Description

QFX5k - Switch Unreachable

Symptoms

Switch became unreachable all of a sudden.


  • The switch does not have any console logs available.
  • If logging is stopped across varlog and host-logs it could indicate there could be underlying SSD/hardware issue.


varlog


 

Jul 13 13:45:01 QFX eventd: sendto: No route to host

Jul 13 14:00:01 QFX eventd: sendto: No route to host

Jul 13 15:37:28 QFX eventd: sendto: No route to host

Jul 13 15:37:28 QFX eventd[18231]: SYSTEM_ABNORMAL_SHUTDOWN: System abnormally shut down

Jul 13 15:37:28 QFX eventd[18231]: SYSTEM_OPERATIONAL: System is operational

Jul 13 15:37:28 QFX jlaunchhelperd[18242]: initializing jlaunchhelperd


 


host-log

 


2025-07-13T13:40:01+00:00 dcpfe0 logrotate: ALERT exited abnormally with [1]

2025-07-13T13:50:01+00:00 dcpfe0 logrotate: ALERT exited abnormally with [1]

2025-07-13T14:00:01.285076+00:00 QFX-node rsyslogd: [origin software="rsyslogd" swVersion="7.4.4" x-pid="18257" x-info="http://www.rsyslog.com"] rsyslogd was HUPed

2025-07-13T14:00:01+00:00 dcpfe0 logrotate: ALERT exited abnormally with [1]

2025-07-13T15:32:39.128146+00:00 localhost.localdomain rsyslogd: [origin software="rsyslogd" swVersion="7.4.4" x-pid="2387" x-info="http://www.rsyslog.com"] start

2025-07-13T15:32:39.128431+00:00 localhost.localdomain kernel: Initializing cgroup subsys cpuset

2025-07-13T15:32:39.128440+00:00 localhost.localdomain kernel: Initializing cgroup subsys cpu

Solution

Power cycle the device to recover.

If problem persist please replace.

Modification History

2025-07-24 : Article Created