Problem with SG200-26G

[degaudenzi]

Hi everyone,

my switch cisco small business SG200-26G  in modality link aggregation LACP the Wake On Line doesn't work !!

(WOL work only in link aggregation non LACP..) I already upgrade the latest firmware but not resolved..

Do you know how to point out me as to do for resolving this problem?

Any feedback highly appreciated!

Many thanks!

[janickle]

Hi,

I’m not sure about the exact issue you may be running into.  There was a post that covered WOL posted here:

https://supportforums.cisco.com/message/3739621#3739621

If this however does not resolve your issue please let me know and I will be happy to look into further for you.

Thank you,

Jason Nickle

[degaudenzi]

Hi Jason,

I cannot apply the solution of the post in how much I don't have to wake up from  different vlan. Besides in the menu SG200 are absent the possibilities of configurations udp..

I have to turn on  from sleep my NAS and WorkStation inside the single subnet..   

All works if I connect the nas and the ws in mode single link lan..   

It doesn't work If i connect in mode dual link LACP.. 

The creation / configuration of LAG is simple, but thing I have to do for working WOL  on LACP on SG200?? 

NAS (qnap 669 pro) and WS (with intel I350-T2) have the address static from dhcp on router..

thank you,rudi

[Tom Watts]

Hi Rudi, I did some searching around, this seems to be a common problem for all vendors.

Netgear topic

http://www.readynas.com/forum/viewtopic.php?f=7&t=56090

HP topic

http://forums.whirlpool.net.au/archive/1499385

Here's an old post from Dave Hornstein (Cisco)

https://supportforums.cisco.com/thread/2100652

So it seems to be a bit of a mystery. I couldn't begin to speculate why the LACP implementation wouldn't work. It may have something to do with the LACPDU's, may be it has something to do with spanning tree TCN or configuration BPDU. It may also have something to do with the NAS being in some sort of passive mode "speak when being spoken" concept.  Other external factors may be EEE (energy efficient ethernet).

One interesting idea, see if you can make your NAS active and use the switch passive (join NAS LACP). If your NAS advertised the link bonding and the switch joined through LACP, does the WOL work then? If so, it would indicate a potential problem with the NAS receiving the LACPDU and the magic packet concurrently.

This may also be something that is counter-intuitive, as WOL is intended to obviously, wake up devices. The magic packet may not correctly work if LAG isn't fully established since the device is not in a fully operational state.

-Tom
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[degaudenzi]

Tom, 

I have been able to make this test:         

Qnap and Intel configured in mode LACP (802.3ad), while SG200 configurated two trunk LAG no LACP:         

Good test: udp on port 9 transit - Both the Intel that their Qnap they wakes up! (try only for test - in such way it is not possible to work..)         

This confirmation that switch doesn't develop the duty when it configured mode LACP..  

Team Cisco smb discloses/solve the mystery with new firmware.. :-) ? 

rudi