How to build a redundant fiber optic ring

Hello everyone. I would like to connect 10 buildings with a redundant fiber optic ring and have a control room connect to te closet building in the ring to  receive data from our process control systems which are in the buildings in the ring. They are DCS systems that feed information to the bacbone over FTE. Can someone point me to a document that shows what I need to do and a sample architecture. Can I use Catalyst 2960S switches or do I need 3750s in all my buildings. Thanks in advance for any help.            

You will need some form of separation from your process control domain from the business network. If you have enough fibre pairs, then VRFs can be used to bind to the interfaces, or you can bind to the Vlans to the appropriate VRF. The important part is to ensure that the process control network is not routable from the business network.
With the FTE, check with the vendor that if it's handled within the DCS system and you only need to provide separate Vlans for L2 communication. You will also need to consider some form of authenticated gateway to handle third party external access to support your process control network.
Don
Sent from Cisco Technical Support iPad App

Similar Messages

  • Does anyone know how to access the sound software on a Mid 2010 Mac Pro? I have a Logitech Z906 5.1 surround system with fiber optic in and out, I only seem to be able to get stereo and simulated 5.1 sound .

    A mid 2010 Mac Pro, trying to get 5.1 surround out of the onboard sound software using fiber optic out connected to a Logitech Z906 5.1 speaker sys. with fiber optic in and out, all I get is stereo and simulated 5.1 sound out of the speakers. In utilities, Audio Midi Setup I can't get the Mac to see the Logitech speakers for 5.1 speaker configuration. Without being made to feel like a dummy, does anyone have a solution? Thanks, Carl

    Hello John, I figured it was a signal issue. All the speakers fire and the sound is great. I was running the speakers thru a Dell PC with a Creative X-Fi Elite Pro, THX Certified, 7.1 soundcard using a fiber optic from the Mac Pro to the Z906's, it worked great until the Dell died!!! When I bought the soundcard from Creative I also bought the GigaWorks S750, THX Certified, 700 watt, 7.1 speaker system, used the speakers for 11 years and then the woofer/amp said "I QUIT" Creative quit making the speaker system and the sound card. The satellite speakers from the Creative GigaWorks speaker system still sound great (rated at 78 watt each) and are a little better speaker than the one's that came with the Z906 and the wattage from the 906 is sufficient to drive the satellites without any distortion. Thank you for addressing my issue, you confirmed what I suspected all along, just needed to hear it from someone with the same setup.
    One last question, I purchased a Diamond Multimedia USB Soundcard, can't use the fiber optic(not supported by Mac) but the green, tan and black RCA's plug in and produces adequetly. When you plug your 906's into the Mac Pro using the fiber optic how do you set your speaker configuration? When I plug into the mac pro with fiber optic the 'Audio Midi Setup' does not seem to see the 5.1 configuration. Any thoughts there?
    Carl

  • How difficult/costly is it to install fiber optic cables?

    I live in an area that has no underground cables, or fiber optic cables and I've lived with this 1.5 MB DSL connection for about 4 years now.  Yeah, it sucks.  I was curious as to what is the biggest factor when it comes to installing fiber optic cables in an area and how a company determines as to where they are going to be located.  Thanks in advance.

    Installing fiber optic cables is not just a "how hard is it?" question.    yes, the business considerations do take into consideration the physical issues (how hard it may be [above ground and below ground]), but there is more:   Can the company get City\county\state PERMITS to do so?  What engineering problems are there? (mountains, existing drainage or other water culverts, etc.?)  and then there is also the business consideration of 'how much uptake will be realized if we install the fiber cable?' (how many users in the neighborhood?)
    fiber optic technology (to the premises) is here and will not go away (more like CAN NOT go away), however, until the economy picks back up, it may be cheaper for more people to see how much more can be squeezed out of the existing technologies (DSL & cable) before they want to switch to what may cost more for them.  SO, in your area, the company may not be able to get the permits, maybe just not yet, who knows?   They may also not see customer uptake in your area, yet.  
    You may not be aware, but Verizon has recently sold-off whole states and partial states-worth of fiber-to-the-premises accounts, in what could have been Business decisions based on profit for stock holders.   -If their investments to install it will not be recouperated within the time limit required by their stock holders, it may not be installed for a while.
    .02
    cjacobs001

  • How to operate a fiber optic switch with seria port?

    I have a fiber optic switch ( 3 input channels and 1 output and serial port interface), how i can i operate it in labview? 

    What have you tried?  What is the protocol for the switch?  What is the model of the switch?
    If you are starting from scratch, look in the LabVIEW Example Finder (Help->Find Examples) and look for the Simple Serial Write and Read.  It isn't the best of examples, but it will teach you the beginnings of how to communicate with an instrument.
    There are only two ways to tell somebody thanks: Kudos and Marked Solutions

  • Want to reinstall OS X on old mac before sale.  How do I connect it to internet service (ATT 'fiber optics') without a cable?

    Want to sell old iMac.  It has been backed up, de-authorized with iTunes, and wiped with the 35-pass erase.  Now I want to reinstall OS X but no longer have an internet cable as we have gone from TWC to the ATT 'fiber optics' system since the old Mac was erased.  Please help.

    Be sure to follow Apple's instructions in this document:  What to do before selling or giving away your Mac - Apple Support. If you don't you can create a problem for the buyer and yourself down the line.

  • About the DWDM 15454 optical ring design questions.

    1 Question
      We have 3 ONS 15454 in A,B,C each place. The connection between different locations is a pair of single mode fiber. The topology is A>B>C>A. The A is main datacenter.
      We want to make a redundancy design based on ROADM. The normal transmission is A to B to C to A. For example, when the problem occurred between C and A, like CxA. We want to change the data transfer direction to C>B>A.
      How could I do that through the 15454 configuration software CTC? Which protocol should I use? I am newbie in the optical network. Please give me an easy grasping answer. (Please don't change the topology because we not only have A,B,C we also have other 3 locations to join in the optical ring. I just want to use A B C to make the question easy to be answered)
    2 Question
    The 15454-GE-XPE card mode made me a little confused. Our each location have 2 15216 MUX/DEMUX patch Panel Odd. One for MUX to next location. One for DEMUX from last location. Does that mean I don’t need to open the GE-XPE cards’  MXP mode?
    The reason I want to use L2 mode is that we have 2 GE-XPE cards for each location for different department function.  The connection is 1st SFP port from GE-XPE to 6509 supervisor engine 2T active. 11th SFP port connects to 6509 supervisor 2T standby.   The 11th SFP will have no data until the
    active supervisor 2T  changed to down. I am worried about  if I open the MXP mode for GE-XPE.  The 21th XPF gets data from 15216  DEMUX  panel  and transfers it to 6509 engine 2T  through  1st SFP. But 6509 can’t transfer the data back to 22th XPF through the 11th SFP on the GE-XPE. Because the 11th SFP connection is on standby engine 2T.
    The question is what is the best way to make the right data flow direction from 15216 DEMUX through 6509 and back to 15216 MUX panel. 
    Thank you for the reading and help!
    I will do my best to reply every feedback.:)

    about Question-1
    there are two ways to achieve your requirements.
    use PSM card or second way is to use WSON.
    PSM card is easy to install and it will cost less.
    for WSON solution, your wavelength will switch automatically on fiber cut, but for this you have to make two nodes omni-directional that is source and drop nodes for that wavelength which seeks proteciton.
    to make omnidirectional you need extra piece of hardware.
    if your node has SMR2 cards, than you need one more SMR2 to make it omni-directional.
    if its WXC than you need one more WXC, plus PRE and BST amplifiers.
    so i think, just go for PSM cards :-)
    about Question-2
    The main question is if I open the 10GE MXP mode on the 15454-GE-XPE card, the port 1~10 can’t do any communication with port 11~20 unless I connect them with a SFP switch, is it right?
    yes this is correct.
    Another problem is I confused about the muxponder mode GE-XPE and the 15216 MUX/DEMUX Patch Panel. Are they doing the same job MUX/DEMUX?
    no there is difference.
    there are three modes on GE_XPE card.
    10GE MXP mode:
    if you select this mode.
    than it will multiplex all the traffic coming on port 1 to port 10 and trasnmit it through port 21-1.
    and traffic received on ports 11 to ports 20 is multiplexed and transmit it through port 22-1.
    in other words, all traffic coming on port-1 to port-10 is encapsulated over a OTN/SONET/SDH and transmitted via port 21. same for port 11 to port 20.
    20GE MXP mode:
    all the traffic recevied over por-1 to port-20 is multiplexed and transmitted through port 21, in this port port 22 is not used.
    Layer-2 mode.
    you have to proviion QinQ and SVLANS to pass traffic.
    15216 MUX/DMUX are entirely different, they are used to multiplex and de-multiplex wavelength.
    so if we have 5 GE_XPE cards on each node A and node B.
    and you want to connected each card with each other, suppose port 21 of each card on each node is connected with each other.
    than you need 10 fibers to connect them, one for each Tx----------Rx.
    so instead of doing this, people use MUX/DMUX, in your case it is 15216 MUX/DMUX
    so trunk port 21 of each 5 cards will be connected with these MUX/DMUX and than the signal is transposrted is this way.
    please go through this picture.

  • Infinity 2 package (so fiber optic) on a Home Hub ...

    Hi people I'm a little stumped with whats occurring with my Home Hub 5. I'm moved into my current flat in January and had the Infinity 2 package installed at that point.
    Now I will add that the speed hasn't been terrible, which is why I never really noticed before until I saw another HOME HUB 5 setup today at my cousins and his is wired differently to mine with a completely different modem and router to mine (well I only have the Home hub 5 doing both jobs for me but he has two separate devices given to him one of which was from B.T) thought we pay the same and we live very close to each other. So whats confusing me is that my HH5 has a DSL cable going into the back of the Home HUB 5 as an input from my one and only phone socket in my flat and he has a white modem feeding his Home Hub 5 with a RED WAN cable as an iput.
    So I have just the one cable and mine is a DSL connection (not RED WAN), and his has the RED WAN lead, which is clearly fiber optic feed from a separate modem.
    So does this mean I only get DSL+2 max and not fiber optic speeds??? because clearly I dont have fiber optic running into the back of my home hub. I'm paying for A BT infinity 2 package which I'm guessing should be a Fiber optic set up but yet I have DSL cable or can they make me pay the same and give me older technology???
    As mentioned I was at my cousins earlier today and he pays the same as me money wise, he is four streets away but yet has the RED WAN input (which is clearly fiber optic) and Im paying the same but yet only have a DSL input.
    Now I have looked online and it would appear that they may only have to wire fiber optic to the house (curb) and the internal wiring from the master bell socket to the whole building is down to my land lord but my question is thought should I be paying for a fiber optic package when I'm clearly on a DSL connection package inside the property??? should this of not been mentioned to me when it was set up, like "sorry mate I'm fitting DSL and not fiber optic here, enjoy"
    My other question is after this discovery today wanted to get rid of the Home Hub 5 for a third party modem/router which I already had. I have a Belkin DSL+2 from my last address but always thought I couldn't use it here because I was unaware that I was running DSL, so today I plus it in and set it up correctly and now the Belkin cant/wont connect.
    I have ran speed check tests on the Home Hub 5 and I'm getting about a ping of 29 and above 70 mbps down and above 18 mbps up, but that's only to one site and that's only minimal packets of data (I have no idea how reliable these tests are) (speedtest.net)
    Just with the new Belkin flitted (its a modem and router) it cant connect as the DSL connection bums out all the time every time I try to connect.
    I'm guessing this is because for a DSL connection in the flat its quite good and the Belkin cant handle it???
    but if you try and find a modem/router which is fiber optic via a DSL connection, there is no such thing, how is my home hub 5 running such high ish speeds via a DSL connection??? and can I get a better modem/router than the free Home Hub 5 which will run off a DSL connection but at fiber optic speeds???
    Should I be getting these speeds??? are the speed tests talking rubbish???
    Can I get a better modem router than the home hub???
    Please help the Home Hub 5 is really not helping my gaming :-(
    Many Thanks
    Rich.
    Cornwall
    UK

    You have a Homehub 5 which has a built in VDSL modem. Your speeds indicate you are on Infinity 2. You would not be able to get those speeds on ADSL. To check you can  use this speed tester then carry out the further diagnostics and post back a screen shot of all the results including your IP profile for up and down. This test must be done with a wired connection.
    http://speedtest.btwholesale.com/
    Because you have a Homehub 5 can you also post the stats from 1-12 by logging onto the homehub management pages then troubleshooting > helpdesk. http://bthomehub.home/ This will show your connection  type and speed.
    Your cousin will more than likely have an Openreach modem and a Homehub 4. The Homehub 4 does not have a VDSL modem built in hence the reason it must be connected via the Openreach modem.

  • Ether channel between fiber optic ports any difference?

    I will appreciate any help about the below questions.
    there are two catalyst 4506 multilayer switches, Two SFP modules are installed on each switches for uplink purpose. (1000 Base SX fiber optic Gigabit ethernet SFP modules)
    I want to connect two switches each other. Question is;
    1.Can I bundle these two gigabit ports (ether channel) and get Two gigabit connection between switches ?
    2.If I can do it, what happens if one of the lines fails?
    I know I can configure ether channel between copper fast ethernet ports but I am not sure If I can benefit same feature for 1000 base SX fiber optic ports.
    Thank you very much for helping :)

    Hi Friend,
    You can run a command "sh port capabilities " and that will how that whether that ports are capable of etherchannel or not.
    Also AFAIK SFP ports are just the physical medium so it does not make a differece, they should be capable of etherchannel.
    Also if one port of the channel goes down traffic will start trasversing through the other port so it will take care as redundancy. It will behave like other etherchannel which you cofnigure with copper ports.
    HTH, if yes please rate the post.
    Ankur

  • Can't see others in iChat over Fiber Optic connection

    This was a strange, recent occurence. For the past few years, those of us on Macs (G5's and a PowerBook with latest OS and updates) have been able to communicate via iChat. With new offices, most Mac users went to the new building. I'm still in the old building where the network server is kept. Once the others moved, we are no longer able to see each other via iChat. The only exception are two stations in the same office which share the same Ethenet wall connection.
    Bringing any station back into the old building and connecting to the network will allow this station and my station to see each other, so I've narrowed the situation to our cable connection from the new building to the network server here in the old building. The cable used to bridge the two buildings is a Belkin 3 meter Multimode LC/ST Duplex Fiber Optic Cable.
    I am able to see other Macs on the network through the Finder. I've just lost iChat and VNC capabilities since we've gone to this connection. If anyone has any ideas on how to correct the situation, whether they be adjustments to the Macs' Network settings or ideas of proven alternatives to the connection, all would be appreciated.
    Thanks.
    G5   Mac OS X (10.4.8)  

    Hi DrVvack,
    Welcome to the Apple Discussions
    It is likely that the computers in the new building are in a different subnet of the LAN
    Lets say you are at 192.168.1.100.
    Others in your building also start 192.168.1.xxx
    The other building is likely to be on a router for that building. Now the router is probably at an IP that is in the same group as your computer - but it will be issuing IPs of it's own.
    Now a bit like street numbers this other router could be using a similar set of IP addresses (192.168.1.xxx) but it is the IPs in relation to the original routing device that makes a difference.
    You can get around this by creating a Virtual Private Network then the Bonjour side of iChat will see everyone.
    Another option is to have the second router in Bridge mode or Access point mode (not routing) and have everyone have an IP from the original device.
    10:41 PM Wednesday; February 14, 2007

  • Interdepartment connectivity via fiber optics, which wquipment to use

    I have given a task to interconnect department with one another via fiber optics.
    This means there will be a core switch in a server room which will interconnect these departments. The each departments are away from server room approx 900 meters and 1500 meters. Kindly tell me which fiber optics cable to use ( single mode or multi mode) and which cisco switch to use in the in the core ( server room) and in the departments (one deptt is 900 m and other is 1500 meters away from server room) . kindly also tell me which fiber optics module to use in the switch and which connector.

    Since in both cases you are well within the reach of multimode fiber, it makes no sense to look any further, as it is the most cost effective solution unless you need 10 gigabit performance.
    As to what switches to use, there are a lot of variables once you get past the basic requirement here of having of having two optical ports on the one in the server room, and one optical port for the other two. Other considerations are how many ports do you need in the server room, and in each of the two departments. Then features, performance, and reliability factors come into play, along with budget.
    If you don't need a lot of ports, and you are looking at normal office levels of traffic, 3560's might be a good choice. You could put a second one in the server room, and duel home the servers and department switches to them to add redundancy. That would make a single switch failure unlikely to take out the whole network at one time. One the other hand if you need hundreds of ports, have a mission critical situation, or expect intensive levels of data traffic, then you will need to look at high end switches such at the 4500 and 6500 series.

  • How to build a measurement system using NI products and the system is outside PC

    I would like to build a system that uses NI's following products:
    1. Wave form generator
    2. Switches
    3. A/D board
    My question is: How to build such a system such that
    the system is outside PC? For example, the system is
    like an ordinary instrument that can be connected to
    PC through RS 485 port.
    Thanks!

    If you are planning on using SCXI, you have two options. You can still use the PXI-1000B chassis, and you will need to connect your DAQ board to the SCXI system with a cable.
    You can also consider using a PXI-1010 or PXI-1011 chassis. We call them combo chassis because they come with some PXI slots and they have an SCXI chassis attached to them. In this chassis, you can connect your DAQ board in the PXI slot closest to the SCXI chassis, and the DAQ board will communicate with the SCXI chassis through the internal PXI backplane, so you will not need to connect them through a cable. The PXI-1010 chassis has 8 PXI slots and 4 SCXI slots, and the PXI-1011 chassis has 4 PXI slots and 8 SCXI slots.
    The MXI-3 extender will let you control any PXI chas
    sis from a desktop. Keep in mind that there are two interfaces: the PCI-PXI-8330, which uses a copper cable, and the PCI-PXI-8335, which uses a fiber optics cable. The advantage of the fiber optics cable is that it is less likely to have noise and the PXI chassis can be up to 200 meters away from the computer.
    Now, given that your signals have a 150V amplitud, you will need a SCXI-1127 module instead of a PXI-250x.
    Finally, we do not have an amplifier in PXI form that can read a 50 KHz - 300 KHz and peak voltage 5v, and amplify it to 120v. However you could check other PXI vendors for those boards. You can find some information of third party vendors by going to the NI Developer Zone and clicking on the Third Party Product Advisor link on the left.
    Hope this helps,
    Claudia Lorente
    Applications Engineer
    National Instruments

  • Can I Replace or Extend the Fiber Optic Cable?

    There is a cable that runs from the Verizon box outside of my house, comes into the basement corner  of the house, and plugs into the router.  Do I assume this is fiber optic cable?  This cable is about 3 ft long which is problematic in getting a good signal throughout my house.  I would like to move the router up one floor.  All the other cords and cables are long enough to do so.
    My question is what is this cable called and can I replace it or extend it myself?  If so, is there any pertinent information I would need to know to do so such as part names and where to get them.  If not, how do I get a longer cable installed.
    I am not tech savvy and grateful for any help. 
    Solved!
    Go to Solution.

    rebeccajeanne wrote:
    Do I assume this is fiber optic cable?  
    No.  The fiber optic cable attaches to the Optical Network Terminal (ONT), which is usually outside.
    For speed tiers < 100Mbps, the installation is usually coax from the ONT to your router.
    For speed tiers > 100Mbps, the installation is always ethernet from the ONT to your router.
    If the cable from the ONT is indeed an ethernet cable, you can certainly replace it.
    The ONT has a standard RJ45 jack which the other end of the cable is connected to.
    You can confirm if you're connected  via ethernet in two ways.
    1)  The WAN ETHERNET light on your router should be lit and the WAN coax light should be off.
    2)  The ethernet cable should be connected to the white WAN port on the back of your router.
    Since your ONT is outside, replacing the ethernet cable presents a couple of problems..
    1)  When VZ installed the cable, they passed it through the wall, then sealed the opening with silicone.
    You need to make sure you can fit a preterminated cable through that opening unless you're capable of terminating a cat5 cable yourself. 
    2)  You need to reseal the opening with silicone.
    An easier option is an RJ45 coupler.
    http://www.amazon.com/Britta-Products-RJ45-Coupler-F-F/dp/B000BSLW8U
    rebeccajeanne wrote:
    Can Verizon replace it for a longer cable?  
    Yes, but they will charge you a truck roll to do so.  $88 or so.

  • Fiber Optic Power lvl

    I own a 20" Imac (2006) for 3 years I have been using the fiber optic output to my receiver via a 3 port fiber optic switch shared with a windows cpu and my tv. It took me about 6 different types of switches that to find one that did not reduce the signal to the point it was inoperable.
    About 6 months ago it just decided to stop working I assumed the cable had been damaged due to a 1 year old yanking on it. So I put off investigation until I got around to obtaining a new cable 10' (old was 10'as well) when I replaced the cable, however, it still would not work.
    I figured my switch had gone bad or something so I then checked the other devices just to be sure they still worked. I even switched to the port the Imac was using with no problems (using the new and old cables that were for the Imac). I can bypass the fiber switch and plugged the Imac directly into the receiver with no problems. While not detrimental I used to enjoy not having to expose my fiber ends to potential danger of contamination or damage. Not to mention not having to reach behind my receiver when I want to switch devices.
    I do realize my problem ma be a bit unique but has anyone heard or know if a update has recently lowered the power output of the Imac's TOSLink output port? Or if anyone knows of a better fiber switch with 3 ports that may have less loss I have tried 6 ranging from $9.99 to $78 the one I am using is
    http://www.amazon.com/gp/product/B0014Z29RW/ref=pdlpo_k2_dp_sr_3?pf_rd_p=486539851&pf_rd_s=lpo-top-stripe-1&pf_rd_t=201&pf_rd_i=B0 00812QC6&pf_rd_m=ATVPDKIKX0DER&pf_rdr=11S9KZYH7K9B3BJ8QPHB
    Any help or input would be greatly appreciated

    I haven't heard of anything about an alternate power source for Digital Voice. I don't see how that is possible considering Digital Voice essentially works just like FiOS POTS does. The ONT still needs to be powered by the Battery Backup or AC Power, and that's all that would be to it.
    Now that you have FiOS, it's going to be difficult to get the Copper service reconnected. Verizon will not normally reconnect the copper unless there's something extreme or there is a medical need that requires the assurance of a copper line. You can ask around to see if you can get it connected or not, but failing that, I would invest in a small generator (tiny camping one, power draw is basically idle run lol) to keep the ONT powered up as needed for the phone service, if it is at all possible to do. The Fiber Optic cabling will remain lit since the Central Office should remain powered off of Diesel Generators/Turbines/Batteries for quite a while.
    ========
    The first to bring me 1Gbps Fiber for $30/m wins!

  • Trace Fiber Optic Cables

    Hi Folks
    How to trace Fiber Optic Cables,I m Working in environment where no Fiber Optic Documentation  and I Don't know how cables are running between fiber patch pannel on the rack on access switch and the fiber backbone .no label to start working and prepare documentation

    Are the fibres carrying live traffic?  If they are not live you can trace them with a red light source, its like a pen that has a laser that operates in a visible wavelength, heres one I found which seems to use very bright LEDs:
    http://feedthenetwork.com/cable-and-satellite-tv/visible-light-use-for-fiber-continuity-testing
    And this one goes 10km with a laser:
    http://www.dhgate.com/10km-red-light-pen-fiber-optic-test-fault/p-ff8080812b2e44e5012b48263732532d.html
    With everything you get what you pay for and cheaper ones will not go as far as the more expensive ones.
    With my laser based red light source I see a break in a fibre patch cord and I can also put a gentle bend in the fibre and it will leak out the side of the sheath.
    I hope this is obvious but DO NOT look into the end of a connector EVER, you can't see 1310nm or 1550nm but it will give you a very cheap laser eye surgery job and will almost certainly damage them beyond repair.
    If the fibres are live you may have to disconnect them to see which port goes down, thats the safest way to do it anyway. 

  • Fiber optics and Network Security

    Just changed internet providers and wondering about security. I have not changed my settings from my previous set up. I am running a Router into two Airport expresses and a G4 file server running 10.4.11 my wireless network is password protected as well as all my computers and router. I even have my sharing and access restricted to just my network computers. I guess my question is I have heard that with the new Light Band or Fiber optics which ever you prefer to call it may allow other users on your same node to access your network. What I want to know is
    1. How can I check who has been accessing my network if anyone
    2. What steps can I take to secure it the best way possible specifically maybe restricting access by mac address? Or is that just overkill?
    3, Lastly Since my wireless shows up on my computers how can I see if it is visible to anyone else I do have closed network selected.
    Thanks,
    JJ

    Assuming that your router is running NAT, you shouldn't have too much to worry about.
    You'll know if you're running NAT because your machine will have an IP address like 192.168.x.x or 10.x.x.x.
    The NAT device essentially separates the network into two logical parts - there's the big, bad public internet part, and a separate, private internal part.
    The fiber connection will, ultimately, link to the public side and that will be visible to other people on the network, but the private, internal part will only be visible to systems on that network.
    In order for any device on the public side of the NAT to get to a machine on the private side you have to configure port forwarding in the router. If you haven't done that you don't have too much to worry about (at least from the general internet getting to your systems).
    Note that none of the above is specific to fiber connections. It's exactly the same for cable and other broadband media.
    The internal network, though, is a different matter, especially since you're running wireless.
    1. How can I check who has been accessing my network if anyone
    Check your router logs. It should log every time a device connects to the internal network and requests an IP address from the DHCP server.
    2. What steps can I take to secure it the best way possible specifically maybe restricting access by mac address? Or is that just overkill?
    MAC address locking is another layer of security that can make it harder for a malicious user to get on the network. Like most things, though, it isn't an absolute but the harder you make it, the more likely they are to move onto an easier target.
    3, Lastly Since my wireless shows up on my computers how can I see if it is visible to anyone else I do have closed network selected.
    That's a good question. Part of the answer is trust - if you've selected a closed network then you have to trust that the router isn't broadcasting its name.
    The easiest way to tell is to bring in some device that's never connected to the network and see whether it can see the network or not. Be aware, though, that this is like MAC addressing - it doesn't guarantee security, it's just another layer

Maybe you are looking for