Juniper JN0-460 Exam Dumps

InEVPN-VXLAN,BUM (Broadcast, Unknown unicast, and Multicast)traffic is handled differently than unicast traffic. EVPN provides two main forwarding mechanisms to distribute BUM traffic betweenVTEPs(VXLAN Tunnel Endpoints):

''BUM traffic in EVPN-VXLAN fabrics is replicated using eitheringress replicationorunderlay multicast(PIM-based). Both methods ensure that broadcast and unknown unicast frames reach all remote VTEPs within the same VXLAN segment.''

Option A:Incorrect --- static routes are unrelated to BUM forwarding.

Option B:Incorrect --- BGP is thecontrol plane, not a data-plane forwarding method.

Option C:Correct---Ingress replicationreplicates BUM packets to all remote VTEPs in the same VNI using unicast tunnels.

Option D:Correct---Underlay replication (multicast)uses multicast groups in the IP underlay to distribute BUM frames efficiently.

Juniper Mist AI for Wired -- EVPN-VXLAN Forwarding Architecture

Junos OS EVPN-VXLAN Deployment and Operations Guide

Juniper Validated Design -- EVPN-VXLAN Control and Data Plane Behavior

Comprehensive and Detailed Explanation From Exact Extract:

InEVPN-VXLANarchitectures, theVXLAN 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 aVTEPthat 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

According toJuniper Mist Wired Assurance documentation, three built-in diagnostic tools available for testing switch functionality areBounce Port,Ping, andCable Test.

Bounce Portallows you to disable and re-enable a port to reset connectivity.

Pingverifies Layer 3 reachability between the switch and target IPs.

Cable Testperforms diagnostics to detect wiring faults, impedance mismatches, or cable lengths.

These tools are accessed directly from theSwitch Testing Toolssection in the Mist dashboard and are available for EX Series and QFX Series switches onboarded to the Mist cloud.

In theJuniper Mist AI for Wired dashboard, administrators can select one or more switch ports (as shown in the exhibit, e.g., port ge-0/0/25 on an EX4100-48MP). Once configuration changes are made --- such as VLAN assignment, port profiles, PoE settings, or administrative state --- theSave buttonmust be clicked to confirm and apply those changes to the device.

''When making configuration changes in the Mist switch interface, the Save button must be used to confirm the modifications. Clicking Save applies the selected port settings to the switch through Mist Cloud.''

Option Ais incorrect: saving does not create a backup. Backups and snapshots are handled through Mist's configuration archive, not via the Save button.

Option Bis incorrect: Save does not reset configuration; instead, it commits changes.

Option Cis incorrect: there is no preview function tied to Save.

Option Dis correct: the Save button is explicitly forapplying configuration changesto the selected switch or port(s).

Juniper Mist AI for Wired -- Switch Port Configuration Guide

Juniper Mist AI for Wired -- Wired Assurance Administration Guide

Juniper Mist Documentation -- Managing Switch Interfaces

Creating a new site requires asite nameandtime zone.

Other parameters (like templates or location data) are optional but recommended for proper reporting.

Mist AI for Wired -- Site Creation Workflow

Create a Mist Account and Organization Documentation

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