Juniper JN0-460 Exam Dumps

When a switch is successfully onboarded into Mist Cloud but shows ''Unassigned,'' it means the device has been claimed into the organization but has not yet been assigned to a specific site.

''After claiming switches into an organization, you must assign each switch to a site for it to transition from Unassigned to Connected state and begin receiving configuration and telemetry updates.''

Option A: Incorrect --- rescanning is not needed once the device is claimed.

Option B: Incorrect --- reboots are unnecessary for assignment recognition.

Option C: Incorrect --- these commands are for connectivity troubleshooting, not site assignment.

Option D: Correct --- assigning each switch to its intended site enables full Mist management and connectivity state.

Juniper Mist AI for Wired -- Switch Onboarding and Site Assignment Guide

Juniper Mist Cloud -- Device States and Adoption Workflow

Juniper Wired Assurance -- Site Management Overview

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Juniper's official Campus Fabric IP Clos design for Mist Wired Assurance defines that the 3-stage IP Clos topology eliminates the traditional distribution layer entirely. This architecture is intended for smaller campus environments that do not need an intermediate distribution layer between the access and core.

''Juniper's Wired Assurance supports 3-Stage and 5-Stage IP Clos deployments. The 3-Stage IP Clos is targeted towards deployments that do not require a Distribution Layer and have smaller scale requirements.''

Because the distribution layer is not present, the only hierarchical connection in a 3-stage campus fabric is between the core and access layers. Traffic is routed directly at the access layer, and each access switch acts as a Layer-3 gateway (IRB) for its VLANs.

''In a campus fabric IP Clos architecture, Mist provisions Layer-3 (L3) integrated routing and bridging (IRB) interfaces on the access layer. All the access switches are configured with the same IP address for each L3 subnet.''

Additionally, the Juniper documentation explains that point-to-point links are configured between layers, and in the case of the 3-stage design (with no distribution), this means between the core and access devices:

''The point-to-point links between each layer utilize /31 addressing to conserve addresses.''

Therefore, the correct statement is C: The core layer is connected to the access layer.

Options A and B incorrectly mention a distribution layer that does not exist in this topology.

Option D is incorrect because core (spine) devices in a Clos fabric are not interconnected with each other.

Juniper Mist AI for Wired -- Campus Fabric IP Clos Architecture Guide

Juniper Mist AI for Wired -- Campus Fabric IP Clos Workflow

Juniper Mist AI for Wired -- Configure Campus Fabric IP Clos

Juniper Validated Design -- Campus Fabric IP Clos Deployment Types

Comprehensive and Detailed Explanation From Exact Extract:

In EVPN-VXLAN architectures, the VXLAN Tunnel Endpoint (VTEP) is the logical interface responsible for encapsulating and de-encapsulating Layer 2 Ethernet frames into VXLAN packets.

Each participating switch --- typically the access or distribution node --- hosts a VTEP that maps local VLANs to VXLAN Network Identifiers (VNIs).

When a packet leaves a local VLAN, the VTEP encapsulates it in a VXLAN header and routes it through the underlay IP fabric.

When received at the destination VTEP, the frame is de-encapsulated and delivered to the appropriate local VLAN.

''VTEPs in an EVPN-VXLAN campus fabric perform MAC-to-VNI mapping and encapsulate/decapsulate traffic between virtualized network segments, allowing seamless Layer 2 and Layer 3 connectivity across an IP underlay.''

Juniper Mist AI for Wired -- Campus Fabric EVPN-VXLAN Overview

Juniper Validated Design (JVD): Mist AI Campus Fabric Deployment Guide

Junos OS EVPN and VXLAN Configuration Guide

Link Layer Discovery Protocol (LLDP) is a Layer 2 discovery protocol that allows network devices to advertise identity and capabilities to directly connected neighbors. While LLDP is useful for basic topology discovery, it has two key limitations in Wired Assurance client identification:

''LLDP operates at Layer 2 between directly connected devices and must be explicitly enabled on all participating network elements to provide neighbor information. It cannot discover devices beyond the first physical hop.''

Option A: Correct --- LLDP must be configured and enabled on each network device to function.

Option B: Incorrect --- LLDP itself is scalable but limited to direct adjacency.

Option C: Correct --- LLDP only works between directly connected devices.

Option D: Incorrect --- not all clients support LLDP; however, the question asks for limitations of using LLDP, not lack of support.

Juniper Mist AI for Wired -- LLDP Client Discovery Overview

Junos OS Documentation -- LLDP Protocol Operation

Juniper Mist Wired Assurance -- Device Identification and Topology Guide

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EVPN, when used with VXLAN, leverages BGP MPLS/VXLAN control plane mechanisms. To prevent overlapping IP prefixes between different tenants or sites, EVPN uses a Route Distinguisher (RD).

''In EVPN-VXLAN, the route distinguisher (RD) makes routes unique when overlapping IP prefixes or MAC addresses are advertised between multiple tenants or sites.''

Option A (designated forwarder) applies to multi-homing in EVPN, not prefix uniqueness.

Option B (Layer 2 gateway) does not prevent IP overlap; it bridges VLANs.

Option D (ESI) is used for identifying multi-homed Ethernet segments, not to differentiate overlapping subnets.

Option C (Route Distinguisher) is correct, as it uniquely identifies routes even if the IP addresses are the same across sites.

Juniper Mist AI for Wired -- EVPN-VXLAN Overview

Juniper Validated Design -- EVPN-VXLAN Fundamentals

Junos OS EVPN Configuration Guide

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