SFP transceiver module NOT detected [Stacked Switch] 3850

[Yuslivan]

i have 2 box cisco 3850 with same series and same software version (typical), these switch operating in stack switching mode.

i plug some SFP module in both of them, but when i take look in show inventory command, i see the SFP module only detected in the Active switch, i didn't see in my second switch (standby switch).

please help.

[Leo Laohoo]

What is the exact IOS version the stack is running on?

[carsbe1]

Where do I find the "Stack" IOS version. I use show ver but don't see any stack reference.

[balaji.bandi]

post-show version output here.

#show version

also, post the logs when you insert the SFP on switch1 and switch 2

[carsbe1]

SBSG-3850-24-DISP#show ver
Cisco IOS XE Software, Version 16.06.03
Cisco IOS Software [Everest], Catalyst L3 Switch Software (CAT3K_CAA-UNIVERSALK9-M), Version 16.6.3, RELEASE SOFTWARE (fc8)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2018 by Cisco Systems, Inc.
Compiled Wed 28-Feb-18 21:49 by mcpre

Cisco IOS-XE software, Copyright (c) 2005-2018 by cisco Systems, Inc.
All rights reserved. Certain components of Cisco IOS-XE software are
licensed under the GNU General Public License ("GPL") Version 2.0. The
software code licensed under GPL Version 2.0 is free software that comes
with ABSOLUTELY NO WARRANTY. You can redistribute and/or modify such
GPL code under the terms of GPL Version 2.0. For more details, see the
documentation or "License Notice" file accompanying the IOS-XE software,
or the applicable URL provided on the flyer accompanying the IOS-XE
software.

ROM: IOS-XE ROMMON
BOOTLDR: CAT3K_CAA Boot Loader (CAT3K_CAA-HBOOT-M) Version 3.58, RELEASE SOFTWARE (P)

SBSG-3850-24-DISP uptime is 1 day, 22 hours, 29 minutes
Uptime for this control processor is 1 day, 22 hours, 33 minutes
System returned to ROM by Power Failure or Unknown at 07:52:14 PDT Fri Sep 30 2022
System restarted at 16:08:43 PDT Tue Oct 25 2022
System image file is "flash:packages.conf"
Last reload reason: Power Failure or Unknown

This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.

A summary of U.S. laws governing Cisco cryptographic products may be found at:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html

If you require further assistance please contact us by sending email to
export@cisco.com.

Technology Package License Information:

-----------------------------------------------------------------
Technology-package Technology-package
Current Type Next reboot
------------------------------------------------------------------
lanbasek9 Permanent lanbasek9

cisco WS-C3850-24U (MIPS) processor (revision AB0) with 853158K/6147K bytes of memory.
Processor board ID FCW2131D1HD
5 Virtual Ethernet interfaces
28 Gigabit Ethernet interfaces
4 Ten Gigabit Ethernet interfaces
2048K bytes of non-volatile configuration memory.
4194304K bytes of physical memory.
252000K bytes of Crash Files at crashinfo:.
1611414K bytes of Flash at flash:.
0K bytes of WebUI ODM Files at webui:.

Base Ethernet MAC Address : xx:xx:xx:xx:xx:xx
Motherboard Assembly Number : 73-15804-05
Motherboard Serial Number : FOC21310SR2
Model Revision Number : AB0
Motherboard Revision Number : A0
Model Number : WS-C3850-24U
System Serial Number : FCW2131D1HD

Switch Ports Model SW Version SW Image Mode
------ ----- ----- ---------- ---------- ----
* 1 32 WS-C3850-24U 16.6.3 CAT3K_CAA-UNIVERSALK9 INSTALL

Configuration register is 0x102

[balaji.bandi]

You said stack, but the show version only shows 1 device.

[carsbe1]

No results from console when inserting transceiver.

[Leo Laohoo]

Upgrade the firmware to the latest 16.6.X.

[carsbe1]

Updated firmware to 16.12.7

SBSG-3850-24-DISP#show ver
Cisco IOS XE Software, Version 16.12.07
Cisco IOS Software [Gibraltar], Catalyst L3 Switch Software (CAT3K_CAA-UNIVERSALK9-M), Version 16.12.7, RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2022 by Cisco Systems, Inc.
Compiled Wed 02-Feb-22 07:28 by mcpre

Cisco IOS-XE software, Copyright (c) 2005-2022 by cisco Systems, Inc.
All rights reserved. Certain components of Cisco IOS-XE software are
licensed under the GNU General Public License ("GPL") Version 2.0. The
software code licensed under GPL Version 2.0 is free software that comes
with ABSOLUTELY NO WARRANTY. You can redistribute and/or modify such
GPL code under the terms of GPL Version 2.0. For more details, see the
documentation or "License Notice" file accompanying the IOS-XE software,
or the applicable URL provided on the flyer accompanying the IOS-XE
software.

ROM: IOS-XE ROMMON
BOOTLDR: CAT3K_CAA Boot Loader (CAT3K_CAA-HBOOT-M) Version 5.08, RELEASE SOFTWARE (P)

SBSG-3850-24-DISP uptime is 3 minutes
Uptime for this control processor is 5 minutes
System returned to ROM by Power Failure or Unknown at 07:52:14 PDT Fri Sep 30 2022
System restarted at 07:06:57 PDT Fri Oct 28 2022
System image file is "flash:packages.conf"
Last reload reason: Power Failure or Unknown

This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.

A summary of U.S. laws governing Cisco cryptographic products may be found at:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html

If you require further assistance please contact us by sending email to
export@cisco.com.

Technology Package License Information:

------------------------------------------------------------------------------
Technology-package Technology-package
Current Type Next reboot
------------------------------------------------------------------------------
lanbasek9 Smart License lanbasek9
None Subscription Smart License None

Smart Licensing Status: UNREGISTERED/EVAL MODE

cisco WS-C3850-24U (MIPS) processor (revision AB0) with 794816K/6147K bytes of memory.
Processor board ID FCW2131D1HD
5 Virtual Ethernet interfaces
28 Gigabit Ethernet interfaces
4 Ten Gigabit Ethernet interfaces
2048K bytes of non-volatile configuration memory.
4194304K bytes of physical memory.
252000K bytes of Crash Files at crashinfo:.
1611414K bytes of Flash at flash:.
0K bytes of WebUI ODM Files at webui:.

Base Ethernet MAC Address : 74:86:0b:1d:ca:80
Motherboard Assembly Number : 73-15804-05
Motherboard Serial Number : FOC21310SR2
Model Revision Number : AB0
Motherboard Revision Number : A0
Model Number : WS-C3850-24U
System Serial Number : FCW2131D1HD

Switch Ports Model SW Version SW Image Mode
------ ----- ----- ---------- ---------- ----
* 1 32 WS-C3850-24U 16.12.07 CAT3K_CAA-UNIVERSALK9 INSTALL

Configuration register is 0x102

SBSG-3850-24-DISP#show inventory
NAME: "c38xx Stack", DESCR: "c38xx Stack"
PID: WS-C3850-24U-L , VID: V06 , SN: FCW2131D1HD

NAME: "Switch 1", DESCR: "WS-C3850-24U-L"
PID: WS-C3850-24U-L , VID: V06 , SN: FCW2131D1HD

NAME: "Switch 1 - Power Supply A", DESCR: "Switch 1 - Power Supply A"
PID: PWR-C1-1100WAC , VID: V01 , SN: DTN1912V15X

[carsbe1]

Balagi.Bandi

There is only one device.

[carsbe1]

The other switch that I want to connect to is switch 1 of a 3 switch stack.

If I need to update it's firmware I will have to do it in a maintenance window (after hours).

[carsbe1]

SBSG-3850-24-DISP#show int ten
SBSG-3850-24-DISP#show int tenGigabitEthernet 1/1/1
TenGigabitEthernet1/1/1 is down, line protocol is down (notconnect)
Hardware is not present
Hardware is Ten Gigabit Ethernet, address is 7486.0b1d.ca9d (bia 7486.0b1d.ca9d)
Description: To SBSG-3850-24
MTU 1500 bytes, BW 10000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive not set
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output never, output hang never
Last clearing of "show interface" counters never
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts (0 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
0 input packets with dribble condition detected
0 packets output, 0 bytes, 0 underruns
Output 0 broadcasts (0 multicasts)
0 output errors, 0 collisions, 0 interface resets
0 unknown protocol drops
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 pause output
0 output buffer failures, 0 output buffers swapped out
SBSG-3850-24-DISP#show run int ten
SBSG-3850-24-DISP#show run int tenGigabitEthernet 1/1/1
Building configuration...

Current configuration : 70 bytes
!
interface TenGigabitEthernet1/1/1
description To SBSG-3850-24
end

[carsbe1]

I noticed this is now reported by show version:

lanbasek9 Smart License lanbasek9
None Subscription Smart License None

Smart Licensing Status: UNREGISTERED/EVAL MODE

[Bryson F]

For clarification you are trying to connect the "SBSG-3850-24" (not a member of a switch stack) to a switch stack via sfp. Are you using Fiber sfps? what kind of switch makes up the three switch stack? are all 4 switches the same model? if yes i would recommend trying to have them on the same Version. also with the show interface status command does the interface not update with an sfp base module in the last column? 

[carsbe1]

Connecting a WS-C3850-24U-L with a C3850-NM-4-10G module installed and a SFP-10G-LR-X transceiver installed to a WS-C3850-24T-E with a C3850-NM-4-10G module and a SFP-10G-LR-X transceiver installed. The later switch switch is 1 of a 3 switch stack that includes 2 WS-C3850-48P switches. All three switches in the stack are running software version 16.3.6. The WS0C3850-24T-E switch is exhibiting the same problems with it's transceiver.