- Introduction
- play_arrow Junos OS Release Notes for cSRX
- 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 Junos OS Release Notes for MX Series
- play_arrow What's New
- play_arrow What's New in 21.4R3
- What's New in 21.4R2
- play_arrow What's New in 21.4R1
- Hardware
- Architecture
- Chassis
- EVPN
- High Availability
- IP Tunneling
- Junos Telemetry Interface (JTI)
- Layer 2 VPN
- Interfaces
- MPLS
- Multicast
- Network Address Translation (NAT)
- Operation, Administration, and Maintenance (OAM)
- Platform and Infrastructure
- Routing Protocols
- Source Packet Routing in Networking (SPRING) or Segment Routing
- Services Applications
- Software Defined Networking (SDN)
- Software Installation and Upgrade
- Subscriber Management and Services
- VPNs
- Additional Features
- 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 NFX 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 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 21.4R3
- play_arrow What's New in 21.4R2
- play_arrow What's New in 21.4R1
- 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 Junos OS Release Notes for SRX Series
- play_arrow What's New
- play_arrow What's New in 21.4R1
- Application Identification (AppID)
- Authentication and Access Control
- Chassis
- Chassis Cluster-specific
- Flow-Based and Packet-Based Processing
- Hardware
- J-Web
- Network Address Translation (NAT)
- Platform and Infrastructure
- Software Installation and Upgrade
- Unified Threat Management (UTM)
- Additional Features
- 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 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
- Requesting Technical Support
- Revision History
Resolved Issues: 21.4R2
General Routing
ACX710 running Junos OS Release 21.2R1 onwards might experience kernel crash. PR1608852
Traffic might be dropped on ACX5448 and ACX710. PR1612026
ACX5448: CFMD core files might be seen if CCM configuration is changed from ae ifl to physical ifl, and if the physical ifl was previously part of ae bundle. PR1612212
In ACX5448, at rates above 4GB, there might be mismatches in statistics between the physical and logical interfaces. PR1614550
Traffic might not be forwarded after failover in L2circuit hot standby mode. PR1616892
On ACX5448 and ACX710 platforms with Layer 3 VPN scenarios after multiple core link or protocol flaps, the errors might be observed. PR1621425
ACX5448 CoS - EXP rewrite is not working in layer 3 VPN scenario when mf filter is configured. PR1623922
On ACX5000 Local fault and Remote fault signaling is not logged on /var/log/messages. PR1624761
Unicast packet loss might be observed due to control-word configuration. PR1626058
VPLS traffic loss might be observed post route flap. PR1626267
PFE might crash after device reboot or PFE restart. PR1626503
ACX2000: Output packet statistics are not incremented on the unit even after configuring statistics. PR1627040
Multicast traffic drop might be seen if IGMP snooping is enabled for VLAN. PR1628600
ACX5048 filters reporting TCAM errors are not installed in hardware after the upgrade from Junos OS Release 17.4R2-S8 to Release 20.4R3. PR1630280
ACX710 running G.8275.2 stuck at PTP Acquiring state if the connection is through some timing unaware nodes. PR1632761
Speed 10m configuration error on ACX5048 and ACX5096 platforms. PR1633226
The storm-control rate-limit might not work with VPLS policer under IFL. PR1633427
DHCP clients might not come online for IRB+VLAN/EVPN scenario. PR1633778
IS-IS last transition time never increments. PR1634747
IPv6 BFD session over AE interface might remain down on ACX5448/ACX710 platforms. PR1635020
The LACP delay might be observed with an "aggregate wait time" of more than 1 second. PR1635763
ACX5448 PEM overload alarm threshold is incorrect. PR1636222
Locally switched traffic might be dropped on ACX5448 with ESI configured. PR1638386
Layer 3 interface creation might fail on the ACX5448 and ACX710 platforms. PR1638581
High priority packets might be dropped on ACX5448 platform. PR1642187
Platform and Infrastructure
vmxt_lnx core file is found @ topo_get_link jnh_features_get_jnh jnh_stream_attach. PR1638166
Routing Protocols
For prefixes leaked from BGP to IS-IS, the P flag will be set for Prefix-SID advertised from IS-IS. PR1627322