- Introduction
- play_arrow Junos OS Release Notes for ACX Series
- play_arrow What's New
- play_arrow What's Changed
- Known Limitations
- Open Issues
- play_arrow Resolved Issues
- Documentation Updates
- Migration, Upgrade, and Downgrade Instructions
- play_arrow Junos OS Release Notes for cSRX
- play_arrow What's New
- play_arrow What's Changed
- Known Limitations
- Open Issues
- play_arrow Resolved Issues
- Documentation Updates
- play_arrow Junos OS Release Notes for EX Series
- play_arrow What's New
- play_arrow What's Changed
- Known Limitations
- Open Issues
- play_arrow Resolved Issues
- Documentation Updates
- Migration, Upgrade, and Downgrade Instructions
- play_arrow Junos OS Release Notes for JRR Series
- play_arrow What's New
- play_arrow What's Changed
- Known Limitations
- Open Issues
- play_arrow Resolved Issues
- Documentation Updates
- Migration, Upgrade, and Downgrade Instructions
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- play_arrow What's New
- play_arrow What's Changed
- Known Limitations
- Open Issues
- play_arrow Resolved Issues
- Documentation Updates
-
- play_arrow What's New
- play_arrow What's Changed
- Known Limitations
- Open Issues
- play_arrow Resolved Issues
- Documentation Updates
- Migration, Upgrade, and Downgrade Instructions
-
- play_arrow What's New
- play_arrow What's Changed
- Known Limitations
- Open Issues
- play_arrow Resolved Issues
- Documentation Updates
- Migration, Upgrade, and Downgrade Instructions
- play_arrow Junos OS Release Notes for MX Series
- play_arrow What's New
- What's New in 21.2R3
- What's New in 21.2R2
- play_arrow What's New in 21.2R1
- Hardware
- Authentication and Access Control
- Flow-Based and Packet-Based Processing
- High Availability
- Interfaces
- Juniper Extension Toolkit (JET)
- Junos Telemetry Interface
- Layer 2 VPN
- MACsec
- MPLS
- Network Address Translation (NAT)
- Network Management and Monitoring
- Platform and Infrastructure
- Routing Options
- Routing Policy and Firewall Filters
- Routing Protocols
- Services Applications
- Software Defined Networking (SDN)
- Software Installation and Upgrade
- Source Packet Routing in Networking (SPRING) or Segment Routing
- Subscriber Management and Services
- System Management
- play_arrow What's Changed
- Known Limitations
- Open Issues
- play_arrow Resolved Issues
- Documentation Updates
- Migration, Upgrade, and Downgrade Instructions
- play_arrow Junos OS Release Notes for PTX Series
- play_arrow What's New
- play_arrow What's Changed
- Known Limitations
- Open Issues
- play_arrow Resolved Issues
- Documentation Updates
- Migration, Upgrade, and Downgrade Instructions
- play_arrow Junos OS Release Notes for QFX Series
- play_arrow What's New
- What's New in 21.2R3
- play_arrow What's New in 21.2R2
- play_arrow What's New in 21.2R1
- play_arrow What's Changed
- Known Limitations
- Open Issues
- play_arrow Resolved Issues
- Documentation Updates
- Migration, Upgrade, and Downgrade Instructions
- play_arrow Junos OS Release Notes for SRX Series
- play_arrow What's New
- What's New in 21.2R3
- What's New in 21.2R2
- play_arrow What's New in 21.2R1
- Application Identification (AppID)
- Authentication and Access Control
- Flow-Based and Packet-Based Processing
- Interfaces
- J-Web
- Juniper Advanced Threat Prevention Cloud (ATP Cloud)
- Junos Telemetry Interface
- Network Management and Monitoring
- Software Installation and Upgrade
- Securing GTP and SCTP Traffic
- VPNs
- play_arrow What's Changed
- Known Limitations
- Open Issues
- play_arrow Resolved Issues
- Documentation Updates
- Migration, Upgrade, and Downgrade Instructions
- play_arrow Junos OS Release Notes for vMX
- play_arrow What's New
- play_arrow What's Changed
- Known Limitations
- Open Issues
- play_arrow Resolved Issues
- Documentation Updates
- Upgrade Instructions
- play_arrow Junos OS Release Notes for vRR
- play_arrow What's New
- play_arrow What's Changed
- Known Limitations
- Open Issues
- play_arrow Resolved Issues
- Documentation Updates
- play_arrow Junos OS Release Notes for vSRX
- play_arrow What's New
- play_arrow What's Changed
- Known Limitations
- Open Issues
- play_arrow Resolved Issues
- Documentation Updates
- Migration, Upgrade, and Downgrade Instructions
- Licensing
- Finding More Information
- Documentation Feedback
- Requesting Technical Support
- Revision History
Flow-Based and Packet-Based Processing
GRE acceleration enhancement (NFX Series, SRX Series, and vSRX)—Starting in Junos OS Release 21.2R1, security devices support the existing PMI and GRE acceleration for non software-defined WAN (SD-WAN) deployments.
PMI and GRE acceleration improve GRE and MPLS-over-GRE performance.
[See gre-performance-acceleration and show security flow status.]
- Multicast support in SD-WAN deployments (NFX150,
NFX250, NFX350, SRX300, SRX320, SRX340, SRX345, SRX380, SRX550M, SRX4100, SRX4200,
SRX4600, and vSRX)—Starting in Junos OS Release 21.2R1, we've added support for
multicast traffic on security devices in Provider Edge (PE) for SD-WAN deployments. The
support for multicast traffic is available when the security device is operating with
forwarding option set as flow-based.
Support for multicast traffic results in bandwidth preservation and more efficient traffic flows.
[See mode (Security Forwarding Options) and Virtual Routing and Forwarding Instances in SD-WAN Deployments.]