Questions tagged [transceiver]
Transceivers are transmitter/receiver pairs that are required for a physical network interface. Most often the term is used for modular transceivers (SFP, SFP+, QSFP, GBIC, XFC, ...).
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CWDM-like 10G transceivers at homelab - feasible?
I am happily running homelab on single mode fiber at 10G.
I was always curious to see CWDM working, and CWDM mux/demux modules are getting very affordable.
Is there some hobby-friendly way to get ...
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Support for 10GBase-T RJ45 SFP+ transceivers
Support for 10GBase-T RJ45 SFP+ transceivers in modern switches can be a hit and miss. What is the technical limitation as to why some switches don't support them? So far my understanding on the issue ...
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Must SFP28 controllers explicitly support different SFP28 transceiver features (i.e. SR vs eSR vs cSR)?
To solve a specific server clustering problem I am opting to split the patching of the servers to both "in the same room" and "in another room". We have multimode cabling between ...
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Max cable length when using 10GBASE-T SFP+ transceiver
I find it typically said that the maximum Cat6a cable distance is 100m for 10GBASE-T.
But often for a 10GBASE-T SFP+ transceiver, the product is said to support a maximum of 30m. For example: Cisco ...
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Is there a difference between BIDI LR and DFB BiD or are they compatible?
My ISP is offering 25GBit Fiber soon and I am looking into the required hardware. One of the devices I will need to purchase is a new transceiver that can handle the speeds.
The one my ISP recommends ...
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Cisco ASR 1001 transceivers not working
I've a Cisco ASR 1001 v03.
When it got to my hands it wouldn't save the config after reboots, after some research I found out the config-register had a wrong value and it was fixed by running ...
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100BaseTX Ethernet Idle code ("/I/") 4B/5B origin
While searching how the PHY LINK status is determined, I stumbled across this answer :
In 100BaseTX Ethernet, link pulses aren't used, but instead, link
status is detected and maintained via the ...
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LC dual pair converter to 10GBASE-T
If using dual pair LC fiber to run 10GbE over a long distance, what's the best way to connect it to a server on one end which has a 10GBASE-T port?
On the other end there's a switch with 10G SFP+ ...
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QSFP to 4 x SFP+ breakout not working in HP Procurve 3500yl J8693A
I have bought a Netronome Agilio CX smartNIC which has QSFP interface. My switch HP 3500yl J8593A has 4xSFP+ interfaces. I bought Amphenol QSFP to 4xSFP+ breakout DAC. But the switch complained about &...
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Why is XGMII little endian while the network is in big endian?
Why is XGMII little endian while the network byte order is big endian (RFC1700)?
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does fiber optic transmit data as fast as light?
I dont know where to ask this question. So i think its best suited for networking community.
As fiber optic transmit data using light. So we are getting/sending data at the speed of light ??
I did ...
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SFP to RJ45 for 10Gbit network
I am in the process of upgrading some of our network into 10Gb and grabbed the following:
A network switch by netgear, mode:GS110EMX
A bunch of assorted cat8 cables(for future proofing)
Two 10gtek ...
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Simultaneous transmission of a D2D user
Can a D2D user (a device) transmit simultaneous different signals to a cellular user and a D2D receiver. If we suppose that the D2D device is equipped with SDR technology and can change their ...
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How to use an optical tap? Which fiber should I use?
We have an optical tap (https://www.fs.com/products/73675.html) that provides an LC connector providing two TX instead of RX/TX.
As you can see, there is a conflict.
What I think I need:
A splitter ...
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How to use QSFP28 transceiver with 100G datacenter？
Do you have any experience With qsfp28 transceiver on 100g data center? have you ever make 100G QSFP28 to be Used for 40G?
100Gb/s QSFP28 IR4 PSM4 (Parallel Single Mode 4 lanes) Optical Transceiver, ...
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Non-HP transceiver and HP switch
Does a non-HP single-mode transceiver work in a HP switch, and does a non-HP single-mode transceiver communicate with a single-mode HP transceiver?
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SFP compatibility on QLogic FC HBA and Cisco FC SFPs
I do have a server featuring a dual port QLogic FC HBA supporting 2/4/8G interface speed. On the other end there is a Cisco Nexus 5020 with N5K-M1008 module supporting 1/2/4G interface speeds. This is ...
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Cisco/Meraki switch SFP compatibility and dual link
Our company wants to connect two different floors together about 150-200 feet apart. I was thinking fiber would be the best option for this but I don't have much experience so I would like to see if ...
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How to use" Multimode SFP GLC SX MMD" in Cisco Catalyst 2960 S connected LAN and single mode OFC network
We have single mode OFC network and CAT 6 CAT5 LAN with ethernet and gigabit Ethernet switches and ordered for "GE SFP, LC CONNECTOR LX/LH TRANSCEIVER FOR SINGLE MODE FIBER OF CISCO CATALYST 2960 S" ...
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How can 1000BaseT transmit on Rx & receive on Tx pins?
How can 1000-BaseT (Gigabit ethernet twisted copper pairs) technology transmit over the Rx pins & receive over the Tx pins?
It's baseband technology (hence the name), right? Discrete digital ...
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Network Packet that allows maximum throughput
I created a basic wireless system between two microcontrollers. Each uses the on-chip UART and an HM-TRP radio module to communicate with each other. Eventually I'll have a master-slave setup where ...
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Transceiver for MM links up to 2k
I have 2 links of 1.5 mm f.o mm c / u I want to know if a transceiver GLC-GE-100FX would work for me, why and what are its variations.
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AOC cables for Brocade Fiberchannel
I have a FC switch from brocade with 16Gb ports and I want to connect to an array enclosure from another vendor. For internal requirements, it should be connected through twinax AOC cables. My problem ...
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Is SFP Transceiver on a Cisco switch must be a Cisco?
I just bought a SFP Transceiver (on Amazon) to connect an optical fiber between 2 CISCO switches (2960x).
The SFP is detected as "Type : unknow". Do you know if I inevitably must buy a CISCO SFP ...
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HP Access Switch 1920-48G POE switch
I would like to know whether we can use an HP 1920-48G POE access switch with an HP 5406zl as Core switch. The access switch will be connected through 1 Gbps SFP to the core switch.
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sh int transceiver Explanations
When looking at the output of show interfaces transceiver on a Cat 4500X you notice that there is a Tx and a Rx power measurement. My questions about this output are:
Why is each transceiver ...
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How "show inventory" displays SX SFP?
I've a Cisco 3925 and it's not quite clear why an "1000BASE-SX SFP" entry is visible in the inventory. Is it only visible when the SX SFP is in use? (I've no chance to modify it.)
NAME: "CISCO3925-...
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Fiber Type and transceiver model required
We have an existing 10 G p2p link between our Datacenter ( DC) and Corporate Office ( HQ )with a service provider, Lets call A
When A did our install they have used a Cienna box on HQ side , I ...
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5GbE over fiber optic cable with SFP+ [closed]
I have to build a 5GbE link with a SFP+. Can i use the one that is rated for 8Gbps? And what kind of NIC should I use on host PC?
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Are all same type fiber optic transceiver compatible?
Can I order a 1000BASE-LX transceiver from any source and it will be compatible with all others 1000BASE-LX ?
Would a link with a Juniper 1000BASE-LX and a TrendNet 1000BASE-LX transceiver work?
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10GbE copper module for Cisco Nexus 3548 switch
I have a Cisco Nexus 3548 switch and a bunch of machine that I want to connect to it via 10GbE RJ45 connectivity.
I am a bit overwhelmed with all the acronyms and sheer volume of technical info on ...
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"Overclocking" a 10BASE-T ethernet controller
What will happen if I desolder the 25 MHz clock of an ethernet module (like this one; datasheet of the chip) and add a faster clock (say 100 MHz)?
The related product is a 10BASE-T ethernet module. ...
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Is it possible to permanently damage optical transceiver if Rx signal is too strong?
Data sheets of optical transceivers often specify the receiver maximum input power. In addition, non-volatile memory of transceivers often seem to hold this data:
root@MX240> show interfaces ...
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Can I use an OM3 fiber optics cable on 1gb transceiver J4858C?
I have this multimode transceiver product:
http://www8.hp.com/h20195/v2/gethtml.aspx?docname=c04168409&search=J4858C
I am going to use it on the following switch:
http://www8.hp.com/h20195/v2/...
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Single-mode cross-connect -- link light off
I recently had a single-mode fiber cross-connect setup between two cabinets on different floors. I have a Brocade FESX648-PREM on one end and a Brocade FESX448-PREM on the other end.
Both switches ...
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Cisco 2960-X Discover SFP Modules Without Rebooting
I have a pair of Cisco 2960-X's in a stack configuration using stack modules. This gives me a total of 4, 10 gbps SFP+ slots. I am using interfaces Te1/0/1 and Te2/0/1 as 10 gbps uplinks to the core ...
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Can 40GBASE-LR4 be used for 4x10G?
I have a 40GBASE-SR4 QSFP transceiver which can be used for 4x10G SFP+ communications using a 40G QSFP+ to 4x10G SFP+ multi-mode optical spliter. I am looking for an LR (single-mode) equivalent of ...
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Is SFP+ backwards compatible with SFP?
Can I stick an SFP transceiver module in a SFP+ port in a Cisco Nexus 5K for example if I need to connect a fast ethernet switch with a 1 Gbps SFP uplink port? I saw this Nexus's ports are 1/10 Gbps.
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Importance of encoding data to signal
We all know that there are various encoding schemes to encode data like Manchester Encoding, before sending it. But why is there a need to encode the data to a signal? Why can't we just transmit the ...
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10GigE fiber over a distance of 120km?
If we purchase a single strand of dark fiber which spans 120km, is it possible to light it at 10Gig?
We will be using a 6509 switch at one end and a 4948-10GigE at the other end.
We have not ...
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