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Managing EX4000 Switches Using Juniper Mist™

Using Juniper Mist™ Wired Assurance AI-driven cloud service is the recommended way to manage EX4000 switches. Wired Assurance combines the power of Mist cloud management with AI and is the preferred way to onboard, configure, monitor and troubleshoot EX4000 switches at scale.

Before onboarding the EX4000 switches to Mist Cloud, complete the switch onboarding prerequisites such as subscribing to Juniper Mist Wired Assurance through the Juniper Mist portal, creating an organization, setting up sites, configuring your firewall device to allow Juniper Mist traffic, setting up certificates, configuring switch administrator roles and privileges etc.

After completing the switch onboarding prerequisites, you can onboard a single EX4000 switch to Mist Cloud using the Mist AI Mobile App. If you are onboarding multiple switches, use a web browser. If you are using Juniper Mist Access Points (APs), place the EX4000 switches at these sites to ensure interoperability.

Configuring EX4000 Switches Using Juniper Mist

It is recommended to manage EX4000 Switches exclusively through the Juniper Mist Cloud and not from the device’s CLI. You start off by mounting the EX4000 switches. If you have subscribed to Juniper Mist Wired Assurance you onboard the EX4000 switches to Mist Cloud, complete the switch onboarding prerequisites, and then configure the switches by creating a configuration template and apply it to your organization(s) and site(s). Switches in your organization(s) and site(s) inherit the configuration template settings. If required, you can override a switch’s configuration settings individually.

Broadly, the following are the configuration settings that can be applied to your organization(s) and site(s).

Table 1: Mist Configuration Overview

All Switches configuration

Management

Shared Elements

  • Radius

  • TACACS+

  • NTP

  • DNS settings

  • SNMP

  • Static routes

  • CLI configurations

  • OSPF

  • DHCP settings

  • Syslog settings

  • Port Mirroring

  • Routing Policy

  • Configuration Revert Timer

  • Root Password

  • Protection of Routing Engine

  • Local Users

  • Idle Timeout

  • Login Banner

  • Upgrade Junos OS

  • Create Recovery Snapshot for a Switch

  • Replace a Switch

  • Networks

  • Port Profiles

  • Dynamic Port Configuration

  • VRF
Note:

  • You can also apply rule-based configuration settings to switches.

  • You can apply switch-specific settings manually or in bulk that override the site/template settings.

  • You can issue set commands through the Mist portal to apply CLI configurations. You can also delete CLI configurations by using delete commands.

Monitoring EX4000 Switches using Mist

Mist provides various ways to monitor EX4000 Switches. You can view switch metrics and switch details, troubleshoot and test the switch, and view details of connected clients to the switches. The monitoring capabilities are summarized in the following table.

Table 2: Monitoring Options with Mist

Switch metrics

Switch details

Switch utilities

Wired Service Level Expectation

  • Switch-AP affinity

  • PoE compliance

  • VLANs indicator

  • Junos version compliance

  • Switch uptime

  • Port status and configuration

  • Clients or APs connected to each port

  • Switch insights

  • Testing tools—Ping, Traceroute, Cable Test, Bounce Port

  • Remote CLI access

  • Reboot switch

  • Send Switch Log to Mist

  • Upgrade Firmware

  • Create a switch configuration template

  • Snapshot Device

  • Download Junos Configuration

  • Replace Switch

  • Classifiers for successful user experiences

  • Classifiers for unsuccessful user experiences

  • Classifiers for successful switch health parameters

  • Classifiers for unsuccessful switch health parameters

  • Classifiers for successful switch bandwidth parameters

  • Classifiers for unsuccessful switch bandwidth parameters

Troubleshooting EX4000 Switches with Juniper Mist

Juniper Mist provides various capabilities to troubleshoot EX4000 switches.

Assessing network health with wired SLEs dashboard

Juniper Mist cloud continuously collects network telemetry data and uses machine learning to analyze the end-user experience. You can access this information through the Juniper Mist wired service-level expectation (SLE) dashboards, which help you assess the network's user experience and resolve any issues proactively. The SLE dashboards present information by way of classifiers for metrics such as user experiences, switch health, and switch bandwidth.

Using Marvis® Virtual Network Assistant to proactively resolve issues

Marvis Virtual Network Assistant is an AI-driven, interactive virtual network assistant that streamlines network operations, simplifies troubleshooting, and provides an enhanced user experience. With real-time network visibility, Marvis provides a comprehensive view of your network from an organizational level to a client level with detailed insights. Marvis leverages the Mist AI to identify issues proactively and provide recommendations to fix issues.

Troubleshooting Switches showing as disconnected on the Juniper Mist portal

If a switch shows as disconnected when it is online and reachable locally, you can troubleshoot the issue. You need console access or SSH access to the switch to perform the troubleshooting steps.

Troubleshooting switch to Juniper Mist Cloud connectivity with CloudX

Juniper CloudX, integrated natively into Junos OS, is an advanced architecture that ensures faster and secure communication between Juniper switches and the Mist cloud. It is responsible for creating a secure connection between the switch and the Mist cloud. CloudX-enabled switches can be monitored and managed by cloud services. You can check:

  • If a switch communicates with Mist cloud using CloudX by running some CLI commands on the switch.

  • If CloudX is running on the switch through the Juniper Mist portal

  • If CloudX is enabled on multiple switches by using the Juniper Mist portal

  • If Mist Cloud Daemon (mcd) and Junos Mist Daemon (jmd) are running. mcd is responsible for enabling communication between the switch and the cloud. It maintains a secure WebSocket connection to the terminator in the cloud. jmd is used for:

    • Generating periodic statistics for the device

    • Applying device configuration

    • Gathering device events

    • Initiating device functions (such as packet capture and software updates)

    • Returning results from requested functions (such as files and streamed data)

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