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I get the following message when trying to trace or ping an address to verify routing.
traceroute 220.127.116.11 could not create child process..
What does it mean? I'm i missing something
can you also please paste the output from /var/log/messages while you performed this command
which JUNOS version are you using?
are you using NSM to configure/monitor this switch? There was known issue with EX and NSM. NSM consumed all available processes (file descriptors) on EX. That is why you could see this message. Which can be seen with the following command: show system processes detail.
If this worked for you please flag my post as an "Accepted Solution" so others can benefit. A kudo would be cool if you think I earned it.
That is correct. To expand a little more, it occurred on 2 different versions of JUNOS 9.3r3.8 and 9.5.r.2.7. When you have NSM configured on the EX switches it begins to create additional mgd processes that start to take up all available CPU. I worked with Joseph from JTAC for sometime killing all the processes. Since the EX switches were in a Virtual Chassis it began spawning these additional processes on both the master and back-up (a total of 103 process that we had to kill 1 by 1 since we could not reboot the switches 24x 7 environment). First we removed the NSM config then killed all the process. I was pleasantly surprised that the switch was @ 100% cpu utilization but maintained OSPF adjacencies. But again thanks. Kudos to you.