01-11-2018 05:51 AM - edited 03-01-2019 05:23 PM
Hello
i've problem with my Cisco WS C3750G-48TS and SFP CISCO GLC-LH-SM
when i put my SFP into port 49 , my cisco says:
Description: Gi1/0/49: This port has been disabled because Non Compliant Gigabit Interface Converter (GBIC) connector detected
and port has beed disabled . I checked in cicso and my SFP is in compatibile list
what can i do to enable port and uplink ???
show interface command:
show interface gigabitEthernet 1/0/49
GigabitEthernet1/0/49 is down, line protocol is down (err-disabled)
Hardware is Gigabit Ethernet, address is 1caa.07d1.8b31 (bia 1caa.07d1.8b31)
Description: 1
MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive not set
Auto-duplex, Auto-speed, link type is auto, media type is 1000BaseLX SFP
input flow-control is off, output flow-control is unsupported
in other side i have uniFi US-16-XG with UF-SM-10G transc. and port set manually to 1000
please help
Solved! Go to Solution.
01-12-2018 03:10 AM
01-11-2018 08:25 AM
01-11-2018 02:23 PM - edited 01-11-2018 10:34 PM
It is an original cisco sfp module
How to run this command on the interface?
Is it possible that ios version is non comaptibile ?? minimum cisco soft required for GLC-LH-SM is 12.1.(14)EA1. On my switch is 12.2(50)SE5.
also check this sfp module in catalyst 2960-48TC (also compatibile) and there no errors, link is OK
01-11-2018 11:43 PM - edited 01-11-2018 11:55 PM
hello again
i changed port status from err-dissabled to enabled via shut/no shut commands.
now i have enabled ports but still no link between CISCO 3750 and Ubiquiti XS-16
now show interface command shows:
GigabitEthernet1/0/49 is down, line protocol is down (notconnect)
Hardware is Gigabit Ethernet, address is 1caa.07d1.8b31 (bia 1caa.07d1.8b31)
Description: 1
MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive not set
Auto-duplex, Auto-speed, link type is auto, media type is 1000BaseLX SFP
what can i do to link up?
ps: my CISCo 3750 is in stack
01-12-2018 12:28 AM
01-12-2018 12:58 AM
no i don't run this command
the err-disabled port was because i used to test other SFP (port has been disabled and i thougth that enables ayutomaticly :) )
no i use original cisco SFP, so i found that err-disabled ort mus be shut/no shut - so i done.
I wonder if the CISCO configuration does not affect the activiti
on cisco i configured in CiscoNetwork Assistant :
1) aggregation between ports Gi1/0/49 and Gi2/0/49 (etherchanell)
2) trunk on this etherchannel
on ubiquiti also aggregation , trunk and mannualy set speed to 1000
it's hard to check connection beetwen 2960 and 3750 because i have it in a different localization
01-12-2018 01:08 AM
01-12-2018 01:21 AM
i'll check and let you know
i'll also try connect single ports without etherchannel
switches are in one room and connection via RJ45 is OK (but i want connect them via SFP)
sorry for my english :)
01-12-2018 02:22 AM
tested few configuration on other switches and i've few conclusions
1. I changed switches to CISCO 2960 and UniFi US-48 with 2 ports SFP and 2 ports SFP+
2. connection beetwen UniFi SPF+ and Cisco SPF in different configurations - NO LINK
3. connection beetwen UniFi SPF and Cisco SPF - LINK LINK LINK :)
so i think ther is a problem, because US-16-XG hav only SFP+ ports :(
01-12-2018 02:35 AM
01-12-2018 03:06 AM
hi again
when i set 1000mb on unifi sfp+ - port is seems to be linked (light green), but on other side on cisco
i haven't link
unfortunately on cisco SFP port i cann't set speed to 1000 -in web gui i have only auto speed
yes, i know that unifi have 4 cooper ports :) probably i'll link switches via cooper ports at least (tested, worked)
thanks for helping me anyway
01-12-2018 03:10 AM
01-15-2018 12:42 AM
I solved the problem ...
the problem was in the Unifi 10G transceiver
in SPF+ i put the cisco 1G transciever and everything started as well :))
now i have 1G SFP transc. on both sides and link is OK
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