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1G Copper SFP on M4300-8X8F Odd Behavior
I am having trouble with some 1G copper SFPs in a M4300-8X8F (XSM4316S) switch (I actually have two of these switches and both of them have the same problem with these SFPs) and was wondering if som...
I'm not sure if you wanted the information on the Copper SFP I am having problems with or the Fiber SFP+ that I mentioned, so I am going to provide the output for a port with a fiber SFP and a port with a copper SFP so that you can see both. I apologize for my confusion.
Port 1/0/1 (contains a 10G Fiber SFP+)
This is the type of SFP that DOES work
(M4300-8X8F) #show fiber-ports optics 1/0/1
Output Input
Port Temp Voltage Current Power Power TX LOS Fault
[C] [Volt] [mA] [dBm] [dBm] Fault Status
-------- ---- ------- ------- ------- ------- ----- --- -------------
1/0/1 19.7 3.345 23.9 -1.915 -3.099 No No No Fault
(M4300-8X8F) #show fiber-ports optics-info 1/0/1
Link Link Nominal
Length Length Bit
50um 62.5um Rate
Port Vendor Name [m] [m] Serial Number Part Number [Mbps] Rev Compliance
-------- ---------------- --- ---- ---------------- ---------------- ----- ---- ----------------
1/0/1 FiberStore 22 11 F1700200006 SFP-10GLRM-31 10300 10GBase-LR
(M4300-8X8F) #show fiber-ports optics-eeprom 1/0/1
Port 1/0/1 vendor_name = FiberStore vendor_sn = F1700200006 date_code = 170929 vendor_pn = SFP-10GLRM-31 vendor_rev = eeprom data = 03 04 07 20 00 00 00 00 00 00 00 06 67 00 00 00 ... ........g... 16 0b 00 00 46 69 62 65 72 53 74 6f 72 65 20 20 ....FiberStore 20 20 20 20 00 00 00 00 53 46 50 2d 31 30 47 4c ....SFP-10GL 52 4d 2d 33 31 20 20 20 20 20 20 20 05 1e 00 ae RM-31 .... 00 1a 00 00 46 31 37 30 30 32 30 30 30 30 36 20 ....F1700200006 20 20 20 20 31 37 30 39 32 39 20 20 68 90 01 65 170929 h..e 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
NOTE: Port 1/0/1 is configured as a stack port so no configuration shows up in this next command
(M4300-8X8F) #show running-config interface 1/0/1
!Current Configuration: ! interface 1/0/1 exit
Port 1/0/2 (contains a 1G Copper SFP)
This is the type of SFP that does NOT work
NOTE: This SFP is not fiber so these are all N/A
(M4300-8X8F) #show fiber-ports optics 1/0/2
Output Input
Port Temp Voltage Current Power Power TX LOS Fault
[C] [Volt] [mA] [dBm] [dBm] Fault Status
-------- ---- ------- ------- ------- ------- ----- --- -------------
1/0/2 N/A N/A N/A N/A N/A N/A N/A No Fault
(M4300-8X8F) #show fiber-ports optics-info 1/0/2
Link Link Nominal
Length Length Bit
50um 62.5um Rate
Port Vendor Name [m] [m] Serial Number Part Number [Mbps] Rev Compliance
-------- ---------------- --- ---- ---------------- ---------------- ----- ---- ----------------
1/0/2 FiberStore 0 0 A07C0700046 SFP-GB-GE-T 1300 0000 1000T
(M4300-8X8F) #show fiber-ports optics-eeprom 1/0/2
Port 1/0/2 vendor_name = FiberStore vendor_sn = A07C0700046 date_code = 171207 vendor_pn = SFP-GB-GE-T vendor_rev = 000 eeprom data = 03 04 00 00 00 00 08 00 00 00 00 01 0d 00 00 00 ................ 00 00 64 00 46 69 62 65 72 53 74 6f 72 65 20 20 ..d.FiberStore 20 20 20 20 00 00 09 5b 53 46 50 2d 47 42 2d 47 ...[SFP-GB-G 45 2d 54 20 20 20 20 20 30 30 30 30 00 00 00 d3 E-T 0000.... 00 01 00 00 41 30 37 43 30 37 30 30 30 34 36 20 ....A07C0700046 20 20 20 20 31 37 31 32 30 37 20 20 00 00 00 5f 171207 ..._ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
NOTE: VLAN 3 is my management VLAN
(M4300-8X8F) #show running-config interface 1/0/2
!Current Configuration: ! interface 1/0/2 link debounce time 5000 spanning-tree edgeport switchport mode access switchport access vlan 3 exit
Thanks for your help :)
Hi dentspen,
Sorry to make you confusion.
I just want to get the info for the issue port. I mean please insert the fiber module and cable to the issue port, and then run the command to get the detailed info.
Thanks.
Thank you for your response, Retired_Member,
The issue I have is with a Copper Ethernet (RJ45) SFP module, not with a fiber module. I have plugged the copper module into port 1/0/2. Here are the outputs from the commands that you asked for:
NOTE: This SFP is not fiber so these are all N/A
(M4300-8X8F) #show fiber-ports optics 1/0/2
Output Input Port Temp Voltage Current Power Power TX LOS Fault [C] [Volt] [mA] [dBm] [dBm] Fault Status -------- ---- ------- ------- ------- ------- ----- --- ------------- 1/0/2 N/A N/A N/A N/A N/A N/A N/A No Fault(M4300-8X8F) #show fiber-ports optics-info 1/0/2
Link Link Nominal Length Length Bit 50um 62.5um Rate Port Vendor Name [m] [m] Serial Number Part Number [Mbps] Rev Compliance -------- ---------------- --- ---- ---------------- ---------------- ----- ---- ---------------- 1/0/2 FiberStore 0 0 A07C0700046 SFP-GB-GE-T 1300 0000 1000T(M4300-8X8F) #show fiber-ports optics-eeprom 1/0/2
Port 1/0/2 vendor_name = FiberStore vendor_sn = A07C0700046 date_code = 171207 vendor_pn = SFP-GB-GE-T vendor_rev = 000 eeprom data = 03 04 00 00 00 00 08 00 00 00 00 01 0d 00 00 00 ................ 00 00 64 00 46 69 62 65 72 53 74 6f 72 65 20 20 ..d.FiberStore 20 20 20 20 00 00 09 5b 53 46 50 2d 47 42 2d 47 ...[SFP-GB-G 45 2d 54 20 20 20 20 20 30 30 30 30 00 00 00 d3 E-T 0000.... 00 01 00 00 41 30 37 43 30 37 30 30 30 34 36 20 ....A07C0700046 20 20 20 20 31 37 31 32 30 37 20 20 00 00 00 5f 171207 ..._ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
NOTE: VLAN 3 is my management VLAN
(M4300-8X8F) #show running-config interface 1/0/2
!Current Configuration: ! interface 1/0/2 link debounce time 5000 spanning-tree edgeport switchport mode access switchport access vlan 3 exit
Thanks for your helpOk, understand.
Just correct, SFP is only for Fiber module type, if it's copper, we just say copper cable(cat5 or cat6). And for copper cable, it's no speed concept, just based two device negotiate.
Any way, let's check with the copper port.
As all port of M4300-8X8F is support 10G speed, if you connect to 1G port, it also can up with 1G speed, but the light is orange, not green(only when up with 10G speed, it will show green).
So could you please run command as 'show port 1/0/2', and we can check the port speed.
Retired_Member
Sorry, but I am going to have to disagree with you. An SFP does not have to be fiber. SFP stands for Small Form-factor Pluggable, and it is just a standard that the different modules you can plug in to the switch have to follow to be usable. The majority of SFPs definitely are fiber, but there are Ethernet ones as well. For instance, Netgear makes the AGM734, which is a 1G RJ45 copper SFP (see attached picture). I am using a AGM734 compatible SFP from a company called Fiberstore (https://www.fs.com/products/20753.html). That is what I am having an issue with. We are also using a fiber SFP (https://www.fs.com/products/15493.html) from the same company with no issues and the built-in copper ports also work with no issue. The only issue I have is with the 1G copper Ethernet RJ45 SFP. I currently have that SFP attached to port 1/0/2, so all of the information for port 1/0/2 above is for that copper SFP module.
The problem we are having is that the link will not stay up on the Copper SFP. The link light does come on briefly (it is orange for 1G) and I can get some packets through it, but after a few seconds, it restarts (goes completly dark for a few seconds and then starts back up, creates the link, and then drops again).
When I have device plugged into the SFP these are the results I get:
(M4300-8X8F) #show port 1/0/2
Admin Physical Physical Link Link LACP Flow Intf Type Mode Mode Status Status Trap Mode Mode --------- ------ --------- ---------- ---------- ------ ------- ------ ------- 1/0/2 Enable Auto 1000 Full Up Enable Enable Disable
Interestingly I get these same results whether the link light is on or not. Until I physically disconnect the cable, I see that the link is up and the speed shows 1000 at Full duplex even if the link light is not on.
Thanks for your help :)
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