Junos® OS Release 15.1R1 for the EX Series, M Series, MX Series,
PTX Series, QFX Series, and T Series

28 May 2015

Introduction
Junos OS Release Notes for EX Series Switches
New and Changed Features
Interfaces and Chassis
Management
MPLS
Network Management and Monitoring
Port Security
Software Installation and Upgrade
Spanning-Tree Protocols
User Interface and Configuration
Changes in Behavior and Syntax
Known Behavior
Known Issues
Interfaces and Chassis
J-Web
Documentation Updates
Migration, Upgrade, and Downgrade Instructions
Upgrade and Downgrade Support Policy for Junos OS Releases
Upgrading to Junos OS Release 12.1R2 or Later with Existing VSTP Configurations
Upgrading from Junos OS Release 10.4R3 or Later
Upgrading from Junos OS Release 10.4R2 or Earlier
Upgrading from Junos OS Release 10.4R2 or Earlier
Upgrading EX Series Switches Using NSSU
Product Compatibility
Hardware Compatibility
Junos OS Release Notes for M Series Multiservice Edge Routers, MX Series 3D Universal Edge Routers, and T Series Core Routers
New and Changed Features
Hardware
Bridging and Learning
Class of Service (CoS)
High Availability (HA) and Resiliency
Interfaces and Chassis
IPv6
Junos OS XML API and Scripting
Layer 2 Features
Management
Multicast
MPLS
Network Management and Monitoring
Routing Protocols
Routing Policy and Firewall Filters
Services Applications
Subscriber Management and Services (MX Series)
Software Installation and Upgrade
User Interface and Configuration
VPNs
Changes in Behavior and Syntax
High Availability (HA) and Resiliency
Routing Protocols
Routing Policy and Firewall Filters
Security
Services Applications
Subscriber Management and Services (MX Series)
User Interface and Configuration
VPNs
Known Behavior
Subscriber Management and Services (MX Series)
Known Issues
Authentication and Access Control
Class of Service (CoS)
Forwarding and Sampling
General Routing
Infrastructure
Interfaces and Chassis
J-Web
Layer 2 Features
MPLS
Network Management and Monitoring
Platform and Infrastructure
Routing Policy and Firewall Filters
Routing Protocols
Services Applications
Subscriber Management and Services (MX Series)
User Interface and Configuration
VPNs
Documentation Updates
High Availability Feature Guide
Secure Neighbor Discovery
Subscriber Management Provisioning Guide
Migration, Upgrade, and Downgrade Instructions
Basic Procedure for Upgrading to Release 15.1
Upgrade and Downgrade Support Policy for Junos OS Releases
Upgrading a Router with Redundant Routing Engines
Upgrading Juniper Network Routers Running Draft-Rosen Multicast VPN to Junos OS Release 10.1
Upgrading the Software for a Routing Matrix
Upgrading Using Unified ISSU
Upgrading from Junos OS Release 9.2 or Earlier on a Router Enabled for Both PIM and NSR
Downgrading from Release 15.1
Product Compatibility
Hardware Compatibility
Junos OS Release Notes for PTX Series Packet Transport Routers
New and Changed Features
Hardware
Interfaces and Chassis
IPv6
Junos OS XML API and Scripting
Management
MPLS
Routing Protocols
User Interface and Configuration
Changes in Behavior and Syntax
High Availability (HA) and Resiliency
User Interface and Configuration
Known Behavior
Known Issues
General Routing
Documentation Updates
High Availability Feature Guide
Migration, Upgrade, and Downgrade Instructions
Upgrading Using Unified ISSU
Upgrading a Router with Redundant Routing Engines
Basic Procedure for Upgrading to Release 15.1B1
Product Compatibility
Hardware Compatibility
Junos OS Release Notes for QFX Series
New and Changed Features
Management
Network Management and Monitoring
Spanning-Tree Protocols
User Interface and Configuration
Changes in Behavior and Syntax
Routing Protocols
Known Behavior
Known Issues
High Availability
Platform and Infrastructure
Routing Policy
Documentation Updates
Migration, Upgrade, and Downgrade Instructions
Performing an In-Service Software Upgrade (ISSU)
Preparing the Switch for Software Installation
Upgrading the Software Using ISSU
Product Compatibility
Hardware Compatibility
Third-Party Components
Finding More Information
Requesting Technical Support
Revision History