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Release Notes: Junos® OS Release 17.3R3 for the ACX Series, EX Series, MX Series, NFX Series, PTX Series, QFX Series, SRX Series, and Junos Fusion

 

30 September 2021

Table of Contents

Introduction
Junos OS Release Notes for ACX Series
New and Changed Features
Release 17.3R3 New and Changed Features
Release 17.3R2 New and Changed Features
Release 17.3R1 New and Changed Features
Hardware
Class of Service
Interfaces and Chassis
Timing and Synchronization
Changes in Behavior and Syntax
General Routing
Interfaces and Chassis
Known Behavior
Known Issues
Class of Service
Hierarchical Class of Service
Interfaces and Chassis
Software Installation and Upgrade
Layer 2 Features
Router
Resolved Issues
Reolved Issues: 17.3R3
Resolved Issues: 17.3R2
General Routing
Resolved Issues: 17.3R1
Layer 2 Features
Documentation Updates
Migration, Upgrade, and Downgrade Instructions
Upgrade and Downgrade Support Policy for Junos OS Releases
Product Compatibility
Hardware Compatibility
Hardware Compatibility Tool
Junos OS Release Notes for EX Series Switches
New and Changed Features
Release 17.3R3 New and Changed Features
Restoration Procedures and Failure Handling
Release 17.3R2 New and Changed Features
Release 17.3R1 New and Changed Features
Authentication, Authorization, and Accounting (AAA) (RADIUS)
EVPNs
Layer 2 Features
Layer 3 Features
Management
Multiprotocol Label Switching (MPLS)
Operation, Administration, and Maintenance
Services Applications
Changes in Behavior and Syntax
General Routing
Management
Multicast
Network Management and Monitoring
Routing Protocols
Services Applications
VLAN Infrastructure
Known Behavior
Authentication, Authorization, and Accounting (AAA) (RADIUS)
Platform and Infrastructure
Known Issues
General Routing
High Availability (HA) and Resiliency
Layer 2 Features
Platform and Infrastructure
Virtual Chassis
Resolved Issues
Resolved Issues: 17.3R3
EVPN
High Availability (HA) and Resiliency
Infrastructure
Interfaces and Chassis
MPLS
Platform and Infrastructure
Routing Protocols
Resolved Issues: 17.3R2
Authentication, Authorization, and Accounting (AAA) (RADIUS)
Class of Service (CoS)
EVPNs
Infrastructure
Interfaces and Chassis
Layer 2 Features
MPLS
Platform and Infrastructure
Routing Protocols
Virtual Chassis
Resolved Issues: 17.3R1
Authentication, Authorization, and Accounting (AAA) (RADIUS)
Infrastructure
Interfaces and Chassis
Layer 2 Features
Platform and Infrastructure
Documentation Updates
Traffic Management User Guide for EX4600 Switches
Migration, Upgrade, and Downgrade Instructions
Upgrade and Downgrade Support Policy for Junos OS Releases
Product Compatibility
Hardware Compatibility
Hardware Compatibility Tool
Junos OS Release Notes for Junos Fusion Data Center
New and Changed Features
Changes in Behavior and Syntax
Known Behavior
Junos Fusion Data Center
Known Issues
Resolved Issues
Resolved Issues: Release 17.3R3
Junos Fusion Data Center
Resolved Issues: Release 17.3R2
Junos Fusion Data Center
Documentation Updates
Migration, Upgrade, and Downgrade Instructions
Basic Procedure for Upgrading an Aggregation Device
Preparing the Switch for Satellite Device Conversion
Autoconverting a Switch into a Satellite Device
Manually Converting a Switch into a Satellite Device
Configuring a Switch into a Satellite Device Before Connecting It to a Junos Fusion Topology
Configuring Satellite Device Upgrade Groups
Converting a Satellite Device to a Standalone Device
Upgrade and Downgrade Support Policy for Junos OS Releases
Downgrading from Release 17.3
Product Compatibility
Hardware Compatibility
Junos OS Release Notes for Junos Fusion Enterprise
New and Changed Features
Junos Fusion Enterprise
Changes in Behavior and Syntax
Junos Fusion Enterprise
Known Behavior
Junos Fusion Enterprise
Known Issues
Junos Fusion Enterprise
Resolved Issues
Resolved Issues: 17.3R3
Resolved Issues: 17.3R2
Resolved Issues: 17.3R1
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 Release 17.3
Product Compatibility
Hardware and Software Compatibility
Hardware Compatibility Tool
Junos OS Release Notes for Junos Fusion Provider Edge
New and Changed Features
Release 17.3R3 New and Changed Features
Release 17.3R2 New and Changed Features
Release 17.3R1 New and Changed Features
Junos Fusion
Changes in Behavior and Syntax
Known Behavior
Known Issues
Resolved Issues
Resolved Issues: 17.3R3
Junos Fusion Provider Edge
Resolved Issues: 17.3R2
Junos Fusion Provider Edge
Junos Fusion Satellite Software
Resolved Issues: 17.3R1
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 Release 17.3
Product Compatibility
Hardware Compatibility
Hardware Compatibility
Hardware Compatibility Tool
Junos OS Release Notes for MX Series 5G Universal Routing Platforms
New and Changed Features
Release 17.3R3-S12 New and Changed Features
General Routing
Release 17.3R3 New and Changed Features
Interfaces and Changes
Restoration Procedures and Failure
Services Applications
Software Installation and Upgrade
Subscriber Management and Services
VPNs
Release 17.3R2 New and Changed Features
Release 17.3R1 New and Changed Features
Class of Service (CoS)
Dynamic Host Configuration Protocol (DHCP)
EVPNs
General Routing
High Availability (HA) and Resiliency
Interfaces and Chassis
IPsec
IPv6
Layer 2 Features
Layer 2 VPN
Layer 3 Features
Management
MPLS
Multicast
Network Management and Monitoring
Operation, Administration, and Maintenance (OAM)
Port Security
Routing Policy and Firewall Filters
Routing Protocols
Security
Services Applications
Software Defined Networking (SDN)
Subscriber Management and Services
Virtual Chassis
Changes in Behavior and Syntax
Class of Service
EVPNs
General Routing
High Availability (HA) and Resiliency
Infrastructure
Interfaces and Chassis
Management
MPLS
Network Management and Monitoring
Routing Protocols
Security
Services Application
Software Installation and Upgrade
Subscriber Management and Services
User Interface and Configuration
VLAN Infrastructure
Known Behavior
Class of Service (CoS)
EVPN
Forwarding and Sampling
General Routing
High Availability (HA) and Resiliency
Infrastructure
Interfaces and Chassis
MPLS
Platform and Infrastructure
Routing Protocols
Services Application
Software Installation and Upgrage
Subscriber Management and Services
Known Issues
Class of Service (CoS)
EVPN
Forwarding and Sampling
General Routing
High Availability (HA) and Resiliency
Infrastructure
Interfaces and Chassis
Layer 2 Ethernet Services
Layer 2 Features
MPLS
Platform and Infrastructure
Routing Protocols
Services Applications
Subscriber Access Management
User Interface and Configuration
VPNs
Resolved Issues
Resolved Issues: 17.3R3
Application Layer Gateways (ALGs)
Class of Service (CoS)
EVPN
Forwarding and Sampling
General Routing
High Availability (HA) and Resiliency
Infrastructure
Interfaces and Chassis
Layer 2 Ethernet Services
Layer 2 Features
MPLS
Multicast
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: 17.3R2
Application Layer Gateways (ALGs)
EVPN
Forwarding and Sampling
General Routing
High Availability and Resiliency
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
VPNs
Resolved Issues: 17.3R1
Class of Service (CoS)
Forwarding and Sampling
General Routing
Interfaces and Chassis
Layer 2 Features
Layer 2 Ethernet Services
MPLS
Network Management and Monitoring
Platform and Infrastructure
Routing Protocols
Services Applications
Subscriber Management and Services
User Interface and Configuration
VPNs
Documentation Updates
Subscriber Management Access Network
Subscriber Management Provisioning Guide
Migration, Upgrade, and Downgrade Instructions
Basic Procedure for Upgrading to Release 17.3
Procedure to Upgrade to FreeBSD 10.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 17.3
Product Compatibility
Hardware Compatibility
Hardware Compatibility Tool
Junos OS Release Notes for NFX Series
New and Changed Features
Release 17.3R3 New and Changed Features
Release 17.3R2 New and Changed Features
Release 17.3R1 New and Changed Features
Juniper Device Manager
Changes in Behavior and Syntax
Known Behavior
Known Issues
Resolved Issues
Documentation Updates
Migration, Upgrade, and Downgrade Instructions
Upgrade and Downgrade Support Policy for Junos OS Releases
Product Compatibility
Hardware Compatibility
Hardware Compatibility Tool
Junos OS Release Notes for PTX Series Packet Transport Routers
New and Changed Features
Release 17.3R3 New and Changed Features
Release 17.3R2 New and Changed Features
Software Installation and Upgrade
Release 17.3R1 New and Changed Features
Class of Service
General Routing
Interfaces and Chassis
Management
Multicast
Network Management and Monitoring
Operation, Administration, and Maintenance
Routing Policy and Firewall Filters
Routing Protocols
Services Applications
Changes in Behavior and Syntax
Forwarding and Sampling
Interfaces and Chassis
Management
Network Management and Monitoring
Services Application
VLAN-Infrastructure
Known Behavior
General Routing
MPLS
Known Issues
General Routing
Interfaces and Chassis
Routing Protocols
Resolved Issues
Resolved Issues: 17.3R3
General Routing
Infrastructure
MPLS
Platform and Infrastructure
Routing Protocols
VPN
Resolved Issues: 17.3R2
General Routing
Infrastructure
Interfaces and Chassis
MPLS
Platform and Infrastructure
Routing Protocols
Resolved Issues: 17.3R1
Layer 2 Features
Documentation Updates
Migration, Upgrade, and Downgrade Instructions
Upgrade and Downgrade Support Policy for Junos OS Releases
Upgrading a Router with Redundant Routing Engines
Basic Procedure for Upgrading to Release 17.3
Product Compatibility
Hardware Compatibility
Hardware Compatibility Tool
Junos OS Release Notes for the QFX Series
New and Changed Features
Release 17.3R3 New and Changed Features
EVPNs
Routing Policy and Firewall Filters
Release 17.3R2 New and Changed Features
EVPNs
IP Tunneling
Multicast
Virtual Chassis
Release 17.3R1 New and Changed Features
Class of Service (CoS)
EVPNs
General Routing
High Availability (HA) and Resiliency
Interfaces and Chassis
Layer 2 Features
Management
Multicast
MPLS
Operation, Administration, and Maintenance
Port Security
Routing Protocols Policy and Firewall Filters
Routing Protocols
Virtual Chassis
Changes in Behavior and Syntax
Class of Service (CoS)
EVPNs
General Routing
Interfaces and Chassis
Management
Network Management and Monitoring
Routing Policy and Firewall Filters
Virtual Chassis
VLAN Infrastructure
Known Behavior
Class of Service (CoS)
EVPN
High Availability (HA) and Resiliency
Layer 2 Features
MPLS
Platform and Infrastructure
Routing Protocols
Virtual Chassis
Known Issues
Class of Service (CoS)
EVPN
General Routing
Interfaces and Chassis
Layer 2 Features
Network Management and Monitoring
Routing Protocols
Software Installation and Upgrade
Resolved Issues
Resolved Issues: 17.3R3
General Routing
EVPN
High Availability (HA) and Resiliency
Interfaces and Chassis
Layer 2 Features
Layer 2 Ethernet Services
MPLS
Platform and Infrastructure
Routing Protocols
Resolved Issues: 17.3R2
Hardware
Class of Service (CoS)
EVPNs
Interfaces and Chassis
Layer 2 Features
Layer 3 Features
Management
MPLS
Network Management and Monitoring
Platform and Infrastructure
Port Security
Routing Policy and Firewall Filters
Routing Protocols
Software Installation and Upgrade
Virtual Chassis
Resolved Issues: 17.3R1
General Routing
Interfaces and Chassis
Layer 2 Features
Port Security
Routing Protocols
System Management
VXLAN
Documentation Updates
Traffic Management User Guide for the QFX Series
Migration, Upgrade, and Downgrade Instructions
Upgrading Software on QFX Series 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
Product Compatibility
Hardware Compatibility
Hardware Compatibility Tool
Junos OS Release Notes for SRX Series
New and Changed Features
Release 17.3R2 New and Changed Features
Release 17.3R1 New and Changed Features
Flow and Processing
IDP
Interfaces and Chassis
Junos OS XML API and Scripting
Layer 2 Features
Management
Network Security
Software Installation and Upgrade
User Interface and Configuration
Resolved Issues
Resolved Issues: 17.3R2
Application Layer Gateways (ALGs)
Authentication and Access Control
Chassis Clustering
CoS
Ethernet Switching
Flow-Based and Packet-Based Processing
J-Web
Network Address Translation (NAT)
Network Management and Monitoring
Platform and Infrastructure
Resolved Issues: 17.3R1
Interfaces and Chassis
Layer 2 Ethernet Services
Platform and Infrastructure
Routing Policy and Firewall Filters
Unified Threat Management (UTM)
VPNs
Migration, Upgrade, and Downgrade Instructions
Upgrade and Downgrade Scripts for Address Book Configuration
About Upgrade and Downgrade Scripts
Running Upgrade and Downgrade Scripts
Upgrade and Downgrade Support Policy for Junos OS Releases and Extended End-Of-Life Releases
Product Compatibility
Hardware Compatibility
Upgrading Using Unified ISSU
Compliance Advisor
Finding More Information
Documentation Feedback
Requesting Technical Support
Revision History