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)

[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.

[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? 

[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]

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℉)