08-23-2011 08:48 AM - edited 03-07-2019 01:50 AM
Hello,
I have a little problem, i have 4 ports in an port-channel between 3560X & 6504-E switches , after a 3560X reloads one of the ports takes the speed and duplex auto auto the other 3 ports came in full 1000, the 4 ports are configurated with speed nonegotiated. for this mismatch in speed one port is suspended.
So anybody can help me to explain why is happening that the port takes the speed & duplex in auto auto, and what do i should to do in order to fix it?
After a shutdown / no shutdown the interface takes the speed 1000 and the port is up/up connected.
i hope somebody can help me
thanks
08-23-2011 10:34 AM
Avril,
This for sure looks like a bug to me.
Have you tried hardcoding speed/duplex on both ends?
For 3750, there is a bug filed ,
CSCtg71149.
Symptom:
%EC-5-CANNOT_BUNDLE2: Gi1/0/25 is not compatible with Gi1/0/26 and will be suspended (flow control receive of Gi1/0/25 is on, Gi1/0/26 is off)
Conditions:
c3750(A)(Port-channel)====(Port-channel)c3750(B)
port:1000BaseSX SFP
1,c3750(B) reloading or powering off /on
2,c3750(A) output the following message.
Workaround:
I have also referred to the similar cases & this bug doesn't restrict itself to the flow control issue that you see in the above bug, but, to speed/duplex issue. What's the IOS on this 3560 switch?
Regards,
Amit Aneja
08-23-2011 10:50 AM
Hi Amit,
I have not tried hardcoding the interface in both ends.
The version is 12.2(55)SE1
Thanks & Regards
Avril AG
08-23-2011 01:50 PM
As far as I know, you can´t hardcode the speed on a SFP Port.
Amit I´m trying to match a bug with the image Avril posted and found nothing. Did you have any luck?
08-23-2011 01:55 PM
Carlos,
I agree with you, I have to admit that i missed seeing that it was SFP & you cannot hardcode speed on it. I haven't got a chance to look at possible bugs, got busy with something else. If i find anything, i will post it.
thanks for correcting me.
Amit
08-23-2011 02:23 PM
It´s ok, I thank you for the quick response really ☺
I hope we can find something here because the same issue happened to me as well and of course, its an honor to work with you.
Best Regards!
CARLOS CAABEIRO Support engineer
connext by migesa
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ccaabeic@migesa.com.mx
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[cid:image003.gif@01CC61B0.EB8D34E0]
Enviado el: martes, 23 de agosto de 2011 03:56 p.m.
Para: Carlos Enrique Caabeiro Cardenas
Asunto: - Re: %EC-5-CANNOT_BUNDLE2: Gi1/2 is not compatible with Gi1/1 and will be suspended (speed of Gi1/2 is 1000M, Gi1/1 is auto)
Cisco Support Community<>>
Re: %EC-5-CANNOT_BUNDLE2: Gi1/2 is not compatible with Gi1/1 and will be suspended (speed of Gi1/2 is 1000M, Gi1/1 is auto)
created by Amit Aneja<> in LAN, Switching and Routing - View the full discussion<>>>
08-23-2011 03:00 PM
Avril,
I haven't found any other bugs that have been filed for this issue. I would still go with the bug that I mentioned above CSCtg71149. this bug is resolved in 12.2(55)SE03.
Here are some steps that I would like you to try & that would help isolate the issue:
1) If you could, please change the port/SFP on 3560X side that comes up in auto state, this would isolate if we have any issues with the port/SFP. In one of the cases, I have noticed that.
2) IOS upgarde to 12.2(55)SE03, if that works for you, I will test it in my lab as well & I will update the above bug to be considered for 3560X as well...My guess is that this should be the solution if we do not have an issue with the port/SFP as both 3560 and 3750 follow the same IOS code.
Regards,
Amit
08-24-2011 09:11 AM
Hello Amit,
I upgraded the switch with the 12.2(55)SE03 version and doing some test in 5 reloads the port was in full 1000,
I upgraded another box with the same features, but in 6 reloads in 2 times the port was in "auto".
Please any help will be apreciated
Best regards
Avril
08-24-2011 11:00 AM
Hi Avril,
Looks like you are hitting the following defect:
CSCto57605 - after power off/on,the Speed/Duplex of G1/1/1 turns to 'auto/auto'
This will be most likely fixed in 12.2(55)SE4. Please subscribe to bug updates in the Bug Toolkit page.
Best regards,
Andras
08-24-2011 11:05 AM
Yeah, this is the one I have been looking for. Thanks Andras.
08-24-2011 11:21 AM
Guys this is a 3560X, the last update for the IOS train is the 12.2(55)SE3, is it posible to use that one in that switch?
*****correction 12.2(55)SE4 for 12.2(55)SE3, the train goes to SE3 (last update)
08-24-2011 11:25 AM
The latest version for 3560X in 12.2(55)SE branch is 12.2(55)SE3, and SE4 is not yet available.
The bug is fixed in 15.0(1)SE which is already available for download for 3560X switches.
Best regards,
Andras
08-24-2011 11:29 AM
Do you happen to have the link to download it?
Best regards
08-24-2011 11:34 AM
08-24-2011 01:27 PM
Hi,
You may consider you are hitting the CSCtk54457 caveat as per beneath:
CSCtk54457 (Catalyst 3750-X and 3560-X)
On Catalyst 2960-S, 3560-X, and 3750-X switches, some SFP+ module ports do not work correctly with 1 Gigabit SFP modules when the speed for the port and for the connected device is set to nonegotiate. This occurs only on some ports and some SKUs.
The workaround is to set the speed on the SFP interface to autonegotiate by entering the speed auto interface configuration command.
Best regards,
Antonin
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