Hi,
I recommend you to use FXP0 interface only for management. Kindly use any of the GE-0/0/0, 1, & 2 to configure syslog, authentication and DNS lookups.
You can configure the Syslog logging in the stream mode following the below documents. This will help you to offload the Routing engine and will forward all the syslog related traffic from Packet forwarding engine.
+ Syslog configuration:
# https://kb.juniper.net/InfoCenter/index?page=content&id=kb16502
+ Setting the System to Stream Security Logs Through Revenue Ports:
# https://www.juniper.net/documentation/en_US/junos/topics/task/configuration/security-system-stream-security-log-revenue-port-setting.html
+ Forward traffic logs from an SRX device using the stream mode
# https://kb.juniper.net/InfoCenter/index?page=content&id=KB16224&actp=METADATA
Please let me know if you have any queries.
-Regards,
Rishi
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