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blackangel1
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Joined: Tue Dec 17, 2013 3:39 pm

CRS328-4C-20S-4S+RM + CRS326-24G-2S + RM SFP and SFP+ Module problem

Thu Dec 09, 2021 10:36 am

Hi all
I have this two switches
CRS328-4C-20S-4S+RM
CRS326-24G-2S + RM

and these SFP modules
Ubiquiti UF-RJ45-10G for SFP+ port
Ubiquiti UF-RJ45-1G for SFP port

Mirotik S-RJ01 or S+RJ10 these aren't available

My setup :

CRS328-4C-20S-4S+RM running DHCP on Bridge Name: LANBridge ip 10.10.10.2/24
Bridge ports SFP2 and Combo2
SFP2 negotiation set to 1Gbps
Combo2 negotiation set auto

CRS326-24G-2S + RM
dhcp client on Bridge 1
Bridge1 ports ether1 ether3
ether1 negotiation set to 1Gbps
ether3 connected with my pc

option 1
CRS328-4C-20S-4S+RM SFP2 negotiation set to 1Gbps sonnected to CRS326-24G-2S + RM ether1 negotiation set to 1Gbps
it says link ok but i dont get ip form dhcp

option 2
CRS328-4C-20S-4S+RM Combo2 negotiation set auto connected to CRS326-24G-2S + RM ether1 negotiation set auto (works auto or 1Gbps)
Link ok and i get ip from DHCP

SFP module is not working with auto negotiation

Question is
SFP module are not compatible or I made somthing wrong
 
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Hominidae
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Joined: Thu Oct 19, 2017 12:50 am

Re: CRS328-4C-20S-4S+RM + CRS326-24G-2S + RM SFP and SFP+ Module problem

Thu Dec 09, 2021 3:05 pm

...a lot (at least all I know) of people have tried modules from ubiquiti (note, not ones from other vendors, that are marked generally compatible) and failed.
These buggers are cheap...must be a reason behind that.
Buy the next, marked generic from amazonia or the bay and go with it....or use the 80m version from fs.com...these report to be fine...and cooler
 
blackangel1
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Posts: 16
Joined: Tue Dec 17, 2013 3:39 pm

Re: CRS328-4C-20S-4S+RM + CRS326-24G-2S + RM SFP and SFP+ Module problem

Thu Dec 09, 2021 3:29 pm

Thx for answer

so it means SFP module compatibility problem

ok
I will try to return them and get mikrotik S+RJ10
 
matiss
MikroTik Support
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Posts: 24
Joined: Fri Dec 30, 2016 10:13 am

Re: CRS328-4C-20S-4S+RM + CRS326-24G-2S + RM SFP and SFP+ Module problem

Thu Dec 09, 2021 4:00 pm

Hello, blackangel1

Try apply following configuration to port where the UF-RJ45-1G module is plugged - disabled auto-negotiation, forced speed to 1G, and enabled full-duplex. Module re-plug may be needed.
 
blackangel1
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Topic Author
Posts: 16
Joined: Tue Dec 17, 2013 3:39 pm

Re: CRS328-4C-20S-4S+RM + CRS326-24G-2S + RM SFP and SFP+ Module problem

Fri Dec 10, 2021 2:33 pm

Hello, blackangel1

Try apply following configuration to port where the UF-RJ45-1G module is plugged - disabled auto-negotiation, forced speed to 1G, and enabled full-duplex. Module re-plug may be needed.
as you can see on attached picture
disabling negotation only shows link ok
but i am not getting IP from DHCP
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