Stacked switches and teamed NICs

[RMS3]

Hi all,

I have two 9200 switches stacked and would like to connect teamed nic ports of a server. I have the interfaces configured in LaCP and on the server side also I have teamed ports using LaCP . The issue is that one nic card is showing 1G speed while the other is showing 100M.

Can someone please explain why this is happening and if this is normal?

[marce1000]

                - Are you sure that the interfaces at the server side are operating normally ?

 M.

[RMS3]

Hi,

Thanks for the response,yes they are working fine.

The switch independent configuration works fine shows 1G on both interfaces but the issue is when switches are stacked.

[marce1000]

 - Check logs on the switches (both)  when these connections are made ; same on  sever, like for instance on Windows use eventvwr and look for networking events

 M.

[Reza Sharifi]

Hi,

Can you post "sh run" and "sh etherchannel summary" from the stack? Also, are you connecting the stack to VM switches?

HTH

[RMS3]

Hello everyone,

A summary of the steps I tried:

1.set the speed of the port to 1G on the switch and server. That didn't help,the interface on the server for disconnected.

2.Upon checking sh int I realised one of the ports are suspended,not sure why.

Attached are the ether channel summary and the sh int details of both ports that are connected to the server. The port channel summary has also been included.

The server is windows based and I have selected LACP in the teaming drop down.

Any help would be highly appreciated.

Thanks 

[Reza Sharifi]

Hi,

Can you post the output of "sh run" or show run interface g1/0/5 and 2/0/9?

 Members in this channel: Gi2/0/9 

The PO has only one member and that is 2/0/9

HTH

[RMS3]

Hi

Attached are the show interface outputs.

I've also attached the log that is displayed when the teamed ports are connected to the switch.

In my observation one port has speed of 1G and the other goes into 100M. Everytime I disconnect and reconnect the port that has 1G changes.

[Reza Sharifi]

Yes, the issue is with 1/05, as it shows it being 100Mb and not Gig, and that is causing mismatch on the PO. For testing, can you try a different interface e.g.,. 1/0/6 or 1/0/7?

Also, one more output "sh run int po3"

HTH 

[RMS3]

Thank you for the suggestions @Reza Sharifi .

I did try that as well, the issue persists if I connect the second patch cord to any of the ports on the stacked switch.

If I connect it to a completely different switch and set the teaming as switch independent both ports work on 1G each.

[Reza Sharifi]

Thanks for the info! This maybe a software bug if it happens with all the ports on that first switch in the stack. 

Can you try one more thing:

delete po3 completely and take the physicals ports 1/0/5 and 2/0/9 out of PO3. So, no PO at all. Now, follow these steps and create a new PO.

Config t

Interface gi2/0/9

chrannel-grpup 10 mode active

same for 1/0/5

This config above should create PO 10 for you.

Now, go to PO 10 interface 

interface PO10

no sh

and now look at the PO summary and see if all interfaces are up.

HTH

[RMS3]

Hi Reza,

I tried connecting to another port and adding that port to ether channel but there is an error as I'm doing it 

Images of requested output attached ,I've also attached the error that's visible on the server side 

[balaji.bandi]

its shows as suspended due to mismatch of speed  - ?

[RMS3]

To add to the above points,on the server side there is an error that states LACP negotiation failed.

[MHM Cisco World]

hardcode the speed under the PO
may be the port member is 1G but the PO still have speed 100M