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Release Notes: Junos® OS Release 20.2R3 for the ACX Series, cSRX, EX Series, JRR Series, Junos Fusion, MX Series, NFX Series, PTX Series, QFX Series, SRX Series, vMX, vRR, and vSRX

 

7 October 2021

Table of Contents

Introduction
Junos OS Release Notes for ACX Series
What's New
What's New in Release 20.2R3
What's New in Release 20.2R2
What's New in Release 20.2R1
Hardware
Authentication, Authorization, and Accounting
Class of Service (CoS)
EVPN
Interfaces and Chassis
Juniper Extension Toolkit (JET)
Junos Telemetry Interface
MPLS
Multicast
Network Management and Monitoring
Routing Policy and Firewall Filters
What's Changed
What's Changed in Release 20.2R3-S3
Interfaces and Chassis
What's Changed in Release 20.2R3
Junos OS XML API and Scripting
Network Management and Monitoring
User Interface and Configuration
What’s Changed in Release 20.2R2
General Routing
Routing Protocols
What’s Changed in Release 20.2R1
General Routing
Juniper Extension Toolkit (JET)
Network Management and Monitoring
Known Limitations
General Routing
Open Issues
General Routing
Virtual Chassis
Resolved Issues
Resolved Issues: 20.2R3
General Routing
Layer 2 Features
Resolved Issues: 20.2R2
General Routing
Interfaces and Chassis
Routing Protocols
Resolved Issues: 20.2R1
General Routing
Interfaces and Chassis
Layer 2 Ethernet Services
MPLS
Routing Protocols
VPNs
Documentation Updates
Migration, Upgrade, and Downgrade Instructions
Upgrade and Downgrade Support Policy for Junos OS Releases
Junos OS Release Notes for cSRX
What’s New
What's New in Release 20.2R3
What's New in Release 20.2R2
What's Changed
What’s Changed in Release 20.2R3
What’s Changed in Release 20.2R2
Known Limitations
Open Issues
Resolved Issues
Resolved Issues: 20.2R3
Resolved Issues: 20.2R2
Junos OS Release Notes for EX Series
What's New
What’s New in Release 20.2R3
What’s New in Release 20.2R2
What’s New in Release 20.2R1-S1
Software Installation and Upgrade
What’s New in Release 20.2R1
Authentication, Authorization, and Accounting
EVPN
High Availability (HA) and Resiliency
Juniper Extension Toolkit (JET)
Junos OS XML, API, and Scripting
Junos Telemetry Interface
Layer 2 Features
Multicast
Network Management and Monitoring
Routing Policy and Firewall Filters
Routing Protocols
What's Changed
What’s Changed in Release 20.2R3
Junos OS XML API and Scripting
Network Management and Monitoring
User Interface and Configuration
What’s Changed in Release 20.2R2
General Routing
Routing Protocols
What’s Changed in Release 20.2R1
General Routing
Juniper Extension Toolkit (JET)
Network Management and Monitoring
Known Limitations
EVPN
General Routing
Infrastructure
Layer 2 Ethernet Services
Open Issues
General Routing
Infrastructure
Interfaces and Chassis
Layer 2 Features
Layer 2 Ethernet Services
Platform and Infrastructure
Routing Protocols
Resolved Issues
Resolved Issues: 20.2R3
General Routing
Infrastructure
Platform and Infrastructure
Routing Protocols
User Interface and Configuration
Virtual Chassis
Resolved Issues: 20.2R2
Authentication and Access Control
EVPN
General Routing
Infrastructure
Layer 2 Features
Platform and Infrastructure
Routing Protocols
User Interface and Configuration
Virtual Chassis
Resolved Issues: 20.2R1
Authentication and Access Control
EVPN
Infrastructure
Interfaces and Chassis
Junos Fusion for Enterprise
Junos Fusion Satellite Software
Layer 2 Ethernet Services
Layer 2 Features
MPLS
Platform and Infrastructure
Routing Protocols
User Interface and Configuration
Documentation Updates
Migration, Upgrade, and Downgrade Instructions
Upgrade and Downgrade Support Policy for Junos OS Releases
Junos OS Release Notes for JRR Series
What's New
What’s New in Release 20.2R3
What’s New in Release 20.2R2
What’s New in Release 20.2R1
Layer 2 Features
What's Changed
Known Limitations
Open Issues
Resolved Issues
Resolved Issues: 20.2R3
General Routing
Resolved Issues: 20.2R2
General Routing
Resolved Issues: 20.2R1
General Routing
Documentation Updates
Migration, Upgrade, and Downgrade Instructions
Upgrade and Downgrade Support Policy for Junos OS Releases
Junos OS Release Notes for Junos Fusion for Enterprise
What’s New
What's Changed
Known Limitations
Open Issues
Resolved Issues
Resolved Issues: Release 20.2R3
Resolved Issues: Release 20.2R2
Resolved Issues: Release 20.2R1
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 Junos OS
Junos OS Release Notes for Junos Fusion for Provider Edge
What's New
What’s New in Release 20.2R3
What’s New in Release 20.2R2
What’s New in Release 20.2R1
Hardware
Junos Fusion
What's Changed
Known Limitations
Open Issues
Resolved Issues
Resolved Issues: 20.2R3
Resolved Issues: 20.2R2
Junos Fusion for Provider Edge
Resolved Issues: 20.2R1
Junos Fusion for Provider Edge
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 20.1
Junos OS Release Notes for MX Series
What's New
What’s New in Release 20.2R3
What’s New in Release 20.2R2-S3
OAM
What’s New in Release 20.2R2-S2
Services Applications
What’s New in Release 20.2R2
What’s New in Release 20.2R1-S1
Software Installation and Upgrade
What’s New in Release 20.2R1
Class of Service (CoS)
EVPN
High Availability (HA) and Resiliency
Interfaces and Chassis
Juniper Extension Toolkit (JET)
Junos Telemetry Interface
Layer 2 VPN
Layer 3 Features
Management
MPLS
Multicast
Network Management and Monitoring
Next Gen Services
Operation, Administration, and Maintenance (OAM)
Routing Policy and Firewall Filters
Routing Protocols
Services Applications
Software-Defined Networking (SDN)
Subscriber Management and Services
System Logging
System Management
Virtual Chassis
What's Changed
What’s Changed in Release 20.2R3
General Routing
Junos XML API and Scripting
Layer 2 Ethernet Services
Network Management and Monitoring
User Interface and Configuration
What’s Changed in Release 20.2R2
EVPN
General Routing
High Availability (HA) and Resiliency
Infrastructure
Interfaces and Chassis
Juniper Extension Toolkit (JET)
Routing Protocols
Subscriber Management and Services
What’s Changed in Release 20.2R1
Class of Service (CoS)
General Routing
Juniper Extension Toolkit (JET)
Network Management and Monitoring
Services Applications
Software-Defined Networking (SDN)
Known Limitations
General Routing
Infrastructure
Interfaces and Chassis
MPLS
Network Management and Monitoring
Platform and Infrastructure
Routing Protocols
Open Issues
Class of Service (CoS)
EVPN
Forwarding and Sampling
General Routing
High Availability (HA) and Resiliency
Infrastructure
Interfaces and Chassis
Layer 2 Ethernet Services
MPLS
Platform and Infrastructure
Routing Policy and Firewall Filters
Routing Protocols
Services Applications
Subscriber Access Management
User Interface and Configuration
VPNs
Resolved Issues
Resolved Issues: 20.2R3
Class of Service (CoS)
EVPN
Forwarding and Sampling
General Routing
Infrastructure
Interfaces and Chassis
Layer 2 Ethernet Services
MPLS
Network Management and Monitoring
Platform and Infrastructure
Routing Policy and Firewall Filters
Routing Protocols
Services Applications
User Interface and Configuration
VPNs
Resolved Issues: 20.2R2
Application Layer Gateways (ALGs)
EVPN
Forwarding and Sampling
General Routing
Infrastructure
Interfaces and Chassis
Intrusion Detection and Prevention (IDP)
Junos Fusion for Provider Edge
Layer 2 Ethernet Services
MPLS
Network Address Translation (NAT)
Network Management and Monitoring
Platform and Infrastructure
Routing Protocols
Services Applications
Subscriber Access Management
User Interface and Configuration
VPNs
Resolved Issues: 20.2R1
Application Layer Gateways (ALGs)
Class of Service (CoS)
EVPN
Forwarding and Sampling
General Routing
High Availability (HA) and Resiliency
Infrastructure
Interfaces and Chassis
Intrusion Detection and Prevention (IDP)
J-Web
Junos Fusion for Enterprise
Junos Fusion Satellite Software
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
Advanced Subscriber Management Provider
Migration, Upgrade, and Downgrade Instructions
Basic Procedure for Upgrading to Release 20.2R3
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 20.2R3
Junos OS Release Notes for NFX Series
What’s New
What's New in Release 20.2R3
What's New in Release 20.2R2
What's New in Release 20.2R1
Application Security
High Availability
Interfaces
What's Changed
What’s Changed in Release 20.2R3
What’s Changed in Release 20.2R2
What’s Changed in Release 20.2R1
Known Limitations
Open Issues
High Availability
Interfaces
Platform and Infrastructure
Virtual Network Functions (VNFs)
Resolved Issues
Resolved Issues: 20.2R3
General Routing
High Availability
Interfaces
Platform and Infrastructure
Resolved Issues: 20.2R2
High Availability (HA)
Interfaces
Platform and Infrastructure
Resolved Issues: 20.2R1
Application Security
High Availability
Interfaces
Mapping of Address and Port with Encapsulation (MAP-E)
Platform and Infrastructure
Virtualized Network Functions (VNFs)
Documentation Updates
Migration, Upgrade, and Downgrade Instructions
Upgrade and Downgrade Support Policy for Junos OS Releases
Basic Procedure for Upgrading to Release 20.2
Junos OS Release Notes for PTX Series
What's New
What’s New in Release 20.2R3
What’s New in Release 20.2R2
What’s New in Release 20.2R1
High Availability (HA) and Resiliency
Interfaces and Chassis
Juniper Extension Toolkit (JET)
Junos Telemetry Interface
MPLS
Network Management and Monitoring
Routing Policy and Firewall Filters
Routing Protocols
System Logging
What's Changed
What's Changed in Release 20.2R3
Junos OS XML API and Scripting
Network Management and Monitoring
User Interface and Configuration
What's Changed in Release 20.2R2
General Routing
MPLS
Routing Protocols
Known Limitations
General Routing
MPLS
Routing Protocols
Open Issues
General Routing
Infrastructure
Interfaces and Chassis
Layer 2 Ethernet Services
MPLS
Routing Protocols
Resolved Issues
Resolved Issues: 20.2R3
General Routing
Forwarding and Sampling
Infrastructure
Interfaces and Chassis
Network Management and Monitoring
Platform and Infrastructure
Routing Policy and Firewall Filters
Routing Protocols
Resolved Issues: 20.2R2
General Routing
Interfaces and Chassis
MPLS
Routing Protocols
Resolved Issues: 20.2R1
General Routing
Infrastructure
Layer 2 Ethernet Services
MPLS
Routing Protocols
Documentation Updates
Migration, Upgrade, and Downgrade Instructions
Basic Procedure for Upgrading to Release 20.2
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 20.2R3
What’s New in Release 20.2R2
What’s New in Release 20.2R1-S1
Flow-Based and Packet-Based Processing
Software Installation and Upgrade
What’s New in Release 20.2R1
Hardware
Authentication, Authorization, and Accounting
Class of Service
EVPN
High Availability (HA) and Resiliency
Interfaces and Chassis
Juniper Extension Toolkit (JET)
Junos Telemetry Interface
Layer 2 Features
Multicast
Network Management and Monitoring
Routing Policy and Firewall Filters
Virtual Chassis
What's Changed
What’s Changed in Release 20.2R3
General Routing
Junos XML API and Scripting
Network Management and Monitoring
User Interface and Configuration
What’s Changed in Release 20.2R2
Platform and Infrastructure
Routing Protocols
What’s Changed in Release 20.2R1
General Routing
Interfaces and Chassis
Junos Extension Toolkit
Network Management and Monitoring
Routing Protocol
Known Limitations
Class of Service (CoS)
Layer 2 Features
Layer 2 Ethernet Services
Platform and Infrastructure
Routing Protocols
Open Issues
EVPN
High Availability (HA) and Resiliency
Infrastructure
Interfaces and Chassis
Layer 2 Features
Layer 2 Ethernet Services
Platform and Infrastructure
Routing Protocols
Virtual Chassis
Resolved Issues
Resolved Issues: 20.2R3
EVPN
Forwarding and Sampling
Infrastructure
Interfaces and Chassis
Layer 2 Features
Layer 2 Ethernet Services
Platform and Infrastructure
Routing Policy and Firewall Filters
Routing Protocols
User Interface and Configuration
Resolved Issues: 20.2R2-S2
Resolved Issues: 20.2R2
Class of Service (CoS)
EVPN
Infrastructure
Interfaces and Chassis
Layer 2 Ethernet Services
Layer 2 Features
Platform and Infrastructure
Routing Protocols
User Interface and Configuration
Virtual Chassis
Resolved Issues: 20.2R1
EVPN
Class of Service (CoS)
General Routing
High Availability (HA) and Resiliency
Interfaces and Chassis
Junos Fusion for Enterprise
Layer 2 Ethernet Services
Layer 2 Features
MPLS
Platform and Infrastructure
Routing Protocols
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
What’s New
What’s New in Release 20.2R3
What’s New in Release 20.2R2
What’s New in Release 20.2R1
Application Security
Authentication and Access Control
Flow-Based and Packet-Based Processing
General Packet Radio Switching (GPRS)
Intrusion Detection and Prevention (IDP)
Junos Telemetry Interface
Juniper Extension Toolkit (JET)
J-Web
ATP Cloud
Logical Systems and Tenant Systems
Multicast
Network Address Translation (NAT)
Network Management and Monitoring
Platform and Infrastructure
Port Security
Security
Software Installation and Upgrade
Unified Threat Management (UTM)
What's Changed
What's Changed in Release 20.2R3
Flow-Based and Packet-Based Processing
Junos OS XML API and Scripting
Network Management and Monitoring
User Interface and Configuration
What's Changed in Release 20.2R2
J-Web
Platform and Infrastructure
Routing Protocols
System Log
VPNs
What's Changed in Release 20.2R1-S1
Network Address Translation (NAT)
What's Changed in Release 20.2R1
Application Security
Class of Service (CoS)
Flow-Based and Packet-Based Processing
Juniper Extension Toolkit (JET)
Juniper Sky ATP
Network Management and Monitoring
VPNs
Known Limitations
Flow-Based and Packet-Based Processing
J-Web
VPNs
Open Issues
Flow-Based and Packet-Based Processing
J-Web
Routing Policy and Firewall Filters
VPNs
Resolved Issues
Resolved Issues: 20.2R3
Chassis Clustering
Flow-Based and Packet-Based Processing
General Routing
Interfaces and Chassis
Intrusion Detection and Prevention (IDP)
J-Web
Platform and Infrastructure
Routing Policy and Firewall Filters
Subscriber Access Management
Unified Threat Management (UTM)
VPNs
Resolved Issues: 20.2R2
Application Layer Gateways (ALGs)
Flow-Based and Packet-Based Processing
Interfaces and Chassis
Intrusion Detection and Prevention (IDP)
J-Web
Layer 2 Ethernet Services
Network Address Translation (NAT)
Platform and Infrastructure
Routing Policy and Firewall Filters
Unified Threat Management (UTM)
VPNs
Resolved Issues: 20.2R1
Application Layer Gateways (ALGs)
Authentication and Access Control
Flow-Based and Packet-Based Processing
Intrusion Detection and Prevention (IDP)
J-Web
Layer 2 Ethernet Services
Multiprotocol Label Switching (MPLS)
Network Address Translation (NAT)
Network Management and Monitoring
Platform and Infrastructure
Routing Policy and Firewall Filters
Routing Protocols
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
Junos OS Release Notes for vMX
What’s New
What's New in Release 20.2R3
What's New in Release 20.2R2
What's Changed
What’s Changed in Release 20.2R3
What’s Changed in Release 20.2R2
Known Limitations
Open Issues
Resolved Issues
Resolved Issues: 20.2R3
Resolved Issues: 20.2R2
Platform and Infrastructure
Licensing
Upgrade Instructions
Junos OS Release Notes for vRR
What’s New
What's New in Release 20.2R3
What's New in Release 20.2R2
What's Changed
What’s Changed in Release 20.2R3
What’s Changed in Release 20.2R2
Known Limitations
Open Issues
Resolved Issues
Resolved Issues: 20.2R3
CLI
Junos OS Release Notes for vSRX
What’s New
What's New in Release 20.2R3
What's New in Release 20.2R2
What's Changed
What’s Changed in Release 20.2R3
What’s Changed in Release 20.2R2
Platform and Infrastructure
Known Limitations
J-Web
Open Issues
Intrusion Detection and Prevention (IDP)
J-Web
Platform and Infrastructure
Resolved Issues
Resolved Issues: 20.2R3
Intrusion Detection and Prevention (IDP)
Platform and Infrastructure
Resolved Issues: 20.2R2
Intrusion Detection and Prevention (IDP)
J-Web
Platform and Infrastructure
Routing Policy and Firewall Filters
VPNs
Migration, Upgrade, and Downgrade Instructions
Upgrading Software Packages
Validating the OVA Image
Upgrading Using ISSU
Licensing
Compliance Advisor
Finding More Information
Documentation Feedback
Requesting Technical Support
Revision History