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Release Notes: Junos® OS Release 18.4R3 for the ACX Series, EX Series, MX Series, NFX Series, PTX Series, QFX Series, SRX Series, and Junos Fusion

 

13 January 2021

Table of Contents

Introduction
Junos OS Release Notes for ACX Series
New and Changed Features
New and Changed Features: 18.4R3
New and Changed Features: 18.4R2
Interfaces and Chassis
Software Installation and Upgrade
Timing and Synchronization
New and Changed Features: 18.4R1
Authentication, Authorizing, and Accounting (AAA)
Interfaces and Chassis
MPLS
Platform and Infrastructure
Routing Protocols
Timing and Synchronization
VPNs
Changes in Behavior and Syntax
Changes in Behavior and Syntax: 18.4R3
Interfaces and Chassis
Routing Protocols
Changes in Behavior and Syntax: 18.4R2
Interfaces and Chassis
Operation, Administration, and Maintenance (OAM)
Changes in Behavior and Syntax: 18.4R1
Network Management and Monitoring
Known Behavior
General Routing
Routing Protocols
Known Issues
General Routing
Resolved Issues
Resolved Issues:18.4R3
General Routing
Class of Service (CoS)
Interfaces and Chassis
Layer 2 Ethernet Services
Platform and Infrastructure
Routing Protocols
Resolved Issues:18.4R2
Class of Service (CoS)
General Routing
Interfaces and Chassis
MPLS
Services Applications
Resolved Issues:18.4R1
General Routing
Platform and Infrastructure
Documentation Updates
Migration, Upgrade, and Downgrade Instructions
Upgrade and Downgrade Support Policy for Junos OS Releases
Junos OS Release Notes for EX Series Switches
New and Changed Features
Release 18.4R3 New and Changed Features
Release 18.4R2-S3 New and Changed Features
EVPNs
Release 18.4R2 New and Changed Features
EVPNs
Software Defined Networking
Release 18.4R1 New and Changed Features
Hardware
Authentication, Authorization and Accounting (AAA) (RADIUS)
EVPNs
Forwarding and Sampling
Interfaces and Chassis
Junos Telemetry Interface
Multicast
Port Security
Virtual Chassis
VPNs
Changes in Behavior and Syntax
Changes in Behavior and Syntax: 18.4R3
Routing Protocols
Changes in Behavior and Syntax: 18.4R2
Interfaces and Chassis
Security
Changes in Behavior and Syntax: 18.4R1
Interfaces and Chassis
Network Management and Monitoring
Security
Known Behavior
Class of Service (CoS)
EVPN
General Routing
Infrastructure
Routing Protocols
Virtual Chassis
Known Issues
Authentication and Access Control
General Routing
Infrastructure
Interfaces and Chassis
Multicast
Network Management and Monitoring
Platform and Infrastructure
Routing Protocols
Subscriber Access Management
Resolved Issues
Resolved Issues: 18.4R3
Resolved Issues
General Routing
Authentication and Access Control
Class of Service (CoS)
EVPN
Forwarding and Sampling
Infrastructure
Interfaces and Chassis
J-Web
Junos Fusion Enterprise
Junos Fusion Satellite Software
Layer 2 Features
Layer 2 Ethernet Services
Platform and Infrastructure
Routing Protocols
User Interface and Configuration
Virtual Chassis
VPNs
Resolved Issues: 18.4R2
EVPN
General Routing
Infrastructure
Interfaces and Chassis
Junos Fusion Enterprise
Layer 2 Features
Layer 3 Features
Layer 2 Ethernet Services
Network Management and Monitoring
Platform and Infrastructure
Routing Protocols
Subscriber Access Management
Resolved Issues: 18.4R1
General Routing
EVPN
High Availability (HA) and Resiliency
Infrastructure
Junos Fusion Enterprise
Layer 2 Features
Network Management and Monitoring
Platform and Infrastructure
Routing Protocols
Documentation Updates
Migration, Upgrade, and Downgrade Instructions
Upgrade and Downgrade Support Policy for Junos OS Releases
Junos OS Release Notes for Junos Fusion Enterprise
New and Changed Features
Changes in Behavior and Syntax
Known Behavior
Known Issues
Junos fusion for the enterprise
Resolved Issues
Resolved Issues: Release 18.4R3
Resolved Issues: Release 18.4R2
Resolved Issues: Release 18.4R1
Documentation Updates
Migration, Upgrade, and Downgrade Instructions
Basic Procedure for Upgrading Junos OS on an Aggregation Device
Upgrading an Aggregation Device with Redundant Routing Engines
Preparing the Switch for Satellite Device Conversion
Converting a Satellite Device to a Standalone Switch
Upgrade and Downgrade Support Policy for Junos OS Releases
Downgrading from Junos OS
Junos OS Release Notes for Junos Fusion Provider Edge
New and Changed Features
Release 18.4R3 New and Changed Features
Release 18.4R2 New and Changed Features
Release 18.4R1 New and Changed Features
Class of Service (CoS)
Junos Fusion
Changes in Behavior and Syntax
Release 18.4R3 Changes in Behavior and Syntax
Release 18.4R2 Changes in Behavior and Syntax
Release 18.4R1 Changes in Behavior and Syntax
Known Behavior
Junos Fusion Provider Edge
Known Issues
Junos Fusion Provider Edge
Junos Fusion Satellite Software
Resolved Issues
Resolved Issues: 18.4R3
Junos Fusion Provider Edge
Resolved Issues: 18.4R2
Junos Fusion Provider Edge
Junos Fusion Satellite Software
Resolved Issues: 18.4R1
Junos Fusion Provider Edge
Junos Fusion Satellite Software
Documentation Updates
Migration, Upgrade, and Downgrade Instructions
Basic Procedure for Upgrading an Aggregation Device
Upgrading an Aggregation Device with Redundant Routing Engines
Preparing the Switch for Satellite Device Conversion
Converting a Satellite Device to a Standalone Device
Upgrading an Aggregation Device
Upgrade and Downgrade Support Policy for Junos OS Releases
Downgrading from Junos OS Release 18.
Junos OS Release Notes for MX Series 5G Universal Routing Platform
New and Changed Features
New and Changed Features: 18.4R3
Release 18.4R2 New and Changed Features
Network Management and Monitoring
Subscriber Management and Services
Release 18.4R1 New and Changed Features
Authentication, Authorization and Accounting (AAA) (RADIUS)
Class of Service (CoS)
EVPN
Forwarding and Sampling
General Routing
Hardware
High Availability and Resiliency
Interfaces and Chassis
Junos Telemetry Interface
Layer 2 VPN
MPLS
Network Management and Monitoring
Operation, Administration, and Maintenance (OAM)
Routing Policy and Firewall Filters
Routing Protocols
Services Applications
Software Defined Networking (SDN)
Subscriber Management and Services
System Management
Timing and Synchronization
VPN
Changes in Behavior and Syntax
Release 18.4R3-S6 Changes in Behavior and Syntax
Infrastructure
Platform and Infrastructure
Release 18.4R3 Changes in Behavior and Syntax
Interfaces And Chassis
Junos OS XML API and Scripting
Junos Telemetry Interface
Platform and Infrastructure
Routing Protocols
Services Applications
Subscriber Management And Services
Release 18.4R2-S1 Changes in Behavior and Syntax
Software Defined Networking (SDN)
Release 18.4R2 Changes in Behavior and Syntax
EVPN
General Routing
Interfaces and Chassis
MPLS
Operation, Administration, and Maintenance (OAM)
Services Applications
Subscriber Management and Services
Release 18.4R1 Changes in Behavior and Syntax
General Routing
Interfaces and Chassis
MPLS
Network Management and Monitoring
Routing Protocols
Security
Software Defined Networking (SDN)
Software Installation and Upgrade
Subscriber Management and Services
Known Behavior
General Routing
Forwarding and Sampling
Interfaces and Chassis
Platform And Infrastructure
Routing Protocols
Services Applications
Subscriber Management And Services
Known Issues
Class of Service (CoS)
EVPN
Forwarding and Sampling
General Routing
High Availability and Resiliency
Infrastructure
Interfaces and Chassis
Layer 2 Ethernet Services
MPLS
Network Management and Monitoring
Platform and Infrastructure
Routing Protocols
Services Applications
Subscriber Access Management
User Interface and Configuration
VPNs
Resolved Issues
Resolved Issues: 18.4R3
Application Layer Gateways (ALGs)
Class of Service (CoS)
EVPN
Forwarding and Sampling
General Routing
Infrastructure
Interfaces and Chassis
J-Web
Junos Fusion Provider Edge
Layer 2 Features
Layer 2 Ethernet Services
MPLS
Network Address Translation (NAT)
Network Management and Monitoring
Platform and Infrastructure
Routing Policy and Firewall Filters
Routing Protocols
Services Applications
Subscriber Access Management
User Interface and Configuration
VPNs
Resolved Issues: 18.4R2
Application Layer Gateways (ALGs)
Authentication and Access Control
Class of Service (CoS)
EVPN
Forwarding and Sampling
General Routing
Infrastructure
Interfaces and Chassis
Layer 2 Features
Layer 2 Ethernet Services
MPLS
Network Management and Monitoring
Platform and Infrastructure
Routing Policy and Firewall Filters
Routing Protocols
Services Applications
Software Installation and Upgrade
Subscriber Access Management
User Interface and Configuration
VPNs
Resolved Issues: 18.4R1
Application Layer Gateways (ALGs)
Authentication and Access Control
Class of Service (CoS)
EVPN
Flow-based and Packet-based Processing
Forwarding and Sampling
General Routing
High Availability (HA) and Resiliency
Interfaces and Chassis
Layer 2 Ethernet Services
Layer 2 Features
MPLS
Platform and Infrastructure
Routing Policy and Firewall Filters
Routing Protocols
Services Applications
Subscriber Access Management
VPNs
Documentation Updates
Subscriber Management Provisioning Guide
Subscriber Management VLANs Interfaces Guide
Migration, Upgrade, and Downgrade Instructions
Basic Procedure for Upgrading to Release 18.4
Procedure to Upgrade to FreeBSD 11.x based Junos OS
Procedure to Upgrade to FreeBSD 6.x based Junos OS
Upgrade and Downgrade Support Policy for Junos OS Releases
Upgrading a Router with Redundant Routing Engines
Downgrading from Release 18.4
Junos OS Release Notes for NFX Series
New and Changed Features
New and Changed Features: 18.4R3
New and Changed Features: 18.4R2
New and Changed Features: 18.4R1
Virtual Network Functions (VNFs)
Changes in Behavior and Syntax
Factory-default Configuration
Known Behavior
Interfaces
Platform and Infrastructure
Known Issues
CoS
Interfaces
Platform and Infrastructure
Virtual Network Functions (VNFs)
Resolved Issues
Resolved Issues:18.4R3
Interfaces
High Availability
Platform and Infrastructure
Protocols
Resolved Issues:18.4R2
Interfaces
Platform and Infrastructure
Resolved Issues:18.4R1
Documentation Updates
Migration, Upgrade, and Downgrade Instructions
Upgrade and Downgrade Support Policy for Junos OS Releases
Basic Procedure for Upgrading to Release 18.4
Junos OS Release Notes for PTX Series Packet Transport Routers
New and Changed Features
Release 18.4R3 New and Changed Features
Release 18.4R2 New and Changed Features
Release 18.4R1 New and Changed Features
Hardware
Authentication, Authorization and Accounting (AAA) (RADIUS)
Class of Service (CoS)
Forwarding and Sampling
Interfaces and Chassis
Junos Telemetry Interface
Layer 2 Features
Layer 3 Features
MPLS
Network Management and Monitoring
Port Security
Routing Protocols
Security
Services Applications
System Management
VPN
Changes in Behavior and Syntax
Release 18.4R3 Changes in Behavior and Syntax
Routing Protocols
Release 18.4R2-S1 Changes in Behavior and Syntax
Software Defined Networking
Release 18.4R2 Changes in Behavior and Syntax
General Routing
Interfaces and Chassis
MPLS
Network Management and Monitoring
Routing Policy and Firewall Filters
Release 18.4R1 Changes in Behavior and Syntax
Interfaces and Chassis
Network Management and Monitoring
Known Behavior
Interfaces and Chassis
General Routing
User Interface and Configuration
Known Issues
Class of Service (CoS)
General Routing
Interfaces and Chassis
MPLS
Routing Protocols
Resolved Issues
Resolved Issues: 18.4R3
Forwarding and Sampling
General Routing
Infrastructure
Interfaces and Chassis
Layer 2 Ethernet Services
MPLS
Platform and Infrastructure
Routing Protocols
VPNs
Resolved Issues: 18.4R2
General Routing
Infrastructure
Interfaces and Chassis
MPLS
Platform and Infrastructure
Routing Protocols
Resolved Issues: 18.4R1
Infrastructure
Interfaces and Chassis
MPLS
Platform and Infrastructure
Documentation Updates
Migration, Upgrade, and Downgrade Instructions
Basic Procedure for Upgrading to Release 18.4
Upgrade and Downgrade Support Policy for Junos OS Releases
Upgrading a Router with Redundant Routing Engines
Junos OS Release Notes for the QFX Series
New and Changed Features
New and Changed Features: 18.4R3
New and Changed Features: 18.4R2
EVPNs
Software Defined Networking
New and Changed Features: 18.4R1
Authentication, Authorization, and Accounting (AAA)
Class of Service (CoS)
EVPNs
High Availability (HA) and Resiliency
Junos on White Box
Operation, Administration, and Maintenance (OAM)
System Management
VPNs
Changes in Behavior and Syntax
Changes in Behavior and Syntax: 18.4R3-S4
Platform and Infrastructure
Changes in Behavior and Syntax: 18.4R3
Junos Telemetry Interface
Routing Protocols
Network Management and Monitoring
Changes in Behavior and Syntax: 18.4R2-S1
Software-Defined Networking (SDN)
Changes in Behavior and Syntax: 18.4R2
EVPNs
Interfaces and Chassis
Security
Services Applications
Changes in Behavior and Syntax: 18.4R1
Interfaces and Chassis
Network Management and Monitoring
Known Behavior
Class of Service (CoS)
EVPN
Infrastructure
Interfaces and Chassis
Layer 2 Features
MPLS
Platform and Infrastructure
Routing Protocols
Virtual Chassis
Known Issues
Class of Service (CoS)
EVPN
Forwarding and Sampling
Infrastructure
Interfaces and Chassis
Layer 2 Features
Layer 2 Ethernet Services
MPLS
Platform and Infrastructure
Routing Protocols
Resolved Issues
Resolved Issues: 18.4R3
Authentication and Access Control
Class of Service (CoS)
EVPN
Interfaces and Chassis
Layer 2 Features
Layer 2 Ethernet Services
MPLS
Platform and Infrastructure
Routing Protocols
User Interface and Configuration
Resolved Issues: 18.4R2
Class of Service (CoS)
EVPN
Forwarding and Sampling
General Routing
Interfaces and Chassis
Junos Fusion Satellite Software
Layer 2 Ethernet Services
Layer 2 Features
Network Management and Monitoring
Routing Protocols
Spanning Tree Protocols
Resolved Issues: 18.4R1
EVPN
General Routing
Interfaces and Chassis
Layer 2 Features
MPLS
Network Management and Monitoring
Platform and Infrastructure
Routing Protocols
User Interface and Configuration
Documentation Updates
Migration, Upgrade, and Downgrade Instructions
Upgrading Software on QFX Series Switches
Installing the Software on QFX10002-60C Switches
Installing the Software on QFX10002 Switches
Upgrading Software from Junos OS Release 15.1X53-D3X to Junos OS Release 15.1X53-D60, 15.1X53-D61.7, 15.1X53-D62, and 15.1X53-D63 on QFX10008 and QFX10016 Switches
Installing the Software on QFX10008 and QFX10016 Switches
Performing a Unified ISSU
Preparing the Switch for Software Installation
Upgrading the Software Using Unified ISSU
Upgrade and Downgrade Support Policy for Junos OS Releases
Junos OS Release Notes for SRX Series
New and Changed Features
Release 18.4R3 New and Changed Features
Release 18.4R2-S1 New and Changed Features
Chassis Clustering
Release 18.4R2 New and Changed Features
Release 18.4R1 New and Changed Features
Application Security
Chassis Cluster
Flow-Based and Packet-Based Processing
General Packet Radio Service (GPRS)
Interfaces and Chassis
Intrusion Detection and Protection (IDP)
Logical Systems and Tenant Systems
Network Management and Monitoring
Routing Protocols
Security
Juniper Sky Advanced Threat Prevention
Software Licensing
UTM
VPN
Changes in Behavior and Syntax
Release 18.4R3 Changes in Behavior and Syntax
Authentication and Access Control
Interfaces and Chassis
Juniper Sky ATP
Unified Threat Management
VPNs
Release 18.4R2 Changes in Behavior and Syntax
Application Security
Network Management and Monitoring
VPN
Release 18.4R1-S2 Changes in Behavior and Syntax
VPN
Release 18.4R1 Changes in Behavior and Syntax
Application Security
Chassis Cluster
Flow-Based and Packet-Based Processing
Installation and Upgrade
Network Management and Monitoring
UTM
Known Behavior
Flow-Based and Packet-Based Processing
Interfaces and Chassis
J-Web
Platform and Infrastructure
Unified Threat Management (UTM)
VPNs
Known Issues
Chassis Cluster
Class of Service (CoS)
Flow-Based and Packet-Based Processing
Interfaces and Chassis
Intrusion Detection and Prevention (IDP)
J-Web
Network Management and Monitoring
Platform and Infrastructure
Routing Policy and Firewall Filters
Unified Threat Management (UTM)
VPNs
Resolved Issues
Resolved Issues: 18.4R3
Application Layer Gateways (ALGs)
Authentication and Access Control
Application Security
Chassis CLustering
Class of Service (CoS)
Flow-Based and Packet-Based Processing
Install and Upgrade
Interfaces and Chassis
Intrusion Detection and Prevention (IDP)
J-Web
Layer 2 Ethernet Services
Network Address Translation (NAT)
Network Management and Monitoring
Platform and Infrastructure
Routing Policy and Firewall Filters
Routing Protocols
Services Applications
Unified Threat Management (UTM)
VPNs
Resolved Issues: 18.4R2
Application Firewall
Application Layer Gateways (ALGs)
Chassis Clustering
Flow-Based and Packet-Based Processing
Interfaces and Chassis
Intrusion Detection and Prevention (IDP)
Installation and Upgrade
J-Web
Logical and Tenant Systems
Multiprotocol Label Switching (MPLS)
Network Address Translation (NAT)
Network Management and Monitoring
Platform and Infrastructure
Routing Policy and Firewall Filters
Unified Threat Management (UTM)
User Interface and Configuration
VPNs
Resolved Issues: 18.4R1
Application Layer Gateways (ALGs)
Chassis Cluster
Class of Service (CoS)
Command-Line Interface (CLI)
Flow-Based and Packet-Based Processing
Interfaces and Chassis
Intrusion Detection and Prevention (IDP)
J-Web
Logical Systems
Network Address Translation (NAT)
Network Management and Monitoring
Platform and Infrastructure
Routing Policy and Firewall Filters
Routing Protocols
Services Applications
System Logs
Unified Threat Management (UTM)
VPNs
Documentation Updates
Migration, Upgrade, and Downgrade Instructions
Upgrade and Downgrade Support Policy for Junos OS Releases and Extended End-Of-Life Releases
Upgrading Using ISSU
Licensing
Compliance Advisor
Finding More Information
Documentation Feedback
Requesting Technical Support
Revision History