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Release Notes: Junos® OS Release 19.2R3 for the ACX Series, EX Series, MX Series, NFX Series, PTX Series, QFX Series, SRX Series, and Junos Fusion

 

7 October 2021

Table of Contents

Introduction
Junos OS Release Notes for ACX Series
What's New
What's New in Release 19.2R3
What's New in Release 19.2R2
What's New in Release 19.2R1-S1
Routing Protocols
What's New in Release 19.2R1
Class of Service (CoS)
EVPN
Interfaces and Chassis
Junos Telemetry Interface
Layer 3 Features
Network Management and Monitoring
Software Installation and Upgrade
System Management
What's Changed
What’s Changed in 19.2R3-S1
General Routing
What’s Changed in 19.2R3
General Routing
Juniper Extension Toolkit (JET)
What’s Changed in 19.2R2
Interfaces and Chassis
Operation, Administration, and Maintenance (OAM)
Routing Protocols
What’s Changed in 19.2R1
Interfaces and Chassis
Network Management and Monitoring
VLAN Infrastructure
Known Limitations
General Routing
Open Issues
General Routing
MPLS
Resolved Issues
Resolved Issues: 19.2R3
General Routing
MPLS
Routing Protocols
VPNs
Resolved Issues: 19.2R2
Class of Service (CoS)
General Routing
Interfaces and Chassis
Layer 2 Ethernet Services
Platform and Infrastructure
Routing Protocols
VPN
Resolved Issues: 19.2R1-S1
General Routing
Resolved Issues: 19.2R1
Class of Service (CoS)
General Routing
Documentation Updates
Installation and Upgrade Guide
Migration, Upgrade, and Downgrade Instructions
Upgrade and Downgrade Support Policy for Junos OS Releases
Junos OS Release Notes for EX Series Switches
What’s New
What’s New in Release 19.2R3
What’s New in Release 19.2R2
What’s New in Release 19.2R1-S1
Routing Protocols
What’s New in Release 19.2R1
Authentication, Authorization, and Accounting (AAA)
Dynamic Host Configuration Protocol
EVPN
JWeb
Layer 2 Features
Multicast
Network Management and Monitoring
Port Security
System Management
What’s Changed
What’s Changed in Release 19.2R3
General Routing
Juniper Extension Toolkit (JET)
What’s Changed in Release 19.2R2
Interfaces and Chassis
Layer 2 Feature
Multicast
Routing Protocols
What’s Changed in Release 19.2R1
Interfaces and Chassis
Network Management and Monitoring
VLAN Infrastructure
Known Limitations
EVPN
Platform and Infrastructure
Open Issues
Authentication and Access Control
Infrastructure
Interfaces and Chassis
Junos Fusion for Enterprise
Layer 2 Features
Network Management and Monitoring
Platform and Infrastructure
Routing Protocols
Resolved Issues
Resolved Issues: 19.2R3
Authentication and Access Control
EVPN
Infrastructure
Junos Fusion Satellite Software
Layer 2 Ethernet Services
MPLS
Platform and Infrastructure
Routing Protocols
Resolved Issues: 19.2R2
Class of Service (CoS)
EVPN
Forwarding and Sampling
General Routing
Infrastructure
Interfaces and Chassis
J-Web
Junos Fusion for Enterprise
Layer 2 Features
Layer 2 Ethernet Services
Platform and Infrastructure
Routing Protocols
User Interface and Configuration
Virtual Chassis
VPNs
Resolved Issues: 19.2R1
Authentication and Access Control
EVPN
General Routing
Infrastructure
Interfaces and Chassis
Junos Fusion for Enterprise
Layer 2 Ethernet Services
Network Management and Monitoring
Platform and Infrastructure
Routing Protocols
Software Installation and Upgrade
Subscriber Access Management
Documentation Updates
Installation and Upgrade
Migration, Upgrade, and Downgrade Instructions
Upgrade and Downgrade Support Policy for Junos OS Releases
Junos OS Release Notes for Junos Fusion Enterprise
What’s New
What's New in Release 19.2R3
What's New in Release 19.2R2
What's New in Release 19.2R1
What’s Changed
What’s Changed in 19.2R3
What’s Changed in 19.2R2
What’s Changed in 19.2R1
Known Limitations
Open Issues
Junos fusion for enterprise
Resolved Issues
Resolved Issues: 19.2R3
Resolved Issues: 19.2R2
Resolved Issues: 19.2R1
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
What's New
What’s New in Release 19.2R3
What’s New in Release 19.2R2
What’s New in Release 19.2R1
Spanning-Tree Protocols
What’s Changed
Known Limitations
Open Issues
Junos Fusion Provider Edge
Resolved Issues
Resolved Issues: 19.2R3
Junos Fusion Provider Edge
Junos Fusion Satellite Software
Resolved Issues: 19.2R2
Junos Fusion Satellite Software
Resolved Issues: 19.2R1
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 19.2
Junos OS Release Notes for MX Series 5G Universal Routing Platform
What’s New
What’s New in 19.2R3
What’s New in 19.2R2
Junos OS XML, API, and Scripting
Network Management and Monitoring
Routing Protocols
Subscriber Management and Services
What’s New in 19.2R1-S4
Interfaces and Chassis
Services Applications
What’s New in 19.2R1-S1
MPLS
Routing Protocols
What’s New in 19.2R1
Hardware
Authentication, Authorization and Accounting (AAA) (RADIUS)
EVPN
Forwarding and Sampling
High Availability (HA) and Resiliency
Interfaces and Chassis
Junos OS XML API and Scripting
Junos Telemetry Interface
Layer 2 VPN
Layer 2 Features
Layer 3 Features
MPLS
Network Management and Monitoring
Port Security
Routing Policy and Firewall Filters
Routing Protocols
Security
Services Applications
Software Defined Networking
Software Installation and Upgrade
Subscriber Management and Services
System Management
Timing and Synchronization
What's Changed
What’s Changed in Release 19.2R3-S1
Infrastructure
What’s Changed in Release 19.2R3
General Routing
Juniper Extension Toolkit (JET)
Network Management and Monitoring
Routing Protocols
Services Applications
Subscriber Management and Services
What’s Changed in Release 19.2R2
General Routing
Junos OS XML API and Scripting
Interfaces and Chassis
MPLS
Network Management and Monitoring
OAM
Platform and Infrastructure
Routing Protocols
Services Applications
Software Defined Networking (SDN)
Subscriber Management and Services
What’s Changed in Release 19.2R1
EVPN
Interfaces and Chassis
MPLS
Network Management and Monitoring
Routing Policy and Firewall Filters
Routing Protocols
Services Applications
Software Defined Networking
Subscriber Management and Services
VLAN Infrastructure
Known Limitations
General Routing
Interfaces and Chassis
Platform and Infrastructure
Routing Protocols
Open Issues
EVPN
Forwarding and Sampling
General Routing
Infrastructure
Interfaces and Chassis
Junos Fusion for Provider Edge
Layer 2 Features
Layer 2 Ethernet Services
MPLS
Network Management and Monitoring
Platform and Infrastructure
Routing Protocols
User Interface and Configuration
VPNs
Resolved Issues
Resolved Issues: 19.2R3
Class of Service (CoS)
EVPN
Forwarding and Sampling
General Routing
Infrastructure
Interfaces and Chassis
J-Web
Junos Fusion Provider Edge
Junos Fusion Satellite Software
Layer 2 Features
Layer 2 Ethernet Services
MPLS
Platform and Infrastructure
Routing Protocols
Services Applications
Subscriber Access Management
User Interface and Configuration
VPNs
Resolved Issues: 19.2R2
Application Layer Gateways (ALGs)
Authentication and Access Control
Class of Service (CoS)
EVPN
Fault Management
Forwarding and Sampling
General Routing
Infrastructure
Interfaces and Chassis
J-Web
Junos Fusion for Enterprise
Layer 2 Ethernet Services
Layer 2 Features
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: 19.2R1
Application Layer Gateways (ALGs)
Authentication and Access Control
Class of Service (CoS)
EVPN
Flow-based and Packet-based Processing
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
Documentation Updates
Installation and Upgrade Guide
Subscriber Management Provisioning Guide
Migration, Upgrade, and Downgrade Instructions
Basic Procedure for Upgrading to Release 19.2
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 19.2
Junos OS Release Notes for NFX Series
What’s New
What’s New in Release 19.2R3
What’s New in Release 19.2R2
What’s New in Release 19.2R1
Architecture
Application Security
Virtual Network Functions
What’s Changed
What’s Changed in Release 19.2R3
What’s Changed in Release 19.2R2
What’s Changed in Release 19.2R1
Factory-default Configuration
Known Limitations
Interfaces
Platform and Infrastructure
Virtual Network Functions (VNFs)
Open Issues
Interfaces
Platform and Infrastructure
Routing Protocols
Virtual Network Functions (VNFs)
Resolved Issues
Resolved Issues: 19.2R3
Application Security
Interfaces
Platform and Infrastructure
Resolved Issues: 19.2R2
Class of Service (CoS)
High Availability
Interfaces
Layer 2 Ethernet Services
Platform and Infrastructure
Routing Protocols
Virtual Network Functions (VNFs)
Resolved Issues: 19.2R1
Interfaces
Platform and Infrastructure
Documentation Updates
Migration, Upgrade, and Downgrade Instructions
Upgrade and Downgrade Support Policy for Junos OS Releases
Basic Procedure for Upgrading to Release 19.2
Junos OS Release Notes for PTX Series Packet Transport Routers
What's New
What’s New in 19.2R3
What’s New in 19.2R2
Network Management and Monitoring
Routing Protocols
New and Changed Features: 19.2R1-S4
Interfaces and Chassis
Services Applications
New and Changed Features: 19.2R1-S1
MPLS
Routing Protocols
New and Changed Features: 19.2R1
Hardware
Interfaces and Chassis
Junos Telemetry Interface
MPLS
Network Management and Monitoring
Port Security
Routing Policy and Firewall Filters
Routing Protocols
Services Applications
Software Defined Networking (SDN)
Software Installation and Upgrade
System Management
What’s Changed
What’s Changed in Release 19.2R3
General Routing
Juniper Extension Toolkit (JET)
Routing Protocols
What’s Changed in Release 19.2R2
General Routing
Interfaces and Chassis
Routing Protocols
Software-Defined Networking
What’s Changed in Release 19.2R1-S5
MPLS
What’s Changed in Release 19.2R1
Interfaces and Chassis
MPLS
Network Management and Monitoring
Routing Protocols
Services Applications
Known Limitations
General Routing
Interfaces and Chassis
Open Issues
General Routing
Interfaces and Chassis
Layer 2 Ethernet Services
Routing Protocols
Resolved Issues
Resolved Issues: 19.2R3
General Routing
MPLS
Routing Protocols
Resolved Issues: 19.2R2
General Routing
Forwarding and Sampling
Infrastructure
Interfaces and Chassis
Layer 2 Ethernet Services
MPLS
Platform and Infrastructure
Routing Protocols
VPNs
Unresolved xref
Resolved Issues: 19.2R1
General Routing
Infrastructure
Interfaces and Chassis
MPLS
Platform and Infrastructure
Routing Protocols
Documentation Updates
Installation and Upgrade Guide
Migration, Upgrade, and Downgrade Instructions
Basic Procedure for Upgrading to Release 19.2
Upgrade and Downgrade Support Policy for Junos OS Releases
Upgrading a Router with Redundant Routing Engines
Junos OS Release Notes for the QFX Series
What's New
What’s New in Release 19.2R3
What’s New in Release 19.2R2
Routing Protocols
What's New in Release 19.2R1-S1
EVPN
Routing Protocols
What's New in Release 19.2R1
Hardware
EVPN
Interfaces and Chassis
Junos OS XML, API, and Scripting
Junos Telemetry Interface
MPLS
Network Management and Monitoring
Routing Policy and Firewall Filters
Routing Protocols
Software Installation and Upgrade
System Management
What's Changed
What’s Changed in Release 19.2R3
Class of Service
EVPN
General Routing
Interfaces and Chassis
Juniper Extension Toolkit (JET)
Routing Protocols
What’s Changed in Release 19.2R2
General Routing
Interfaces and Chassis
Layer 2 Features
Management
Multicast
Routing Protocols
Software-Defined Networking
What’s Changed in Release 19.2R1
EVPN
Interfaces and Chassis
Network Management and Monitoring
Services Applications
Security
Known Limitations
EVPN
Layer 2 Features
Platform and Infrastructure
Routing Protocols
Open Issues
EVPN
Infrastructure
Interfaces and Chassis
Layer 2 Features
Platform and Infrastructure
Routing Protocols
Virtual Chassis
Resolved Issues
Resolved Issues: 19.2R3
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: 19.2R2
Class of Service (CoS)
EVPN
Forwarding and Sampling
High Availability and Resiliency
Interfaces and Chassis
Junos Fusion for Enterprise
Junos Fusion for Provider Edge
Junos Fusion Satellite Software
Layer 2 Features
Layer 2 Ethernet Services
MPLS
Platform and Infrastructure
Routing Protocols
User Interface and Configuration
Resolved Issues: 19.2R1
Authentication and Access Control
Class of Service (CoS)
EVPN
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
Documentation Updates
Installation and Upgrade guide
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
What’s New
New and Changed Features: 19.2R3
New and Changed Features: 19.2R2
Intrusion Detection and Prevention (IDP)
New and Changed Features: 19.2R1-S1
Routing Protocols
New and Changed Features: 19.2R1
Application Security
Flow-Based and Packet-Based Processing
Intrusion Detection and Prevention (IDP)
Juniper Sky ATP
Junos Telemetry Interface
J-Web
Logical Systems and Tenant Systems
Network Management and Monitoring
Security
Unified Threat Management (UTM)
VPN
What's Changed
Release 19.2R3-S2 Changes in Behavior and Syntax
Interfaces and Chassis
Release 19.2R3 Changes in Behavior and Syntax
General Routing
Juniper Extension Toolkit (JET)
Network Management and Monitoring
Juniper Sky ATP
Release 19.2R2 Changes in Behavior and Syntax
Authentication and Access Control
Security
Release 19.2R1 Changes in Behavior and Syntax
Application Security
Ethernet Switching and Bridging
Flow-Based and Packet-Based Processing
Network Management and Monitoring
VPNs
Known Limitations
J-Web
VPNs
Open Issues
Chassis Clustering
Flow-Based and Packet-Based Processing
Intrusion Detection and Prevention (IDP)
J-Web
Platform and Infrastructure
Routing Policy and Firewall Filters
VPNs
Resolved Issues
Resolved Issues: 19.2R3
Chassis Clustering
Flow-Based and Packet-Based Processing
Interfaces and Chassis
Intrusion Detection and Prevention (IDP)
J-Web
Multiprotocol Label Switching (MPLS)
Platform and Infrastructure
Routing Policy and Firewall Filters
Routing Protocols
VPNs
Resolved Issues: 19.2R2
Application Layer Gateways (ALGs)
Application Security
Authentication and Access Control
Chassis Clustering
Class of Service (CoS)
Flow-Based and Packet-Based Processing
Installation 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: 19.2R1
Application Firewall
Application Identification
Application Layer Gateways (ALGs)
Chassis Clustering
Flow-Based and Packet-Based Processing
Infrastructure
Interfaces and Routing
Intrusion Detection and Prevention (IDP)
Installation and Upgrade
J-Web
Logical Systems 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
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