SG200-08 Firmware Downgrade

[lsgoodwin]

Hi,

I have two identical SG200-08 units, 1 unit has firmware version 1.0.1.0 and the other has firmware version 1.0.5.1 (the lastest firmware - I upgraded this unit 6 months ago).

The unit running the v1.0.1.0 has been running flawless.

The unit running the v1.0.5.1 hasn't been running so flawless, I find that after a couple weeks of use, the HTTP web configuration becomes extremely slow, to the point that it times out while trying to load pages, if I try and ping the unit, I am getting response times of 300-400ms (usually it is 2-3ms). The switch itself seems to pass traffic still but I do get pixelization on my IPTV stream from time to time. If I power cycle the unit, it returns to normal, ping times of 2-3ms, the HTTP web confguration becomes quick, pages load instantly, everything seems to work good for another couple of weeks.

I did happen to stumble upon this post:

https://supportforums.cisco.com/thread/2169061

I haven't noticed if my CPU utilization jumps like mentioned in the above post. I will have to check the next time before I reset the unit.

If I do discover that I have the same CPU utilization issue (to which there seems to be no solution to resolve it), can I downgrade the firmware from 1.0.5.1 to 1.0.1.0?

Thanks!                   

[Tom Watts]

Hi Isgoodwin, go ahead and downgrade to the 1.0.1.0 and reset the unit and see if the problem follows. It's kind of interesting you're having a similar problem as Jasper.

-Tom
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[lsgoodwin]

Hi Tom,

Thanks for the response. Seeing as 1.0.1.0 isn't available for download from the Cisco website, can I grab the firmware from the other unit running 1.0.1.0 via a firmware backup?

Thanks!

[Tom Watts]

I don't know if the 8 port has a second image stored, but if it does, check to see if you can swap active image and see what is there on the switch in question.

-Tom
Please mark answered for helpful posts

[lsgoodwin]

Hi Tom,

There was no second image stored so here is what I did:

I logged into the unit running 1.0.1.0, did a firmware backup.

I logged into the unit running 1.0.5.1 and did a firmware upgrade using the 1.0.1.0 image.

I crossed my fingers, because I wasn't sure if it would brick the unit, and when the unit rebooted it came back up as 1.0.1.0.

All seems well thus far, hopefully Cisco will release 1.0.5.1+ firmware but until that time I plan to stick with 1.0.1.0.

Thanks!

[stianlie1]

Hi,

I had the same issue with two SG200-08, one PoE and one standard, both running 1.0.5.1 firmware. They both showed 99% CPU load constantly.

I tried a bunch of things, but for me "Administration/Discovery - Bonjour" and unchecking Enable (disabling it) sorted this out on both. Based on this I would think that there is an issue with the implementation of this feature.

Regards,

Stian

[bhackbarth]

The dual firmware image feature starts on the 300 series. Good information on the firmware backup from a different device. As long as the image is from same 'series' you should be ok flashing it. I have a few 200 series out there so I'll go check them out.