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Questions tagged [gigabit-ethernet]

Ethernet at 1000 Mb/s (1 Gb/s). Can be over copper or fiber. There are different types of fiber.

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Gigabit uplink versus regular switch port

I have a 10/100/1000 24-port + 2 mini-GBIC ports switch which I have to link to other switches. Unfortunately, on the other switch all the mini-GBIC slots are taken up, so all I can do is link them together using a regular Ethernet port (which is…
heroes222
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GigaBit Ethernet Bandwidth send & receive

For a duplex 1 GigBit NIC, [134,217,728 Mbytes], does this mean it can receive AND send both at 134MNBytes per second, which is 268 MByte total capacity; Or Send and Receive share the 134 Mbytes, so each can have about 67 MByes per second?
Dave
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How to achieve 2-gigabit total throughput on Linux using the bonding driver?

For this application I am less concerned with high availability than I am with total throughput. I have one IP address on the server end, and I want to be able to send more than 1-gigabit of traffic out from the server. The server has two 1-gigabit…
nobodyfamous
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Will 100 Mbps client slow down 1000 Mbps network?

Newbie question: We are planning to setup a LAN in our lab, and are looking at gigabit ethernet switches. A couple of our older computers have 100 Mbps ethernet, will they slow down the whole network when all other devices are 1000 Mbps? If so, what…
hpy
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So what really makes a server grade NIC?

We have a couple servers hosting Citrix VM's. We are planning on adding SAN storage to our network so that we can do the quick migration and high availability thing. The question comes up with deciding what NICs to buy for the servers. We have scads…
Detritus Maximus
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Windows 2008 Server on mixed ethernet speeds — download from share slow, but fast plain TCP

I have a Windows Server 2008 R2 x64 server that is AD controller and file server. I have a problem that Windows XP clients experience terribly slow (less than 10Mbps, really less than ten-megabits-per-second) downloading of files from a…
Tometzky
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Gigabit capacity

Do gigabit ports have a total throughput of 1 gigabit so that you could be sending 800 mbit and receiving 200 mbit at the same time. Or is it 1000 in and 1000 out?
AdamB
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ZFS and FreeNAS Performance

I have just set up an HP Micro Server N40L as a FreeNAS with 4 2tb drives in a RAIDZ. I am getting around 30-40MB/sec, with occasional bursts of 50MB/sec., reads and writes that are similar to the low end of that range. As far as I can tell the CPU…
Timothy R. Butler
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Why does 1GBit card have output limited to 80 MiB?

I'm trying to utilize maximal bandwidth provided by my 1GiB network card, but it's always limited to 80MiB (real megabytes). What can be the reason? Card description (lshw output): description: Ethernet interface product: DGE-530T Gigabit…
ctinnist
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TIA 568A vs. B Wiring for Long Ethernet Run

I have a long Ethernet run (about 280 ft/85 m) that goes through a conduit between two buildings. On each end, I have an APC Ethernet surge protector that is grounded to the main ground for each building. While I had some trouble getting it to work…
Timothy R. Butler
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1000 Mbit/s fiber switch to 100 Mbit/s fiber switch - no communication

This morning, I troubleshooted a fiber connection between two switches in the same building. It was a single-mode fiber. I knew this fiber was fine, because I had installed it myself and tested (with my OTDR) after installation. My customer was…
renosis
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Slow network transfer on gigabit between Win7 and Ubuntu Samba (26 MB/s)

I have slow network transfer speed (26 MB/s). The beginning of the transfer started at 120 MB/s and dropped down every second. I am transferring a 350 GB file from an E-Sata (7200rpm) drive mounted on Windows 7 to a Ubuntu Samba share (on esxi).…
coderego
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Source for 1Gbit Ethernet hub

I know I'm really reaching here, but does anyone know any source for a 1Gbit Ethernet hub? Not a router, not a switch, but a hub. I've been told by the Powers That Be that they shalt not allow any more switches on their network, any tie-ins must…
Cat
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Does Gigabit degrade all ports to 100 megabit if there is a 100 megabit device attached?

Our company is buying some HP Procurve managed gigabit switches to replace some of our core switches. However, we aren't able to upgrade all of our switches from 100Mb to Gigabit switches. I think I know the answer but I'm not exactly sure. If we…
goodman
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Bonding dual 1 Gbit/s NICs to boost throughput to single 2.5Gbit/s port

Linux is capable of bonding NICs together. The interesting policy for this is Round-robin, which alternates outgoing packets between each NIC. However the performance benefits are usually limited to multiple clients. A single 1000BASE-T client,…
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