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9 votes
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Converter for RJ45 port to SFP+

The regular 'copper'/RJ-45 connector pin-outs cannot provide the power needed to drive the optics to allow you to do what you want to - you'll have to use a media converter or just swap out the NIC ...
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6 votes
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Compatibility of QSFP28 and SFP+ ports

QSFP and QSFP28 are the same physical form factor - the former supports 40G (or 4x10G) while the latter supports 100G (..or 4x25G / 2x50G). For the most part QSFP's will work in QSFP28 ports but the ...
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  • 8,083
6 votes
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Do 10GbE SFP transceivers need to match?

Simple answer: No. You don't need to match Brand or Model, 10GbE is usually not as picky as FC.
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  • 4,379
6 votes
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What type of Fiber-Connector is this?

Its not LC, that is much smaller. Looks like SC.
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  • 8,138
5 votes

HP ProCurve 5406zl does not accept direct attach cable with error "Not an HP Networking transceiver"

With DAC cables, I usually let the switch dictate compatibility. Go with what is known-good on the switch and work from there. The other part of this is your balking at prices. Part of working in ...
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  • 194k
5 votes

HP ProCurve 5406zl does not accept direct attach cable with error "Not an HP Networking transceiver"

No, there is no equivalent on Procurve gear. If you baulk at HP prices, your best option is probably to look for a third-party supplier that will sell compatible parts with the SFP+'s coded as HP.
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  • 1,206
5 votes

Do Netgear switches accept other brands of SFP+ modules and cables (e. g. Cisco)?

SFP and SFP+ are standardized and generally are interchangeable in most situations. If a device requires coded SFP modules such as Cisco then you need to use an OEM module, or disable coded SFP on ...
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  • 216
5 votes
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Some questions about SFP+ fiber networking in general

Do these NICs and Switches just have holes in them that I'm supposed to put transceivers in? Simply said: yes. Tranceivers go into their respective slots. I'm used to regular switches with regular ...
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4 votes
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100BASE-FX WDM vs 100BASE-BX vs 100BASE-BX10 - Are they all the same?

Further to my comment, I think you're right about them being overlapping terms - mis-used in various ways. You can download the actual IEEE 802.3-2012 standard here... it's interesting reading if you'...
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4 votes

vCenter moving VM from ISCSI target to different ISCSI target

If you clone a VM from one iSCSI Storage (Target) to another, then the ESXi Server reads the VM from the Source Lun and writes it to the Target Lun. The Storages don't communicate directly with each ...
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3 votes

CX4 Infiniband to SFP+ Converter

The CX4 ports are "Infiniband style" but still Ethernet (10GBASE-CX4). Media converters for CX4 to SFP+ are (were) available, but they're costly if you can still get them. Swapping the port ...
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  • 8,239
3 votes
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SFP+ Cable From Uplink Port to SFP+ 10Gb NIC

Yes, you can do this in theory. Keep your receipts because not all DAC cables work with every NIC/switch combination. It's best to use the cables that are known-good according to the switch ...
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3 votes
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CISCO WS-C4948-10GE SFP+?

You're asking about X2 Optics, which is what the c4948-10GE uses; so the ebay picture you listed is definitely one possible option for the 4948's optics. Whenever you build optical solutions, ...
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3 votes
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Is it possible to have a link between a 10GbE NIC and 1GbE Switch with a SFP+ DAC?

I'd suggest a pair of Copper SFP adapters to connect things temporarily. The cable you have likely isn't compatible. The PowerConnect 2824 doesn't have SFP+ ports (only SFP).
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  • 194k
3 votes

How to replace an SC-Duplex-switch with an SFP switch?

Seems like the most simple solution would be to purchase SC-to-LC patch cables.
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  • 108k
3 votes

Mikrotik HPE SFP interconnect

You are recommended to buy Mikrotik's module to install into Mikrotik, and HPE's module to install into HPE. Mikrotik is usually able to use any modules, but it is not guaranteed; HPE in general would ...
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3 votes

Some questions about SFP+ fiber networking in general

High-spec network switches may offer two types of physical interface connectors. The first one is the standard RJ45 that we also refer to as "copper" and just recently got upgraded to ...
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  • 46
2 votes
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Do HP switches lock their SFP Ports?

I was pulled back to this today, and now know the correct answer is, "Sort of". Some HP switches (including my model from the question) do have protections on the ports. However, they do not fully ...
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  • 12.9k
2 votes

SFP+ twinax cable compatibility

Actually there are serial ROMs in the cable ends that include a vendor ID. Some vendors check the ID and disable the ports if you use a cable from a vendor (read competitive source). All this so that ...
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2 votes

Why would I choose Copper over SFP+ for 10GbE?

Comparing SFP+ to 10GBASE-T. Pros of SFP+ Lower latency (though unless you are in HFT or similar it's likely negligable) Lower power consumption Cheaper NICs and switches More choice of connected ...
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  • 4,018
2 votes
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SFP+ to 10GbE RJ45

SFP+ is a slot designed primerally for fiber optic transciver modules. It is also possible to directly connect two SFP+ devices using a "SFP+ Direct attatch" cable. Unfortunately 10GBASE-T ...
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  • 4,018
2 votes

Mixing network fiber connectors

Yes but do ensure you're using the same fibre diameters for the full end-to-end run - i.e. if you're using 50/125u OM3/OM4 then use that throughout.
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  • 99.7k
2 votes
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How to connect MD3800i (iSCSI 10 GbE) to PowerConnect 8132F (SFP+ 10 GbE)

You are conflating two terms. You do not have an "iSCSI port", you have a 10GBASE-T port and an SFP+ port. You need to know how to connect those two things. iSCSI is the Layer 7 protocol. You're ...
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2 votes

Possible fake transceivers for X520-DA2, hindering performance?

If you are able to boot the X520 on an Ubuntu machine and have the SFP+ Transceiver modules plugged in you can run the following to print out the EEPROM values of the SFP+. ethtool --module-info ethX ...
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  • 21
2 votes

Do 10GbE SFP transceivers need to match?

Each device will need a transceiver that it's happy with, but they don't need to match at opposite ends of the link. (several manufacturers, and Cisco is one, read out the data in the module's EEPROM ...
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2 votes

About 4x10G SFP+ <--> QSFP breakout cable

Weirdly we've been dealing with these in the last few weeks, they can be tricky buggers. In particular we've been using them from C220 M5's into 5672UP's. Anyway theoretically you can connect 2, and ...
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  • 99.7k
2 votes

CX4 Infiniband to SFP+ Converter

There are two Dell part numbers for stacking modules (UY108, YY741) plus the CX4 module (GM765) but only the latter is supposed to work in Bay 2. The switch can configure any module as Ethernet or ...
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2 votes

Plug 10GbE appliance into the SFP+ port of a switch on a 1GbE network

The "uplink" ports on a Cisco 2960-X switch will work exactly like any other port (albeit with more speed options), and the behaviour will depend on the config applied to the port. If the link layer ...
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  • 637
2 votes
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Collecting SFP+ attributes in Linux

To collect info about plugged modules you can use ethtool --module-info <iface> command. This command doesn't require activation of interface. Start from this small script: #!/bin/sh for ...
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1 vote
Accepted

partly no connection over sfp+

I feel so stupid, of course I should have just checked the polarity of the cable (is it called polarity in english?) 2 Patch Cables --> not patched 3 Patch Cables --> patched again.
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