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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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Cisco SFP for single-strand single mode connection over 10km

Is it possible using only Cisco equipment to link two sites approximately 15km apart using only one single mode fiber strand.
Simon
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fiber networking: making sure I understand

Im costing out a network in a building that has multi-mode fiber already available. It's entirely unused and requires switching in multiple locations to make a working system. I want to make sure that I fully understand what's involved in hooking it…
ethrbunny
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Mixing and choosing CWDM and DWDM parts

I have been looking at the page "Cisco Enhanced Wavelength Division Multiplexing Product Line", on Cisco's web site. I would like to light up some dark fibre for at least 2x 10Gbps Ethernet links. Looking at that page, can I use the eDWM box…
jwbensley
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need more information on a "10 gb bidi"

We have a 10 gb fiber run between 2 buildings about a mile apart and will not be able to purchase any more fiber. I was told I could use four "10 gigabit bidi's" to allow 2 separate ethernet connections over the same pair of fiber. These…
jftuga
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2 x Netgear GS724T (Dual GBIC) trunking issue

I have the following: Netgear GS724T (Firmware Version V1.0.3_35, Protocol Version - 2.001.002) 4 x Indineon ISFP GBR/FC Settings STP Function - Enabled Fast Link - Enabled Trunking port 23,24, (21,22 - RJ45 cables, but not connected.) I have…
Arthor
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HP networking unstable over fiber connection

I have a 3com Baseline Switch 2928 that's connected over fiber to a 3com superstack 4500. The fiber is singlemode and has the suitable SFP modules on both switches. The switches (and connected devices) have working networking but it's very…
Michael Anckaert
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What SFPs can be used with Dell MD36x0f storage?

I've not found any information about used SFPs and supported cable length (which is what I actually want to know). Online configuration wizard does not allow to choose SFP type, only quantity. One presentation that I have states that maximum cable…
gelraen
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Netgear FVX538v2 slow whene connected to Canoga Perkins N525 ETSU

First of all thank you in advance for helping me. my issue is the old network admin found a problem whene he connected the firewall and the ETSU together the through put went down to less than 1 mega bit a second. his fix was to add a dlink router…
Doomloard
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D-Link DMC-1002 Management Module Password Reset

We just purchased a D-Link DMC-1000 media converter chassis with a DMC-1002 management module. Connected to the module through a COM port and PuTTy and changed the root password. Subsequent login attempts fail now and trying to reset the password…
chonty
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Will 1000BASE-LX autonegotiate to work with 100BASE-FX

We have existing equipment that uses 100BASE-FX (multi-mode fiber). Will it work with 1000BASE-LX (also multi-mode) through autonegotiation? Virtually everything I found on the web about autonegotiation was for copper interefaces. This question is…
Brian Carlton
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Do 3Com switches support generic SFPs?

I have a 4200 series switch with an empty sfp port, and existing unused fiber run (62.5nm multimode) to another building that I hope to bring up, with a 1000base-SX connection on the other end. Unfortunately I'm having trouble finding a 3Com…
Joel Coel
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infrastructure about mmof

I just want to know how much loss a multimode fiber can have before it does not transfer information or slow down the system? I have tested a 12 core mmof that is about 60m long and i am getting 4.5dB loss.
user57543
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fiber cable connectivity

For switch to server connectivity with fiber cable: TX end connected of server will be connected to the TX of the switch and vice versa. To validate the TX end, see through the cable. The one with light is TX end. Please confirm my…
user57218
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Send HD video over SONET

In an effort to test our new OC 192 network, we would like to find a way to stream HD video over it for a demonstration. We are looking for a device or combination of devices that connects to HDMI on one side and has a XFP client interface on the…
Fizzy
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Maximum speed of data transmission

All major data carriers these days use fiber optic links these days. And data transmission occurs at the speed of light, is that correct? If data transmission does indeed occur at the speed of light, is it also correct to assume that data…
JavaRocky
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