topic Re: Faulty SFP ports? in ICX Switches

Faulty SFP ports?

agregori — Mon, 02 Mar 2026 16:36:29 GMT

Hi,

we have an issue with 1/3/2 and 1/3/4 SFP ports of the a Ruckus ICX 7150 switch. These SFP ports are used with 3x SFP adapters for fiber cables. According to our tests (we tried to replace and swap SFP adapters, fibers and the switch at the other end) the issue is related to these two specific ports. If we move the SFP adapters and fibers from 1/3/1 and 1/3/3 ports into 1/3/2 and 1/3/4 ports they stop to work and vice versa. The fault seems to be related to those specific ports. We also tried to connect only one SFP adapter to 1/3/2 (in case it is an issue related to the licenses) but nothing. We tried to disable and re-enable these two ports, reboot the switch and other troubleshoot operation but with no success. The switch worked properly since its installation almost 2 years ago. This is the "show version" output of this switch:

SSH@MD Switch 1>show vers
version System status
SSH@MD Switch 1>show version
Copyright (c) Ruckus Networks, Inc. All rights reserved.
UNIT 1: compiled on Jan 31 2023 at 21:50:36 labeled as SPS09010e
(29360128 bytes) from Primary SPS09010e.bin (UFI)
SW: Version 09.0.10eT211
Compressed Primary Boot Code size = 786944, Version:10.1.25T225 (mnz10125)
Compiled on Mon Aug 8 11:58:28 2022

HW: Stackable ICX7150-48-POEF
==========================================================================
UNIT 1: SL 1: ICX7150-48PF-2X10G_2X1G POE 48-port Management Module
Serial #:FEE3251S03D
Software Package: BASE_SOFT_PACKAGE
Current License: 2X10G
P-ASIC 0: type B160, rev 11 Chip BCM56160_B0
==========================================================================
UNIT 1: SL 2: ICX7150-2X1GC 2-port 2G Module
==========================================================================
UNIT 1: SL 3: ICX7150-4X10GF 4-port 40G Module
==========================================================================
1000 MHz ARM processor ARMv7 88 MHz bus
8 MB boot flash memory
2 GB code flash memory
1 GB DRAM
STACKID 1 system uptime is 3 day(s) 51 minute(s) 42 second(s)
The system started at 03:04:24 GMT+00 Fri Feb 17 2023

Please let us know if it is a hardware fault or something different. This would be the third Ruckus switch with hardware faults on this installation... This switch is still installed by our customer.

Thanks.

Re: Faulty SFP ports?

Mayank — Wed, 04 Mar 2026 07:42:17 GMT

Hi Agregori,

Thank you for posting your query.

Can you share the following output commands to verify the issue:

Note: Please form the connections with the affected ports and then collect the logs below.

show module
show flash
show media validation <affected port>
show int eth <affected port>
show media eth <affected port>
show run int eth <affected port>
show log | include <affected port>
dm statistics
show statistics ethernet <affected port>
show optic ethernet <affected port>
show optic thresholds ethernet <affected port>
dm optic <affected port> eeprom
dm statistics | include <affected port>

Follow the steps below to enable the optical monitor on both sides

device(config)# interface ethernet x/x/x (ports having issue)
device(config-mif-x/x/x)# optical-monitor
After enabling optical monitor
Run " device(config)# show optic x/x/x (ports having issue)
Run " device(config)# show optic x/x/x (ports having issue)

Thanks
Mayank Meena
Sr Tech Support Engineer - EMEA
Ruckus Networks

Re: Faulty SFP ports?

agregori — Wed, 04 Mar 2026 10:04:52 GMT

Hi,

here you can find the results:

SSH@MD Switch 1#show module

Module Status Ports Starting MAC

U1:M1 ICX7150-48PF POE 48-port Management Module OK 48 fc5c.452c.bb38

U1:M2 ICX7150-2X1GC 2-port 2G Module OK 2 fc5c.452c.bb69

U1:M3 ICX7150-4X10GF 4-port 40G Module OK 4 fc5c.452c.bb6b

-----------------------

SSH@MD Switch 1#show flash

Stack unit 1:

NAND Type: Micron NAND 2GiB (x 1)

Compressed Pri Code size = 29360128, Version:09.0.10eT211 (SPS09010e.bin)

Compressed Sec Code size = 29360128, Version:09.0.10eT211 (SPS09010e.bin)

Compressed Pri Boot Code size = 786944, Version:10.1.25T225 (mnz10125)

Compressed Sec Boot Code size = 786944, Version:10.1.25T225 (mnz10125)

-----------------------

SSH@MD Switch 1#show media validation ethernet 1/3/4

Port Supported Vendor Type

----------------------------------------------------------------------

1/3/4 Yes OTHERS Type : 10GE SR 300m (SFP+)

-----------------------

SSH@MD Switch 1#show int eth 1/3/4

10GigabitEthernet1/3/4 is down, line protocol is down

Port down for 4 day(s) 18 hour(s) 51 second(s)

Hardware is 10GigabitEthernet, address is fc5c.452c.bb6e (bia fc5c.452c.bb6e)

Configured speed optic-based, actual unknown, configured duplex fdx, actual unknown

Configured mdi mode AUTO, actual unknown

Tagged member of 7 L2 VLANs, untagged in VLAN 1, port state is BLOCKING

BPDU guard is Disabled, ROOT protect is Disabled, Designated protect is Disabled

Link Error Dampening is Disabled

STP configured to ON, priority is level0, mac-learning is enabled

MACsec is Disabled

Flow Control is config enabled, oper enabled, negotiation disabled

Mirror disabled, Monitor disabled

Mac-notification is disabled

VLAN-Mapping is disabled

Not member of any active trunks

Not member of any configured trunks

No port name

IPG XGMII 96 bits-time

MTU 1500 bytes

MMU Mode is Store-and-forward

300 second input rate: 0 bits/sec, 0 packets/sec, 0.00% utilization

300 second output rate: 0 bits/sec, 0 packets/sec, 0.00% utilization

0 packets input, 0 bytes, 0 no buffer

Received 0 broadcasts, 0 multicasts, 0 unicasts

0 input errors, 0 CRC, 0 frame, 0 ignored

0 runts, 0 giants

0 packets output, 0 bytes, 0 underruns

Transmitted 0 broadcasts, 0 multicasts, 0 unicasts

0 output errors, 0 collisions

Relay Agent Information option: Disabled

Protected: No

MAC Port Security: Disabled

Flexlink: Disabled

This port is not being monitored for queue drops

Egress queues:

Queue counters Queued packets Dropped Packets

0 0 0

1 0 0

2 0 0

3 0 0

4 0 0

5 0 0

6 0 0

7 0 0

-----------------------

SSH@MD Switch 1#show media eth 1/3/4

Port 1/3/4: Type : 10GE SR 300m (SFP+)

Vendor: OTHERS Version:

Part# : 10G-SFP-300-RK Serial#: EO12112190286

-----------------------

SSH@MD Switch 1#show run int eth 1/3/4

SSH@MD Switch 1#

-----------------------

SSH@MD Switch 1#show log | include 1/3/4

SSH@MD Switch 1#

-----------------------

SSH@MD Switch 1#show statistics ethernet 1/3/4

Port Link State Dupl Speed Trunk Tag Pvid Pri MAC Name

1/3/4 Down None None None None Yes 1 0 fc5c.452c.bb6e

Port 1/3/4 Counters:

InOctets 0 OutOctets 0

InPkts 0 OutPkts 0

InBroadcastPkts 0 OutBroadcastPkts 0

InMulticastPkts 0 OutMulticastPkts 0

InUnicastPkts 0 OutUnicastPkts 0

InBadPkts 0

InFragments 0

InDiscards 0 OutErrors 0

CRC 0 Collisions 0

InErrors 0 LateCollisions 0

InGiantPkts 0

InShortPkts 0

InJabber 0 OutDiscards 0

InFlowCtrlPkts 0 OutFlowCtrlPkts 0

InBitsPerSec 0 OutBitsPerSec 0

InPktsPerSec 0 OutPktsPerSec 0

InUtilization 0.00% OutUtilization 0.00%

-----------------------

SSH@MD Switch 1#dm optic 1/3/4 eeprom

0000 03 04 07 10 00 00 00 40 40 0c 55 06 67 00 00 00 .......@@.U.g...

0010 1e 1e 00 1e 45 44 47 45 20 20 20 20 20 20 20 20 ....EDGE

0020 20 20 20 20 00 00 00 00 31 30 47 2d 53 46 50 2d ....10G-SFP-

0030 33 30 30 2d 52 4b 20 20 20 20 20 20 03 52 00 b8 300-RK .R..

0040 00 1a 00 00 45 4f 31 32 31 31 32 31 39 30 32 38 ....EO1211219028

0050 36 20 20 20 32 32 30 33 32 31 20 20 68 90 01 a2 6 220321 h...

0060 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20

0070 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20

0080 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................

0090 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................

00a0 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................

00b0 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................

00c0 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................

00d0 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................

00e0 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................

00f0 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................

0100 5a 00 f6 00 55 00 fb 00 8c a0 71 48 88 b8 75 30 Z...U.....qH..u0

0110 1d 4c 01 f4 19 64 03 e8 62 1e 04 ea 4d f0 06 30 .L...d..b...M..0

0120 7b 86 00 c7 4d f0 01 3c 00 00 00 00 00 00 00 00 {...M..<........

0130 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................

0140 00 00 00 00 3f 80 00 00 00 00 00 00 01 00 00 00 ....?...........

0150 01 00 00 00 01 00 00 00 01 00 00 00 00 00 00 16 ................

0160 24 e8 81 70 0d 89 18 a8 0b 0b ff ff ff ff 08 ff $..p............

0170 00 00 70 20 00 00 ff ff ff ff ff 00 00 00 00 00 ..p ............

0180 43 4f 55 49 41 38 4e 43 41 41 31 30 2d 32 34 31 COUIA8NCAA10-241

0190 35 2d 30 33 56 30 33 20 01 00 46 00 00 00 00 c6 5-03V03 ..F.....

01a0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................

01b0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 aa aa ................

I tried to enable the optical monitoring on both ends but the commands show optic 1/3/4 or show optic thresholds 1/3/4 report nothing or Port 1/3/4 optical monitoring is not enabled.

Looking forward to your kind reply.

Thank you in advance.

Andrea

Re: Faulty SFP ports?

Mayank — Wed, 04 Mar 2026 14:01:49 GMT

Hi Andrea,

Thank you for sharing the logs with us.

Based on the information provided, I can confirm that the SFP module currently in use is a third‑party optic and not a Ruckus‑certified module. In such cases, we kindly recommend testing with a Ruckus‑approved SFP for accurate validation.

To clarify, Ruckus thoroughly tests and certifies the performance and compatibility of all Ruckus-branded optics with our switching platforms. Any interoperability issues identified during testing are addressed internally to ensure stable operation. However, we are unable to guarantee performance, compatibility, or behavior when third‑party or OEM optics are used, as they may not fully meet the required specifications.

Could you please test once using a Ruckus SFP module and let us know the result?

Mayank Meena
Sr Tech Support Engineer - EMEA
Ruckus Networks

Re: Faulty SFP ports?

agregori — Wed, 04 Mar 2026 14:05:20 GMT

Hi,

I confirm that we used a third party SFP adapter. However, the same exact switch (and others of the same installation) has the same model of SFP adapters in ports 1/3/1 and 1/3/3 and they work fine. Moving them to port 1/3/4, the port remains off. Returning to the original one, it return to work.

According to tests performed the issue seems related to the port, not the SFP adapter.

Please advice.

Re: Faulty SFP ports?

agregori — Fri, 13 Mar 2026 10:46:55 GMT

Hi,

any news for this issue?

This is an update: we installed the new switch but we have still issues with the SFP ports but slightly different. Now ports that are not working are 1/3/1 and 1/3/3 (with the same exact fibers mapping!). With a fiber from anohter switch now the ports leds goes on and green (with the old switch they stay off) but no traffic or communication with the switch of the other end (no ping). The led on the other end switch goes orange with CRC and InErrors but if we move that fiber to another switch or to ports (1/3/2 or 1/3/4) of the same switch it works (so no faults with fibers or SFP adapters)! All the switches have the same firmware 09.0.10eT211. This is very annoying. All was working a few weeks ago. No configuration changes in the mean time. We restore the previous backups. Please help!