Hi, we have a stack of 2 x WS-C3750X-48P switches with a 10 gigabit module in each: When I run a show inventory I can see everything except for the LRM SFP within the 10 gigabit module in the second stack member. See below:
Cisco IOS Software, C3750E Software (C3750E-UNIVERSALK9-M), Version 15.2(3)E2, RELEASE SOFTWARE (fc1)
#sh switch service-modules
Switch/Stack supports service module CPU version: 03.07.02.WAL
Switch# H/W Status (CPU/FPGA) CPU Link Version
1 OK 58C/70C connected 03.07.02.
2 OK 69C/71C connected 03.07.02.
#sh interfaces transceiver
If device is externally calibrated, only calibrated values are printed.
++ : high alarm, + : high warning, - : low warning, -- : low alarm.
NA or N/A: not applicable, Tx: transmit, Rx: receive.
mA: milliamperes, dBm: decibels (milliwatts).
Temperature Voltage Tx Power Rx Power
Port (Celsius) (Volts) (dBm) (dBm)
--------- ----------- ------- -------- --------
Te1/1/1 46.1 3.27 -2.9 -1.9
Te2/1/1 46.0 3.24 -2.1 -0.6
#sh interfaces transceiver properties | begin 2/1/1
Name : Te2/1/1
Administrative Speed: 10000
Administrative Duplex: full
Administrative Auto-MDIX: on
Administrative Power Inline: N/A
Operational Speed: 10000
Operational Duplex: full
Operational Auto-MDIX: off
Media Type: SFP-10GBase-LRM
#sh int status
Port Name Status Vlan Duplex Speed Type
Te2/1/1 Trunk connected trunk full 10G SFP-10GBase-LRM
Te2/1/2 notconnect 1 full 10G Not Present
NAME: "1", DESCR: "WS-C3750X-48P"
PID: WS-C3750X-48PF-S , VID: V02 , SN: FDO1610V1H8
NAME: "Switch 1 - Power Supply 1", DESCR: "FRU Power Supply"
PID: C3KX-PWR-1100WAC , VID: V02L , SN: LIT16012789
NAME: "Switch 1 - Power Supply 2", DESCR: "FRU Power Supply"
PID: C3KX-PWR-1100WAC , VID: V02L , SN: LIT16012775
NAME: "Switch 1 - FRULink Slot 1 - FRULink Module", DESCR: "FRULink 10G SM Module"
PID: C3KX-SM-10G , VID: V01 , SN: FDO1548160F
NAME: "TenGigabitEthernet1/1/1", DESCR: "SFP-10GBase-LRM"
PID: SFP-10G-LRM , VID: V02 , SN: AGD1607V09N
NAME: "2", DESCR: "WS-C3750X-48P"
PID: WS-C3750X-48PF-S , VID: V02 , SN: FDO1610V1HB
NAME: "Switch 2 - Power Supply 1", DESCR: "FRU Power Supply"
PID: C3KX-PWR-1100WAC , VID: V02L , SN: LIT16012796
NAME: "Switch 2 - Power Supply 2", DESCR: "FRU Power Supply"
PID: C3KX-PWR-1100WAC , VID: V02L , SN: LIT16012780
NAME: "Switch 2 - FRULink Slot 1 - FRULink Module", DESCR: "FRULink 10G SM Module"
PID: C3KX-SM-10G , VID: V01 , SN: FDO1548164Z
Where is the second LRM? The inventory command doesn't show it.
It is a Cisco LRM just like the one in slot TE 1/1/1 but it doesn't show up.
Appears to be a bug :)
Have you tried to move the SFP-10G-LRM that is not recognize to another module (swap it with the working one).
This will tells you if the module might be faulty or if it is the SFP.
Have a good day.
Hi, this is a cosmetic error. The SFP is working and is actively a part of the etherchannel. I just can't see the SFP when I run a "show inventory". So, I believe it to be a cosmetic bug
Hi, originally it was but the switches have been power reset on a number of occasions since.
Please note the SFP is working fine, we just can't see it in "show inventory" and thus we can't see the serial number for maintenance purposes.
I know it's an old thread but maybe someone is still searching for the answer:
so : first enter "session 2" command to enter on the CLI of switch 2 from stack , then when in the CLI of switch 2 : "show inventory"
Try to check with the comman show inventory (raw|entity) these are more specific
(Optional) Retrieves information about all of the Cisco products—referred to as entities—installed in the Cisco networking device, even if the entities do not have a product ID (PID) value, a unique device identifier (UDI), or other physical identification.
(Optional) Name of a Cisco entity (for example, chassis, backplane, module, or slot). A quoted string may be used to display very specific UDI information; for example "sfslot 1" will display the UDI information for slot 1 of an entity named sfslot.
Hope solve the problem