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ICX 7850 breakout port to 10G

ataylor

Hi,

I have configured an interface on a ICX 7850 as a breakout port. However, when I attempt to statically set the subports speeds, I receive an error message that there is an optics/speed mismatch and that a 4x10 QFSP transceiver needs to be inserted.

I read the list for supported transceivers and cables and had my management purchase a transceiver listed. I have provided the output of the show media validation command as well as the error message. According to all the CommScope and Ruckus documentation, I should not have an issue changing the port speed.

SSH@ICX7850-32Q-ASLAN-DISTRO-1#show media valid

Port Supported Vendor Type
----------------------------------------------------------------------
1/1/8:1 Yes OTHERS Type : 40GE-SR4 150m (QSFP+)
1/1/8:2 Yes OTHERS Type : 40GE-SR4 150m (QSFP+)
1/1/8:3 Yes OTHERS Type : 40GE-SR4 150m (QSFP+)
1/1/8:4 Yes OTHERS Type : 40GE-SR4 150m (QSFP+)
1/2/1 Yes RUCKUS Type : 100GBASE-Passive 1m (QSFP28)
1/2/2 Yes RUCKUS Type : 100GBASE-Passive 1m (QSFP28)
1/2/3 Yes RUCKUS Type : 100GBASE-SR4 100m (QSFP28)
1/2/4 Yes RUCKUS Type : 100GBASE-SR4 100m (QSFP28)
1/2/5 Yes RUCKUS Type : 100GBASE-Passive 1m (QSFP28)
1/2/6 Yes RUCKUS Type : 100GBASE-Passive 1m (QSFP28)
1/2/8 Yes OTHERSox Type : 100GBASE-LR4 10km (QSFP28)

SSH@ICX7850-32Q-ASLAN-DISTRO-1(config)#int ethe 1/1/8:1 to 1/1/8:4
SSH@ICX7850-32Q-ASLAN-DISTRO-1(config-mif-1/1/8:1-1/1/8:4)#speed-duplex 10g-full
INFO: 1/1/8:1: Optics <-> Speed mismatch, insert 4x10 QSFP
INFO: 1/1/8:2: Optics <-> Speed mismatch, insert 4x10 QSFP
INFO: 1/1/8:3: Optics <-> Speed mismatch, insert 4x10 QSFP
INFO: 1/1/8:4: Optics <-> Speed mismatch, insert 4x10 QSFP

Port 1/1/1: Type : EMPTY
Port 1/1/2: Type : EMPTY
Port 1/1/3: Type : EMPTY
Port 1/1/4: Type : EMPTY
Port 1/1/5: Type : EMPTY
Port 1/1/6: Type : EMPTY
Port 1/1/7:1: Type : EMPTY
Port 1/1/7:2: Type : EMPTY
Port 1/1/7:3: Type : EMPTY
Port 1/1/7:4: Type : EMPTY
Port 1/1/8:1: Type : 40GE-SR4 150m (QSFP+)
Port 1/1/8:2: Type : 40GE-SR4 150m (QSFP+)
Port 1/1/8:3: Type : 40GE-SR4 150m (QSFP+)
Port 1/1/8:4: Type : 40GE-SR4 150m (QSFP+)
Port 1/1/9: Type : EMPTY
Port 1/1/10: Type : EMPTY
Port 1/1/11: Type : EMPTY
Port 1/1/12: Type : EMPTY
Port 1/2/1: Type : 100GBASE-Passive 1m (QSFP28)
Port 1/2/2: Type : 100GBASE-Passive 1m (QSFP28)

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Deepu

From the Ruckus Optic Guide i found the cables available for breakout under 40G. One is for 1m, 3m, and 5m (E40G-QSFP-4SFP-CXXXX). And the other one is for 10m (E40G-QSFP-4SFP-AOCXXXX).

There are other breakout cable options that could work such as the following:

- E40G-QSFP-4SFP-AOC-1001

- E40G-QSFP-4SFP-C-0101

- E40G-QSFP-4SFP-C-0301

- E40G-QSFP-4SFP-C-0501

The difference between the above cables are the distance (10m, 1m, 3m, and 5m respectively).

Note: Please feel free to mark the post as ACCEPTED SOLUTIONS if its addressed your query.

Chandini

Adding to the post. Please feel free to download the below guide and refer Pg 7 and 8 for details with respect to Breakout Cables.

https://support.ruckuswireless.com/documents/2678-ruckus-icx-7850-switch-hardware-installation-guide

For more details you can refer Ruckus optics guide link :

https://support.ruckuswireless.com/documents/2656-ruckus-ethernet-optics-data-sheet

If you still have more concerns . Please feel free to log a case with us using the below link.

https://support.ruckuswireless.com/contact-us

Thanks

ataylor

Hi Deepu,

The breakout cable provided to me by my organization is the following: 3-meter (10-foot) MTP Female to 4 LC UPC Duplex 8 Fibers Type B Plenum (OFNP) OM4 50/125 Multimode Elite Breakout Cable. I am not sure if hyperlinks are allowed but the vendor and the part number are below.

Vendor: FS

Part Number: 8FMTPLCOM4

Is this cable type not compatible?

ataylor

Hello Chandini,

As I mentioned in my reply to Deepu we have breakout cables. The specific type is: 3-meter (10-foot) MTP Female to 4 LC UPC Duplex 8 Fibers Type B Plenum (OFNP) OM4 50/125 Multimode Elite Breakout Cable and the vendor and the part number are below.

Vendor: FS

Part Number: 8FMTPLCOM4

I also found the guide provided and requested transceivers from that list. However, I was provided these Brocade 40G-QSFP-SR4-INT Compatible 40GBASE-SR4 QSFP+. The specifications for the transceiver and cable are listed below.

Specifications Brocade Compatible 40G-QSFP-SR4-INT
Vendor Name FS
Form Factor QSFP+
Max Data Rate 42Gbps (4x 10.5Gbps)
Wavelength 850nm
Max Cable Distance 150m@OM4/100m@OM3
Connector MTP/MPO-12 Male
Media MMF
Transmitter Type VCSEL
Receiver Type PIN
TX Power -7.6~1dBm
Receiver Sensitivity <-11.1dBm
Powerbudget 3.5dB
Receiver Overload 2.4dBm
Power Consumption <1.5W
Extinction Ratio >3dB
Host FEC Supported
Bit Error Ratio (BER) 1E-12
Commercial Temperature Range 0 to 70°C (32 to 158°F)
Protocols IEEE 802.3ba, QSFP+ MSA, SFF-8436, SFF-8636

Specifications
Connector A US Conec MTP® Female (Pinless)
Fiber Mode OM4 50/125μm
40/100G Ethernet Distance 150m at 850nm
Glass Fiber Corning ClearCurve®
MTP Connector IL 0.35dB Max (0.15dB Typ.)
MTP Connector RL ≥20dB
Attenuation at 850nm ≤2.3dB/km
Cable Jacket Plenum (OFNP)
Jacket OD 3.0mm
Fan-Out Diameter 2.0mm
Installation Tensile Load 66N
Storage Temperature -40 to +85°C (-40 to 185℉)

Connector B LC UPC Duplex
Wavelength 850/1300nm
10G Ethernet Distance 400m at 850nm
RoHS Compliancy Status Compliant
LC Connector IL ≤0.2dB
LC Connector RL ≥30dB
Attenuation at 1300nm ≤0.6dB/km
Fiber Count 8 Fibers
Tensile Strength (Long/Short Term) 80/240N
Operating Temperature -10 to +70°C (14 to 158℉)

Chandini

Hi Ataylor

Ack and Noted. Thanks for reverting back to us.

From the details you posted below

1/1/8:1 Yes OTHERS Type : 40GE-SR4 150m (QSFP+)
1/1/8:2 Yes OTHERS Type : 40GE-SR4 150m (QSFP+)
1/1/8:3 Yes OTHERS Type : 40GE-SR4 150m (QSFP+)
1/1/8:4 Yes OTHERS Type : 40GE-SR4 150m (QSFP+)

In supported column it says " Yes " but in vendor details it says "Others" . I suppose this could be as you are using 3rd party Breakout cable.

It is recommended to use Ruckus Breakout cables with the devices as other vendor products we would not be sure on the working side.

If you still have more concerns with regard to the breakout cable you are using with the ICX device please feel free to log a case with us using the below link so that we can help you out.

https://support.ruckuswireless.com/contact-us

Thanks

ataylor

I am going to have to close this thread. We had a Ruckus rep conduct a site visit and he was unable to get the ports to successfully operate in breakout mode either. The Ruckus rep used Ruckus transceivers and breakout cables and is escalating the issue to production.

I am unsure of who to contact to close this thread as unsolved but it will be a while until a solution is found. Thank you all for your input.

Andre

Chandini

Hi Ataylor

Ack and Noted. Thanks for leaving us a message. Please feel free to log a case with us using below link if you have any concerns or you have any queries. Thanks again.

https://support.ruckuswireless.com/contact-us