Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

2960 Model Sw with Part no: WS-C2960-24TC-L has an error.....

Dear All,

I have configured and installed one 2960 Switch part no WS-C2960-24TC-L with GLC-FE-100FX SFP module for MM fiber cable and 2912XL SW on other end.

Now Switch is working fine but continuosly sending log of duplex mismatch. I can not set duples or speed on this port ( port with this SFP module.

So pls suggest me the work around

Dipesh.

2 REPLIES
New Member

Re: 2960 Model Sw with Part no: WS-C2960-24TC-L has an error....

Hi Dipesh,

You cannot set duplex setting in SFP ports,try to configure nonnegotiate on both the end of the SFP.

Ganesh.H

New Member

Re: 2960 Model Sw with Part no: WS-C2960-24TC-L has an error....

dear Ganesh,

Oct 20 13:32:18: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEt

hernet0/1 (not full duplex), with NG32912 FastEthernet0/8 (full duplex).

Oct 20 13:33:18: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEt

hernet0/1 (not full duplex), with NG32912 FastEthernet0/8 (full duplex).

Oct 20 13:34:18: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEt

hernet0/1 (not full duplex), with NG32912 FastEthernet0/8 (full duplex).

Oct 20 13:35:18: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEt

hernet0/1 (not full duplex), with NG32912 FastEthernet0/8 (full duplex).

Oct 20 13:36:18: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEt

hernet0/1 (not full duplex), with NG32912 FastEthernet0/8 (full duplex).

Oct 20 13:37:18: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEt

hernet0/1 (not full duplex), with NG32912 FastEthernet0/8 (full duplex).

Oct 20 13:38:18: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEt

hernet0/1 (not full duplex), with NG32912 FastEthernet0/8 (full duplex).

Oct 20 13:39:18: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEt

hernet0/1 (not full duplex), with NG32912 FastEthernet0/8 (full duplex).

Oct 20 13:40:18: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEt

hernet0/1 (not full duplex), with NG32912 FastEthernet0/8 (full duplex).

Oct 20 13:41:18: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEt

hernet0/1 (not full duplex), with NG32912 FastEthernet0/8 (full duplex).

Oct 20 13:42:18: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEt

hernet0/1 (not full duplex), with NG32912 FastEthernet0/8 (full duplex).

Oct 20 13:43:18: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEt

hernet0/1 (not full duplex), with NG32912 FastEthernet0/8 (full duplex).

Oct 20 13:44:18: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEt

hernet0/1 (not full duplex), with NG32912 FastEthernet0/8 (full duplex).

Oct 20 13:45:18: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEt

hernet0/1 (not full duplex), with NG32912 FastEthernet0/8 (full duplex).

Oct 20 13:46:18: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEt

hernet0/1 (not full duplex), with NG32912 FastEthernet0/8 (full duplex).

Oct 20 13:47:18: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEt

hernet0/1 (not full duplex), with NG32912 FastEthernet0/8 (full duplex).

Oct 20 13:48:18: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEt

hernet0/1 (not full duplex), with NG32912 FastEthernet0/8 (full duplex).

Oct 20 13:49:18: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEt

hernet0/1 (not full duplex), with NG32912 FastEthernet0/8 (full duplex).

Oct 20 13:50:18: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEt

hernet0/1 (not full duplex), with NG32912 FastEthernet0/8 (full duplex).

Oct 20 13:51:19: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEt

hernet0/1 (not full duplex), with NG32912 FastEthernet0/8 (full duplex).

Oct 20 13:52:19: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEt

hernet0/1 (not full duplex), with NG32912 FastEthernet0/8 (full duplex).

Oct 20 13:53:19: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEt

hernet0/1 (not full duplex), with NG32912 FastEthernet0/8 (full duplex).

At Oct 20 13:50:20 , I have configured as below on 2960 and on 2912 there is no option.

interface GigabitEthernet0/1

switchport trunk allowed vlan 1,29

switchport mode trunk

switchport nonegotiate

udld port aggressive

end

but than also yet the same logs continue ......

You can see in logs after 13:50 .....

pls suggest me what to do now.

Dipesh

356
Views
0
Helpful
2
Replies
CreatePlease login to create content