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Questions tagged [fiber]

Fiber (Fibre) generally refers to optical fiber, a very thin, flexible glass strand which is used for the transmission of optical signals in high performance networks.

An optical fiber is a very thin, flexible glass strand that transmits light along its axis, by the process of total internal reflection.
There are two main classes of optical fibre used in telecommunications applications, Single-mode Fiber (SMF) and Multi-mode fiber (MMF)

Multi-mode Fiber is mostly used for communication over short distances, such as within a building or on a campus. Typical multimode links have data rates of 10 Mbit/s to 10 Gbit/s over link lengths of up to 600 meters.

Single mode fiber is used for communication over very long distances. It is not so common in the datacenter environment.

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Bonding 4 Gigabit ethernet and 2 Fiber SFP+

We received a DL380 with 4 Gigabit Ethernet (normal CAT6), and 2 Fiber SFP+ (HPE 10Gb SR SPF+). I've successfully managed to bond the 4 Gigabit Ethernet together, and put in place some LACP on our Cisco equipment. I can succefully bond the 4 Gigabit…
Tolsadus
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split lc connection to fit two SMF transcievers?

I got a cross connect in a data center patched into my patch panel, I'm using SC to LC cable (SC from patch panel to LC into transceiver) to connect it to my switch (Arista 7150s). I just bought another switch mostly for backup purposes in case of…
Y.S
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1000BASE-LX vs 10GBASE-LR vs 10GBASE-LRM over multimode fiber, what are the differences?

We know that 1000BASE-LX transceivers can be used over multimode fiber, and should be able to reach distances of 550 m in addition to the usual 10 km over single mode fiber. 10GBASE-LR transceivers have the same 10 km rated distance over single…
ilkkachu
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Unstable ethernet/fiber pc to pc connection Windows

We have two Windows 7 PCs (64 bit) connected to each other directly, i.e. without a router in between, using a fiber connection with two ethernet-to-fiber converters. PC1 uses a Realtek PCIe GBE Family Controller, PC2 uses an Intel Gigabit CT…
user2323470
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Internet routing through linux speeds down

I'm having the most odd problem: I'm providing internet routing for a network of pcs through a server based on linux. I used a broadband modem and everything worked fine. Now, to the question, I got an optic fiber modem (PON Huawei Echolife HG8240)…
Switch
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Windows Server 2012 R2 Hyper-V - High Availability (Clustering): Connect servers to storage using FC: switch or direct attach?

My scenario: I have a DS3400 DISK SYSTEM DUAL CONTROLLER FIBRE CHANNEL storage equipped with two controllers each equipped with two 4-GBPS FC ports, for a total of four FC ports. Then I have four servers each equipped with one IBM 4-GBPS FC…
icarrara
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Are there any WAPs out there that support fiber optic daisy chaining?

This may not even be possible, but it seems like it would be the best way to do this, so I'll ask. Basically I'm wanting to string together wireless access points with fiber. I'm already having a hard enough time finding a fiber based WAP, but I'm…
Max Schmeling
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Avaya 4850 GTS & VSP 7000 - setting up a fibre trunk, no MLT

I'm a junior network/sys admin, and I'm stuck (and my seniors aren't sure what to do). I have a VSP 7000 switch which is a core switch. And a 4850 GTS switch which is like access switch. The switches are in different rooms. We believe we have the…
2legit2quit
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How to connect 2 parts of a facility using fiber optic cable?

Here's a quick rundown: We currently occupy half of a large facility which is 100k square feet. In our current space (which is 50k square feet obviously) we have about 50 work stations and 40 IP phones. Everything terminates to our closet, which has…
redhat
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IBM Fiber Storage

I am asking this question on behalf of the company i work for, What the problem is that we have just setup a fiber storage system with an IBM Server and IBM Fiber Storage system, we brought the both systems second hand and the server works great but…
ThePartners
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Interconnecting a fiber optic switch with a copper switch

What would be the best way to connect from a "fiber optic only" switch to a regular copper rj45 switch? Which of the configurations shown in the attached diagram would work properly? Should I go for a "regular" switch that has a dedicated sfp[+]…
pming
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What will happen if the fiber optic power budget exceed?

I know that before you use the fiber optic cable you should calculate the power budget and make sure that the total power should be below the Transceiver power budget margin to be sure that the system will work as it designed. If I'm using a 1G, it…
Q8Y
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Fiberchannel disk Centos6.5

I got some fiberchannel disk shelves including several 300Gb SCSI drives and a HP c7000 blade system with multiple blades in it. As there is no storage controller (filer) available i have to do it without. The Idea is to use a blade that has access…
Jeffrey
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Ethernet to Fiber Converters, reliable? or maybe better solutions

Not sure if this is relevant to ask here ... but I cannot find any information on the net about it. But here goes: Today I have a fiber that comes into building B from A(I have no control here. Lets just say it's our ISP). This goes to a switch…
Syska
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Optical modules, fiber and cables for 10 GbE short range connectivity (brands, latency)

I'm looking to run 10 GbE over lengths of 5-25m for a research lab and have been shopping for the appropriate optics. I'm guessing a mix of copper direct-attach cables and OM3, OM4, LC/LC multimode fiber will suffice. But two questions cropped up…
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