3850 - 12S GLC-LH-SMD notconnect

[ilker.korkmazer]

Dear Network Admins,

I have a problem about uplink port that is connected between cisco 3850 and mpls panel. I used GLC-LH-SMD sfp by doing this but releated uplink port notconnect.

let me say interesting thing, normally HP switch is connected to mpls like cisco 3850, it is working fine, i mean used HP SM sfp for HP switch uplink port and it is working fine. Then i connected it on cisco 3850s by ame sm cable that is coming from mpls panel, it seems noconnected, also changed sfp cisco glc-lh-smd by doing this. Below is configuration;  please help me..

CİSCO 3850;

Gi1/0/12                     notconnect   1            full   1000 1000BaseLX SFP

interface GigabitEthernet1/0/12
 switchport trunk allowed vlan 500
 switchport mode trunk

[ilker.korkmazer]

i also tried another ports and tx-rx positions and changing sm cable, please tell me different soluton about it

[Georg Pauwen]

Hello,

is the SFP actually recognized by the switch (show version) ? You need XE 3.3.3SE or Denali 16.1.1 for the 3850 to recognize the SFP...

[ilker.korkmazer]

version is Denall - 16.3.5

[ilker.korkmazer]

Switch Ports Model              SW Version        SW Image              Mode
------ ----- -----              ----------        ----------            ----
*    1 20    WS-C3850-12S       16.3.5            CAT3K_CAA-UNIVERSALK9 INSTALL
     2 20    WS-C3850-12S       16.3.5            CAT3K_CAA-UNIVERSALK9 INSTALL

[Georg Pauwen · Accepted solution]

Hello,

try to configure the below on the interface:

3850(config-if)# speed auto
3850(config-if)# duplex auto
3850(config-if)# mdix auto

[ilker.korkmazer]

Hi,

i will try it tomorrow , now call center agents are working HP Switch, if any cut could not be done, i will try it tomorrow after their off time. also inform you

[ilker.korkmazer]

Dear Georg

Thank for your solution, it is solved , i tried "speed nonegotiate" and "mdix auto"and solved:)

[Leo L · Accepted solution]

---

@ilker.korkmazer wrote:

version is Denall - 16.3.5

---

Kindly check the logs of the switch if the port(s) are in error-disable or not (CSCvg95411)?

[ilker.korkmazer]

thank you it is solved