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Ethernet Switching

unrequested reboot of EX2300

3 weeks ago

Hi, we have three EX2300 switches (2x 48T , 1x 24P). Today all three switches performed an unrequested reboot, all of them within only some minutes. It was the second time that this happened.

All switches are running "18.3R1.9",

All show "Last reboot reason 0x20000Smiley Frustratedwizzle reboot".

All show "% sysctl hw.re.reboot_reason

hw.re.reboot_reason: 131072".

Any ideas what is going wrong here?

Thank you for your help
Regards

4 REPLIES
Ethernet Switching

Re: unrequested reboot of EX2300

[ Edited ]
3 weeks ago

Just a wild shot in the dark.. Could heat have been the issue ?   See URL as to why im asking / guessing.

Are they all in  a VC ?

What was the uptime on them before ?

show system core-dumps

 

https://forums.juniper.net/t5/Junos/Unusual-Reboot-Reason-on-Juniper/td-p/309913

Code 0 means reboot due to power failure or power cycle.  
Code 1 is  is a reboot triggered by hardware watchdog. 

 

Also seen on an old maillist archive .. not sure it has anything extra to give but ever bit helps..


sysctl hw.re.reboot_reason

The model of routing-engine will determine how interesting this is. If you have 0, it means the reason is unknown.

If you have anything other than 0, send me the output of 'show chassis hardware' and the value.

 

Running that rev on stack of 3400s 9 members deep for a while now and nothing like that..

 

If you dont for some reason want to do push this to jtac .. would you mind just going through the motions and

collecting the data anyways.. This way when someone smarter than I get on the list the data is still there to poll from.

 

https://kb.juniper.net/InfoCenter/index?page=content&id=KB26813&actp=METADATA

Ethernet Switching

Re: unrequested reboot of EX2300

3 weeks ago

Look to see if there are any core dumps from the unexpected reboot.  These can be uploaded to a JTAC case to determine the reason for the problem.

 

show system core-dumps

 

Steve Puluka BSEET - Juniper Ambassador
IP Architect - DQE Communications Pittsburgh, PA (Metro Ethernet & ISP)
http://puluka.com/home
Ethernet Switching

Re: unrequested reboot of EX2300

2 weeks ago

Hi,

 

thank you for your answer.

Unfortunatley no core dumps...

 

show system core-dumps
fpc0:
--------------------------------------------------------------------------
/var/crash/*core*: No such file or directory
/var/tmp/*core*: No such file or directory
/var/tmp/pics/*core*: No such file or directory
/var/crash/kernel.*: No such file or directory
/var/jails/rest-api/tmp/*core*: No such file or directory
/tftpboot/corefiles/*core*: No such file or directory

 

Regards

Ethernet Switching

Re: unrequested reboot of EX2300

2 weeks ago

Hi,

 

thanky ou for your ideas.

 

% sysctl hw.re.reboot_reason

hw.re.reboot_reason: 131072

 

on all switches...

 

Pretty weird...

 

Regards