Cannot Connect S6700 Trunk between Gigabyte port to 100Mb port of Cisco 2960

Hi,

You need tos disable auto-negotiation on the Huawei switch before you can change the speed.

Use the "undo negotiation auto" command.

You can then use the "speed" and "duplex" commands to set the speed you require.

Regards Nigel

Hi Nigel, 

Thanks for your quick response.

I had already tried to undo the negotiation, but unfortunately this gives no result.

Displaying the port gives: 

Speed : 1000,   Loopback: NONE
Duplex: FULL,   Negotiation: DISABLE
Mdi   : AUTO,   Flow-control: DISABLE

Setting the Speed (or duplex) gives: 

[TTLab_Core-XGigabitEthernet1/0/17]speed ?

                                                   ^
Error: Unrecognized command found at '^' position.
[TTLab_Core-XGigabitEthernet1/0/17]

Any suggestions? 

Regards, 

Sjoerd 

Hi Sjoerd,

I am not an expert on the specific hardware and I think it will probably depend on the type of SFP you have installed but I don't thinlk all the SFPs actually support speeds below 1G!

That certainly seems to be indicated by the responses you are getting from the device, the fact that it is not giving you the speed option suggests to me that it does not support reducing the speed below 1G.

Regards Nigel

Hi Nigel, 

Today was the first this week i am in the office. 

The SFP we are using are the: Finisar FCMJ-8521-3 Active Copper. 

Do you know if these SFP's support 100mb? 

Regards, 

Sjoerd