PFE Restart: Restart forwarding applications for Layer 2 features

When the forwarding applications evo-cda-bt and evo-aftmand-bt restart after failure, the following forwarding applications also restart:

• packetio-bt
• ppman-aft-bt
• evoaft-jvisiond-bt
• aft-sysinfo
• fabspoked-pfe
• securityd

This behavior makes the system more resilient to abnormal termination of the evo-cda-bt and evo-aftmand-bt applications. When these forwarding applications restart, traffic forwarding stops until all applications are back to normal. In Junos OS Evolved releases before Release 24.2R1, the entire chassis would restart if either evo-cda-bt or evo-aftmand-bt failed. To manually restart the evo-cda-bt, evo-aftmand-bt, and packetio-bt applications if they ever leak memory or file handles, use the request system application application-name node nodename restart operational mode command.