Switch is getting hang

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Hi I have a stack of 450e switches which is getting hang and also if save the configuration it takes lots of time. i need suggestion on this to solve the issue
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Anubhav

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Posted 5 years ago

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Ron Huygens, Employee

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Hello,

There are too many questions and area's that we can look at to determine what is the root cause.

I suggest that you contact the Extreme TAC.

Regards
Ron
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Paul Russo, Alum

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Anubhav

Assuming that the config is corrupt you can log into the bootrom of the switch and load a different config or default . To get into the bootrom hold down the space bar and reboot the switch. Continue to hold down the space bar and you will get the bootstrap. Type boot and continue to hold the space bar and you will then get into the bootrom. To load default type in config none then reboot the switch.

I do agree with Ron calling TAC is a good call with troubleshooting as it will be resolved quicker.
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Sumit Tokle, Alum

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What is the TOP command output? which process is going high? When you do save, what process is going high? you open different session and see the process name which continuously utilizing the high CPU. What is the software version running on switch?
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Anubhav

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Hi Sumit i tried the please find the output below:

Mem: 247004K used, 7660K free, 0K shrd, 17464K buff, 49084K cached
CPU:  8.5% usr 21.6% sys  0.0% nic 67.2% idle  0.0% io  0.0% irq  2.6% sirq
Load average: 6.40 5.91 5.85 4/176 1983
  PID  PPID USER     STAT   RSS %MEM CPU %CPU COMMAND
Mem: 247064K used, 7600K free, 0K shrd, 17464K buff, 49084K cached
CPU: 11.1% usr 18.0% sys  0.0% nic 66.1% idle  0.0% io  0.0% irq  4.6% sirq
Load average: 6.37 6.02 5.90 11/176 1985
  PID  PPID USER     STAT   RSS %MEM CPU %CPU COMMAND
 1270     2 root     SW       0  0.0   0  6.9 [bcmRX]
 1419     1 root     S <  25392  9.9   0  6.2 ./hal
 1442     1 root     S     3972  1.5   0  4.9 ./fdb
 1539     1 root     S    21384  8.3   0  3.6 ./etmon
 1215     2 root     RW<      0  0.0   0  3.2 [bcmLINK.0]
 1480     1 root     S     4932  1.9   0  1.6 ./mcmgr
 1421     1 root     S     1764  0.6   0  0.9 ./nodemgr
 1985  1984 root     R      776  0.3   0  0.9 top -d 3
 1749     1 root     S      752  0.2   0  0.9 ./exsshd
 1255     2 root     DW<      0  0.0   0  0.9 [tocpd_tx]
 1219     2 root     RW<      0  0.0   0  0.9 [bcmLINK.1]
 1518     1 root     S     3544  1.3   0  0.3 ./acl
 1431     1 root     S     2412  0.9   0  0.3 ./aaa -t random
 1760  1059 root     S     1304  0.5   0  0.3 /exos/bin/exsh
 1208     2 root     SW<      0  0.0   0  0.3 [bcmCNTR.0]
 1220     2 root     SW<      0  0.0   0  0.3 [bcmASYNC]

Image   : ExtremeXOS version 12.5.4.5 v1254b5-patch1-13 by release-manager

As of now switch is working fine but some time if i type show temperature command then switch shows " command timeout ". Also some PC's not getting the IP directly connected to this switch, if try to save config then process never complete and doted (Saving config ............) line goes so long

Thanks
Anubhav




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Sumit Tokle, Alum

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Are  [bcmRX], HAL and FDB process  constantly utilizing the switch CPU?
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Anubhav

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Hi so any suggestion on this.....
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Sumit Tokle, Alum

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Please contact TAC to narrow down ASAP.