to a virtual switch (VTEP) that tunnels to a physical switch VTEP. Thus, both endpoints are not always physical switches; one or both can be virtual.

The statement isFALSE (B)because both endpoints of a VXLAN tunnel are not necessarily physical switches; they can include virtual VTEPs in hypervisors or other devices.References:Huawei HCIP-Data Center Network Training – VXLAN Overlay; CloudFabric VXLAN Deployment Guide.

VXLAN (Virtual Extensible LAN) is a network overlay technology that extends Layer 2 networks over a Layer 3 underlay, commonly implemented in Huawei’s CloudFabric data center solutions. To enable access to a VXLAN network, service access points (e.g., interfaces or sub-interfaces) must be configured on devices such as switches or routers acting as VXLAN Tunnel Endpoints (VTEPs). The question mentions two access modes: "Layer ? sub-interface" and "binding," with the task to fill in the layer acronym in uppercase letters.

Context Analysis:The missing layer is indicated by a "?" and is part of a sub-interface configuration. In networking, sub-interfaces are typically associated with Layer 3 (e.g., for VLAN tagging or VXLAN integration), where they handle IP routing or mapping to overlay networks.

Access Modes:

Layer 3 Sub-Interface:This mode involves configuring a sub-interface on a Layer 3 device (e.g., a router or Layer 3 switch) to terminate VXLAN tunnels and perform routing. The sub-interface is associated with a VNI (VXLAN Network Identifier) and often uses a Layer 3 protocol (e.g., BGP EVPN) to connect to the VXLAN overlay.

Binding:This likely refers to binding a VNI to a Bridge Domain (BD) or interface, a common practice in Huawei’s VXLAN configuration to map the overlay network to a physical or logical port. This can occur at Layer 2 or Layer 3, but the sub-interface context suggests Layer 3 involvement.

The question’s structure implies the layer number for the sub-interface mode, which isLayer 3in VXLAN contexts for routing and gateway functions. Thus, the acronym (digit) to enter is3.References:Huawei CloudFabric Data Center Network Solution – VXLAN Configuration Guide; HCIP-Data Center Network Training – VXLAN Access Methods.

Microsegmentation in Huawei’s data center networks (e.g., CloudFabric with SDN) divides Endpoint Groups (EPGs) to enforce fine-grained security policies. EPGs group endpoints (e.g., VMs) based on attributes. Let’s evaluate each option:

A. Operating system:This is true. The OS type (e.g., Linux, Windows) can be used to segment EPGs, enabling policy enforcement based on OS-specific security needs.TRUE.

B. VM name:This is true. VM names can be used as identifiers for microsegmentation, allowing policies to target specific VMs.TRUE.

C. IP address:This is true. IP addresses are commonly used to define EPG boundaries, especially for network-based segmentation.TRUE.

D. MAC address:This is true. MAC addresses can segment EPGs, particularly for Layer 2-based policies or device-specific isolation.TRUE.

All optionsA, B, C, and Dare valid conditions for microsegmentation to divide EPGs in Huawei’s implementation.References:Huawei CloudFabric Data Center Network Solution – Microsegmentation; HCIP-Data Center Network Training – EPG Configuration.