Two MDI-X Devices Using Only Straight Through Cables?
Aug 31, 2011
I purchased a D-Link switch that supports MDI-X so I should be able to use only straight through cables according to the manual. My Router (Wrt54gs) also supports MDI-X, yet when I plug a straight through cable from port 4 on router to port 1 on the switch -> then a straight through from port 2 on the switch to my computer, I don't get an IP address.If I connect a crossover cable from the router to port 1 on D link switch -> then straight through from port 2 to computer, it works just fine.I am going to purchase an extra crossover cable to use for this but I'm really curious as to why it wont work this way? DES-1105 is the model of the switch. "THE DES-1105 CAN BE CONNECTED TO ANOTHER SWITCH OR OTHER DEVICES (ROUTERS BRIDGES ETC) VIA A TWO-PAIR CATEGORY 3,4,5 UTP/STP STRAIGHT THROUGH OR CROSSOVER CABLE."
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Jul 17, 2012
UTP cables are crossover cables or straight through??
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Jan 20, 2013
I'm looking to deploy a pair of 6500s running VSS. VSS will be established over a pair of 40GBASE-SR4 QSFP+ transceivers in each switch.Do we need MTP/MPO crossover cables or straight through cables to connect the QSFPs?Since the two switches are sitting side by side the MTP/MPO cables will be passed directly between the two racks.As a result there will be no intervening fibre fobots used.
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Mar 24, 2013
I have a scenario where I may have to run VRFs on a router that is currently facing an ISP as a BGP peer. peering two BGP peers, one of which is VRF aware (and hence configured within the address-family ipv4 vrf X subsection) and the other is not? (the BGP aware and internet facing segment will go into its own VRF where previously this router was only in that VRF and hence had no awareness).Are there any caveats or restrictions? Does the presence of the VRF throw the ISP peer?
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Oct 28, 2012
I just got done running CAT 6 wire's into different rooms and placing jacks on the wall which all works correcting going into the patch panel. The problem I am having is that the Access Points on the ceiling I decided to make it a little easier and use regular network cable and cut one end off and place it into the patch panel the same way as all the jacks. The AP's are POE and they are just not getting on the network. Do I need to do something different for this cable?The way I punched all the wall jacks and all the cables to the patch panel is by using section B on the jack so because of me cutting a cable and leaving one end on, should I use A or is there something else I should do?
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Dec 28, 2012
I have one running UTP cable of around 50m, terminated at a point. Is it possible to split my cable so that i can terminate two points - so that i can connect my 2 Pc without a switch in.
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May 21, 2011
I have a desktop and a laptop computer. both equipped with Gigabit Lan port... I connect them with Straight cable by assigning both computers IP address. I havnt use any switch or router between computers.... The problem is that my transfer speed is about= ~10MB/s..... As far i know the transfer speed should be around 70-80MB/s (125MB/s for Gigabit Lan).....
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Jun 17, 2011
what is the difference between cat5e and straight cable?
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Feb 9, 2012
easiest way to convert a cat 5e crossover cable to make it a straight? I have 2 PCs networked & am introducing a router & need to covert the cable without having to rewire it if possible.
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Dec 5, 2012
I successfully authenticate through ACS to my Identity Store, but only get dropped into a non-enable prompt: ciscoasa> How can I get an Authenticated user directly into enable mode?
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Jun 26, 2011
I'm currently training at a PC store.Me and this other guy are trying to figure out some networking.So far we've file shared 2 PCs with 1 crossover cable.Now we're trying to figure out how to do this with 3 PCs and NO hub, switch, router, etc.I have my theory and he has his.
His theory: One of the computers need an ethernet card so 2 crossover cables can be plugged into it.(The MOBOs only have one port to plug in Cat5s)
My theory: Cut 2 crossover cables in half. And put the three ends together so the wires are touching each other, then tape it. For example green to green to green, orange to orange to orange, etc.Here's an example picture: Now I know my theory would work with audio but me co-trainee isn't so sure if it will work with networking.
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Apr 4, 2011
Can you use a 110 cable in a frame that has Krone blocks?
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Dec 19, 2012
I've seen where the micron is printed on a fiber strand, and that you can identify the connector type, but how do identify the difference between a 50 micron OM4 MMF, a 50 micron OM3 MMF, and a 50 micron OM2 MMF?
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Mar 20, 2011
How to I join two ethernet cables without using a switch ?They are same as cat5 cables right ?Is there some sort of adapter to connect two together ?
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Feb 14, 2012
What are the different types of network cables
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Aug 24, 2011
What is it called when you use two cables to connect two switches together.
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Jan 1, 2012
i want to connect 2 ethernet cables together threw a wall jack but i dont want to wire it. Do they make a wall jack that you can just plug in each side
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May 16, 2011
I had one straight through cable connecting one switch and a pc in my office. The cable is approx 90 metres in length. The cable has been cut in between by rat. Now can I join those 2 cables by a coupler, if so will it increase latency, what type of crimping is required, straight through or cross cables. I think 2 cross cables connected by a coupler becomes straight.
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Jul 29, 2012
We have 2 internet providers and I would like to find some way to switch our 5 computers between the 2 internets without having to unplug the ethernet cables everytime someone wants to switch. Is there some type of switch we can buy for each computer to do this or is there no such thing?
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Jun 26, 2012
I have a couple of questions concerning OM3 fiber optics <link snipped>. As i was searching for a vender to provide the cables needed for a job i have ran into OM2 & OM3 fiber patch cords. Besides the color difference, is OM3 the new revolutionary cable type being used now and days? The specs i have seen between the 2 are quite similar, both are 50 microns
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Mar 5, 2012
Plan a network to Connect 2 buildings 3 storey high with a distance of 500m between each building. Each floor is occupied by the Finance Department, Administration Department and Computing Department.the report should have the following items. Anything extra is encouraged.
a. Introduction
b. Network Diagrams
c. Devices that will be used.
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Feb 4, 2011
Crossover T-568A to T-568B cables - I thought these were a thing of the past, but I've seen some recent articles talking about them so I thought I'd ask...
I will have the following connections:
Modem to Router
Router to Switch
Switch to PC
Should any of these be crossovers?
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Aug 19, 2012
There are 2 locations to choose from. One location requires me to run longer CAT6 cables. 7 of them. The other location requires me to run a longer RG6 cable. (the CAT6 runs would then be about the shortest they could get)So, I guess I need to know which can handle running parallel with power cables better, 25feet of RG6 or CAT6?The parallel with power cable is only for about 6-8 feet, but that's already more than it should be for CAT6.
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Jun 3, 2011
I'm an electrical engineer by trade, and fairly inept at networking. That being said, I am looking to extend the maximum range of my networking equipment. I have a job which requires around 500' between switches, and am trying to find a clever way to bridge the gap. The span is direct-burial cat5e, and has very low bandwidth requirements. I know you can buy off-the-shelf range extenders, but they are expensive, so I thought maybe I could avoid it.
1. It my understanding that the lower speed protocols (10 Mbps rather that 100, 1000) have a longer maximum operating length, because they utilize a lower frequency and consequently see a lower impedance. If so, are there network switches that I can force to use the lower baseband frequencies?
2. Should I bother trying to find a cable with the lowest characteristic impedance (or will they all be similar)? Cat 5e is pretty good, yes?
3. Should I do half or full-duplex; is this something I can control as well?
4. What network switches are cheap and allow this type of configurability?
5. If I attach other switches to the ends of this 500' ethernet bridge with auto-negotiating feature, will there be any conflicts or they will all get along?
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Aug 1, 2011
tell me the reasons that could cause the decreasing of the bandwidth in the TP cables? just 3 or 4 (main) reasons.
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Apr 27, 2012
I was looking for flat LAN cables so it would go under my door to the router located in another room. When I search for "flat ethernet cables" on Amazon, I get a bunch of results on "snagless" ethernet cables.
This is slightly cheaper than flat cables and it's from Belkin. Do the 2 terms mean the same thing (ie. flat/thin)?
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Jan 4, 2011
I bought a DIR-655 last week and have a very odd problem: have set up the DIR router after my Modem/Router Netgear DG834 when i connect a laptop with LAN cable to one of the LAN ports on the DIR i can access internet without any problem.When i search wireless network from my laptop the DIR turns up and have excellent reception(4-5bars).
This works fine when i start for ex. google, but then after clicking on a link or trying to access any other webadress, the internet disconnects?? (i still have excellent reception between the router and laptop.)It also seems that the internet connection is reestablished automatically after 1-2 min, but disconnects again after a few minutes. I have the same issue with WII, the WII console finds DIR but when I'm trying to update the firmware in the WII console the connection stop working.
One more Q: when i connect LAN cable from modem to DIR i get no internet access, should it be that way? How u are suppose to connect LAN cabels between modem/DIR/stationary PC?
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Aug 17, 2011
In what order the 8 cables go into the octal plug.The cable is a X.21.DTE 8 LEAD OCTAL part No 72-1100-01. The cables are not in numerical order (as in 0 to 7 as per the serial ports). I'm trying to trace cables and don't have a spare cable to examine. So far I think the order is 0,4,5,1, 2,6,7,3?
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Aug 15, 2011
I have installed my new E4200 and it works beautifully. I have several wirelss adapters and a few wired connections through powerline adapters. I also have a second VPN router attached to the 4200.I can see the wireless connected devices with the associated IP addresses. If I plug a laptop directly into the Cisco, I can of course see it.However, I can see none of the devices attatched to the powerline devices? I have a securty cam connected via the powerline and want to know the IP address. I checked with cisco technical support via chat and they said it is impossible. I have used 2 previous routers with the same configuration and can see all devices.
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Jun 1, 2012
Currently my home network is being switched via TrendNet TEGs80G unmanaged gig switches. I have been using them for about a year now with no issues. As my home network becomes more advanced, I recently just added a Cisco ASA5505, I am thinking about swapping those unmanaged devices, 4 of them, to managed. I was looking at the Cisco SG300-10 for upstairs, and a 16 port variant for my main core. These devices do not support full Cisco IOS cli, but they are manageable with a rich feature set nonetheless. My question is, should I swap the unmanaged devices with the more expensive Cisco devices, or just keep what works and save the money until I really need to spend it. As previously stated, my home LAN works just fine as it is, however my WiFi, NTV550s, server and workstations are all on the same network. Probably not the most secure but it is what it is without VLAN support.
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Feb 11, 2013
Moved into a home that has a wiring closet in the basement. Typical wiring closet setup, Cat 5 cables and Coax cables from the house outlets terminate there. There is a Suttle sam v8m voice distribution module installed. Looks exactly like the one in this user manual:Page 5 of 8, Wiring Diagram.URL,However, there is NO Sam D8 switch below installed in the wiring closet. The Cat 5 cables from the home outlets enter the wiring closet and plug directly into the Sam V8m.Can a comcast modem be connected to the Shuttle Sam V8m to make the Cat 5 outlets hot? Or, does the Sam D8 (or similar) need to be installed?
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Dec 11, 2012
Recently encountered this problem where one cable suddenly not working properly.We are using 568B as our standard cabling here, lines 1,2,4,and 5 are working as of checking,but lines 3,6,7, and 8 are not. Before it was working flawless. The cable are buried underground inclosed in a pvc hose.
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Jul 14, 2011
I live in a frat and I am currently researching how to design and configure the most efficient network for the house. However, one of the other big problems we have is connectivity of our ethernet cables. We have an IT room with 2 switches that feed ethernet cables to all parts of the house and connect to an ethernet box in the wall where we can simply wire in our internet connection. We have wireless routers too but to keep the bandwidth usage across the WAP's I want to let people use the wired connections. However, many of the connection in the house do not work at all. I plug in my laptop to the wall jack and it gives me the No Internet Access notice. I don't understand why it works in some rooms and not others. All jacks seem to go into the same switches at the other end so I cannot figure out what the problem could be.
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