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Known Limitations

Learn about known limitations in Junos OS Evolved Release 21.3R2 for ACX Series routers.

For the most complete and latest information about known Junos OS Evolved defects, use the Juniper Networks online Junos Problem Report Search application.

General Routing

  • ACX7100-32C :: Cross ping fails to another device with packet size above 2400 bytes and Jumbo frame is enabled. When PTP is enabled, ACX7100-32C port 31 will be configured to 1G. Packet Forwarding Engine chip from vendor only supports to 10G, so the speed is converted from 10G to 1G on external PHY, but there is one limitation: it can only support frame size to 2000 bytes officially, so jumbo frame cannot be supported on port 31 when PTP mode is enabled. PR1593015