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

Dipesh Patel
Level 2
Level 2

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 2

ganeshhiyer
Level 1
Level 1

Hi Dipesh,

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

Ganesh.H

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

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