Resolved Issues: 21.4R1

Egress IP MTU exception and fragmentation are not supported. PR1558327

High CPU seen mostly with systemd with 4000 mac-vrf instances activate or deactivate. PR1581283

PICD restart or crash might result in junk statistics for carrier transition. PR1594253

Default CoS profiles applied to Layer 2 VPN and Layer 2 circuit logical interfaces are not shown in the output of run show class-of-service-interface IF. PR1596342

Few label switched interfaces (LSI) MACs do not get properly learnt in the software with 8000 VPLS instance scale. PR1597125

In scaled scenarios (4k BDs, IRBs), with restart of l2ald and pfe daemons, arpd and ndp daemon crash is observed and it recovers by itself and no functionality impact is seen. PR1598217

The egress access control list (ACL) actions are skipped for Broadcast, Unknown Unicast, and Multicast (BUM) traffic and does not hit. PR1598489

The Address Resolution Protocols (ARPs) might not be resolved on the integrated routing and bridging (IRB) interface which is replaced by another IRB interface. PR1600209

For ACX7100-32C and ACX7100-48L routers, the Voltage Threshold Crossed alarm might be observed sometimes. PR1601493

Traffic loss might be observed when evo-pfemand restarts. PR1608004

Default dscp-ipv6-compatibility classification does not work when deactivating and then activating dscp-ipv6 classification scenario. PR1614249

PCI device missing FPC[0] FPC supercon FPGA alarms are observed. PR1615519

On performing request system snapshot, the snapshot message is not captured in the /etc/motd file. PR1618946

On ACX7100-32C and ACX7100-48L, the show system firmware command some times might show current firmware version for FPC 0 as blank. PR1618949

Memory leak is observed in packet send path. PR1620610

Lookups command might not work. PR1608401

The file copy command does not accept HTTPS URLs. PR1596881

The file copy failure is seen via netconf or operation script. PR1597550