Gigabit Ethernet (GbE or 1 GigE) is a term describing various technologies for transmitting frames in a network to a speed of Gigabit per second (1,000,000,000 bits per second), defined in IEEE 802.3-2005.

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What is the difference between these 2 twisted pairs?

I have two cables marked: BELDEN 1583e utp cat5e 4pr awg24 iso/iec 11801 en50173 ec verified 100 ohm 1002069 ESSENTIAL utp cat5e by nexans EC verified 4pr awg24 lu0306 Both connected to TL-SG108E ...
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30 views

How to kill LOW bandwidth connections?

I am sitting behind an absolutely terrible router (NVG589, NVG599 is no better) mandated by my ISP, AT&T. The problem is that it has an abysmal limit of 2056 simultaneous connections. Since my ...
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2answers
66 views

How can powerline ethernet adapters be faster than their hardware ports?

On many of the powerline ethernet adapters, they claim high speeds of 500 Mbps, however, I've noticed that the actual jack on the device is only 10/100 Mbps speed. For reference - look at the specs: ...
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34 views

Is there an easy way to retrieve the link speed of network devices?

We have a mix of 100 and 1000mbps cabling in this office with cabling that ranges from ancient home-made cat5 to brand new cat6, and a mish-mash of semi-accessible switches and network segments that ...
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26 views

Low speed on ethernet port

I have a Dell Latitude E6420 laptop, which has a gigabit Ethernet port. I have a fresh install of Windows 7 on the laptop. I can't get speeds higher than 30Mbps, and I can't figure out why. This is ...
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89 views

Maximum Bandwidth through gigabit switch

This seems like a simple question, but I can't find a definitive answer for it. I have four devices connected to a Gigabit switch as in this diagram: Can I get the full GBit bandwidth from A-B ...
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211 views

Can gigabit ethernet Auto-negotiation detect Cat5 cable and downgrade the mode automatically?

Under a Win7 PC with gigabit NIC connected to a gigabit switch, both NIC and the switch support 1000BASE-T full duplex mode, however it is connected by a Cat5 cable. Since both devices support ...
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63 views

How to find proper MTU size for FTTH EPON?

I've recently moved to a ISP that provides a 4mbps connection through FTTH(Single OFC). There is a EPON ONU in my premise from which a RJ-45 lan cable is connected to my Intel DH67CL1 board based PC. ...
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56 views

Multiport connection between home router and switch for better LAN bandwidth

I have quite a few GigE devices at home that I’d like to have better LAN speed between them, but at the moment, all I have available are 3 ports on my (GigE) FTTH router (It has 4 but can’t use one of ...
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105 views

How can I create Local Loopback on Linux (RedHat or Debian)?

How can I do the same on Linux (RedHat or Debian)? I need to create local loopback as shown herein: ...
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259 views

10/100Mbps router overwhelmed by Gigabit switch & its devices?

I believe I've got the scenario outlined in this SU answer, where my 10/100Mbps router is being overwhelmed by a Gigabit switch and the devices connected to it. This comes into play with frequent ...
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57 views

Home NAS design?

There are a lot of questions about NAS here. I'm looking for input on how to expand my home network: with a (4-bay) NAs. Current setup: 1x PC (gigabit ethernet), 1x Mac (gigabit ethernet), 1x media ...
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92 views

What is the point of a 100Mbit router that has 802.11ac Wi-Fi?

I saw a few routers on the market that has 10/100 Mbit speed on cable and a 802.11ac Wi-Fi that is capable for gigabit speed. What you can use that speed when the 100Mbit cable connection will be a ...
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42 views

Connected Gigabit switches with 100 Mbit devices

I need a network with two unmanaged switches. Each switch will have two, 100BaseT devices attached. 100Base devices on one switch communicate with devices connected to the other switch. If I ...
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2answers
365 views

windows 8.1 broke internet

recently I was forced to update to windows 8.1, and now neither my WiFi nor Ethernet works at all. I have a Qualcomm atheros Ethernet adapter and an Intel WiFi one. I've tried changing drivers ...
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67 views

Are there any unmanaged gigabit switches available without indicator LEDs? [closed]

I need to put a switch into my home theatre stack and am looking for something without blinking indicator LEDs. I’ve debated taping over them but that looks ghetto and actually requires some precision ...
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41 views

Can only communicate with NAS via one Ethernet adapter and not the other

My main home computer is a desktop equipped with an ASUS P7P55D EVO, which comes with two Ethernet network ports; Windows labels them Realtek PCIe GBE Family controller Realtek PCI GBE Famil ...
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97 views

What speed can I expect using Gigabit over UTP cat 5?

Our LAN is based on a Cat 5 cable, while computers are running on a 100mbs NIC. I was wondering what speed should I expect upgrading NICs and hub/switch to Gigabit. Eventually should I replace the ...
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236 views

All components must support gigabit ethernet to get gigabit speeds?

Given the following: I have a D-Link DIR615 router (with DD-WRT firmware) that I use to connect to internet with PPPoE protocol. The router does not support gigabit ethernet. I have 3 computers in ...
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37 views

How full duplex operation is possible in 1000Base-T?

Can you provide good document for under standing the full duplex operation in Ethernet not 100Base-T because dedicated RX and TX lines are there. But in 1000base-T how data is transmitting both nodes ...
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72 views

Is Wake On LAN supposed to work even after AC power reset?

So, if you unplug the AC power cable from the wall and re-connect it to the PC Power Supply, is the Wake On Lan functionality still supposed to work on a PC? The WoL functionality is enabled in Bios ...
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1answer
395 views

Not getting gigabit Ethernet speeds between 2 computers

I am trying to connect two computers together using a Cat6 cable. Both computers have gigabit Ethernet cards, and the "Network" tab in Task Manager reports the link speed to be 1Gb/s for both. One ...
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48 views

Connect main (serving) PC to router or to switch in high traffic LAN?

I am restructuring my home network after finally upgrading my aging Linksys WRT54G router to an Asus RT-N66U. All desktop computers are gigabit ethernet wired connections utilizing multiple switches. ...
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47 views

Ethernet cable(port) not working at all while it works fine wireless and on other machines

I have an MSI GE60 2OE and recently my Ethernet cable or port won't load any videos like sometimes if I disable and enable it from network and connections where it shows my Ethernet port it will work ...
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66 views

Can i join one server with multiple ethernet wires to switches

I saw one video where the user has one 100mb switch and other Giagbit switch. Then he has his all servers first network card connected to 100mb switch and second to the Gigabit switch he says that ...
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303 views

Windows 7 File Transfer Speed Over Gigabit is Exceeding Expected Limits(!?)

I have two PCs and a network switch, all gigabit hardware. I transferred this ISO file between them and noticed the Windows copy dialog reporting faster rates than I expected: 181 MB/s ? How could ...
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62 views

Why are my CAT-5e connections connecting at only 100baseTX?

I'm doing some rewiring. Several years ago I ran CAT-5e cable throughout my house. They terminated using standard wall plugs, on the other end to a patch panel (punch-down), which then patched into ...
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5answers
662 views

How can I achieve Gigabit LAN speed without wires?

I have a Netgear Router which connects to my Cisco router. I have a gigabit switch which connects to my servers in my Garage.. I am currently connecting with wifi adapter on my desktop (in my room) ...
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49 views

P8Z77V built in ethernet fails with Code 10

I have an Asus P8Z77-V motherboard with a built in intel 82579V adaptor. For some odd reason its being detected as 82579LM. I'm running windows 8, and the system worked properly before. Its a known ...
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1answer
442 views

Ethernet adapter with static IP configuration not accessible on start up

My home workstation motherboard has two Ethernet adapters. Both ports connect to the same local network and Internet router. The only difference is one is set as DHCP while the other has a static IP ...
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1answer
31 views

File transfer over specific network

I have 5 machines running Windows 7 32-bit, and 2 machines running Windows XP SP3 32-bit. I use workgroups, not a domain. I have Simple File Sharing enabled. All the machines have Gigabit NICs, with ...
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136 views

Can I connect 2 Gigabit lan connections between 2 switches?

I have 2 switches (one functions as a router with the broadband connection) both of them have 4 gigabit ports. Currently they are connected with a single cat6 lan cord and work fine... I would ...
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586 views

How to direct connection local lan + WIFI internet?

I am running 2 computers. Each have a WIFI connection to the router (other location in the house) which provides internet. I would like now to directly connect those 2 computers via their Gigabit ...
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617 views

Why am I only getting 100 Mbps from my home network?

I have an external hard drive (a WD 2TB My Book Live) connected to a router (a D-Link DIR-615 running DD-WRT) via ethernet cable. I also have a desktop with a "Realtek PCIe GBE Family Controller" ...
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2answers
61 views

Bat file to backup when the cable is connected [duplicate]

I need to do a Bat file (or something like that) that do a Incremental Backup of some especified folders when, and just when, the Ethernet Cable is connected. How can I do it? I have no idea how can ...
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3answers
4k views

Running Ethernet over two phone lines

I am trying to run Ethernet through my house along existing phone wires. I had originally planned to use the phone wires to pull the cat5e cable, but it appears the phone lines are stapled to studs ...
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1answer
7k views

Windows 8.1 Slow Gigabit Networking

I think I'm going mad, my recently reformatted computer (from Windows 7 64bit to Windows 8.1 64bit) will no longer transfer any files to my NAS at more than a 100mbit connection speed. Whilst on W7 ...
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954 views

Does the category of RJ11 modem cable matter?

I have a VDSL2 connection and of course a modem. I have a Cat5 DSL RJ11 cable and I was wondering how to tweak the performance. Would it be possible to use a Cat6 or Cat7 DSL RJ11 to gain more ...
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298 views

How to configure gigabit NIC to connect to 100mpbs router?

I have an Ubuntu 12.04 box with two "Intel Corporation I350 Gigabit" ports. These work fine with my cable modem at 1Gbps speed. I tried to have my old Linksys wrt54g router in between. The wireless ...
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192 views

If USB 2.0 max speed is 35MBp/s (480 mbits) why am I transferring at 120MB over gigabit?

I have a USB 2.0 External HDD and when I transfer something to/from the HDD over a gigabit network, I have a 120MB transfer speed, but USB 2.0 over supports 35MB
33
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7answers
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Why am I getting 950 Mbps up but only 360 Mbps down on Gigabit Ethernet?

I got two desktop computers talking to each other directly. They both have Gigabit Ethernet capable network adapters. That's 1 Gbps or 1000 Mbps. I have them connected with a brand new 10 meter long ...
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1answer
327 views

How to test the throughput between 2 Network adapters on the same PC? [closed]

The motherboard of my desktop PC features two Ethernet ports. Each port has its own network controller from Realtek and they are both capable of Gigabit Ethernet. Now, I have this crazy idea to take a ...
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1answer
49 views

Preventing Gigabit Loss due to printers [closed]

HOW CAN I MAINTAIN Gigabit Ethernet integrity given this situation: What I have to work with: ** AC-router w/4 port gigabit N-600 router w/4 port gigabit Switch w/8 port gigabit All PCs have ...
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1answer
604 views

150mbps cable internet, but only for some PCs

I just got 150 mbps cable modem service. I have a Netgear R6300v2 router, a Motorola SB6141 cable modem, and a Netgear GS605v4 switch. I have a Sony VAIO laptop that when hooked up to the modem ...
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6k views

Why is my LAN not gigabit?

The in-wall CAT5e LAN cabling in my newly built house (photos during construction) is weird: it works perfectly fine except it only allows 100Mbps and not gigabit. To clarify, the wired LAN ...
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29 views

Switches and negotiated speeds

I need to verify something. If you have a Gig-E network, and you connect a 100Mbp device to this network, and the network is completely switched, the network still functions at Gig-E for all Gig-E ...
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3answers
5k views

When connecting two switches, should I use normal switch ports or the SFP ports?

I have two 48 port gigabit Netgear switches with 2 SFP ports each (I also have two Mini-GBIC copper transceiver modules) Is it best to set the ports up by using the built in ports (i.e. plug port 1 ...
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2answers
985 views

Gigabit - Throughput bound more by CPU/RAM, or Disk IO?

Setting up some network file shares. I'm looking at either a NAS or a headless desktop PC. Both have gigabit ethernet, and comparable SATA connections. The main difference being CPU and RAM. How much ...
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1answer
223 views

Should a RAID array of 3x7200 RPM HDDs be able to saturate a gigabit ethernet link?

I have a ZFS RAIDz (RAID5) array of three 7200RPM SATA2 drives in a FreeNAS virtual machine. I have multiple machines connected to this VM over a gigabit network. I'm seeing via bandwidth graphs that ...
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2answers
669 views

Throughput from devices on gigabit switch to gigabit router

I think this is a pretty simple question, but I wanted to either validate my thinking, or for someone to tell me I'm wrong. My router at home has 4 gigabit ports. So, obviously, each (supported) ...