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Questions tagged [ethernet]

Ethernet is the most common set of standards for wired connections in local area networks.

Ethernet is the most common set of standards for wired connections in local area networks.

Originally designed in the 1970s, Ethernet had a data rate of 10 megabits per second. Later, Ethernet was extended to support rates of 100 megabits/second, 1 gigabit/second, 10 gigabits/second and 100 gigabits/second.

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interrupt coalescing for high bandwidth packet capture?

I have an application which does packet capture from an ethernet card. Once in a while we see packets dropped (we suspect due to the buffer in the network card or kernel being overrun). I am trying to figure out if turning on interrupt coalescing…
Andy F
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Cisco IOS VLAN settings for Dell iDrac with shared interface

We have a few Dell servers with iDrac express, and we would like to start using the iDrac features. Our network is separated into a few VLANs for our different subnets. Our management subnet is on VLAN 28, and our data subnet is on VLAN 29. I have…
Jeff Strunk
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Will all ARP Replies update the ARP Table?

If a computer receives an ARP Reply frame not intended for it, will it update its ARP Table? Example: A, B and C are connected physically and locally. A broadcasts ARP Request to ask for B's MAC then B replies. Will computer C, upon receiving the…
IcySnow
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what is wrong with out of order packets?

when i set up adapter teaming on an HP server, one of the options i'd like to enable is round-robin for transmit load balancing because i need the full teamed throughput to a single host. (this is a live migration network for hyper-v.) when i pick…
longneck
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Increase data transfer speed through bonding/lacp?

I want to maximize the throughput of a data transfer between two servers. The copy will be made at the application layer using Robocopy. To clear things up, please check my Visio schema of the network: FS1---------(SW1)===========(SW2)---------…
Delta
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Linux server equivalent of Cisco Discovery Protocol (CDP)?

I am wondering if there are any Linux tools out there which might aid in identification of hosts directly connected to each other (much like Cisco Discovery Protocol on switches)? I have found http://sourceforge.net/projects/lcdpd/ which searching.…
Andy Shinn
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What could cause two devices to refuse to link?

This is a curious case where all the devices at hand will link with one another, except for two that just won't detect one another. One device is a single board computer (SBC) with a gigabit nic, the other is a fancy managed gigabit switch. If I…
JustJeff
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Programatically extracting interface configuration from the system?

I would like to produce a list of all the interfaces available on a [Linux] system, and for each interface, produce a list of available IP addresses. I was hoping to do this in a more graceful fashion than parsing the output of the ip command while…
larsks
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Is there a device or piece of software that can act as a transparent Ethernet bridge and limit bandwidth on MAC by MAC basis?

So for example, it will only let a particular MAC address on side A use 100kbps in ether direction.
Corey
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Ethernet Device Name in OpenSolaris

In Linux, I usually refer Ethernet devices as ethN. What is OpenSolaris standard naming for Ethernet devices?
Arie K
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Machine cannot communicate on local network any more

I have a machine that has a problem I've never seen and cannot understand. The machine is a Dell laptop with Windows 7 Ultimate. The user tried to do something fancy with this machine (bridging the WLan interface with the Ethernet one in order to…
Stephane
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Unknown LAN textbook title

I am preparing for my computer networks exam and I stumbled upon this textbook excerpt. I cannot find this book in google, I don't know the author or the title. Do any of you recognize this book?
ostrzysz
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Original Corinex powerline ethernet wall mount

I am re-purposing some old Corinex powerline ethernet wall mounts. They came with a setup cd with a wizard application for setting up the hardware, but the application doesn't seem to work on 64bit windows 7 (not surprised really - the plugs are…
michael
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Port Mirror and 802.1Q

Does a port mirror send ethernet frames out of the switch-port with the 802.1Q header bytes still on the frame?
Matt
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Really poor performance with 10Gbit Ethernet on custom app

I recently had a couple of 10Gbit Ethernet cards installed on a few machines connected to a LAN of about 80 commodity nodes running a distributed file system (Lustre). The 10Gbit card achieves good performance on file operations and is functioning…
Charles Salvia
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