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Questions tagged [nic]

A Network Interface Card is a computer component which connects to a physical network in order to send and receive data.

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How do I prepare for swapping a NIC using network teaming on a Windows cluster host?

Update: I have now performed the upgrade. I used the half-ninja, half-hack solution of plugging in USB-to-Ethernet adapters that I could add to the teams to hold the fort. I plugged in one per team, removed the other affected adapters in the team,…
Jesper
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Win2012R2 NIC Teaming with LACP, but one nic has not traffic

I want have 2Gbps bandwidth (peer to peer) with 2 1Gbps NIC. It's on HP MicroServer Gen8, 2 on board NICs. I have bind 2 NIC teaming with LACP, dynamic load balance, but one interface has large traffic, other has not traffic. (NIC0 has traffic NIC1…
user219031
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Route Between Two Virtual Interfaces on one NIC Linux

I have an Ubuntu machine that is my firewall The Machine has 2 NIC Cards. eth0 and eth1. eth1 is connected to a modem that gives it an IP of 10.10.1.X eth1 is required to provide DHCP on 192.168.2.X and have another IP from a switch that is…
Hitesh Dharamdasani
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KVM NIC passthrough "device already in use"

I have a server with 2 NICs 01:00.0 Ethernet controller: Intel Corporation Ethernet Controller 10-Gigabit X540-AT2 (rev 01) 01:00.1 Ethernet controller: Intel Corporation Ethernet Controller 10-Gigabit X540-AT2 (rev 01) and i want to assign…
Kaminek
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What are the advantages NAPI before the IRQ Coalesce?

As known there are two approach to avoid some overheads of hardware interrupts in highload networks, when there are too many hardware interrupts, that switching to them takes too much time. It is very important for performance and choosing approach…
Alex
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Supermicro NICs gone after BIOS update

Just updated the BIOS of two Supermicro 1022G-URFs to R3.5. They've both the mainboard H8DGU-F with two onboard Intel 82576 NICs. One of the two Supermicros doesn't have any visible NICs at all after this BIOS update. They are not even listed in the…
Bart van Kleef
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How do I increase the ring parameters for a NIC on a Linux server

I used the ethtool utility to increase the rx and tx values for the NIC on one of our servers. I ran the following command: ethtool -g eth0 Ring parameters for eth0: Pre-set maximums: RX: 2040 RX Mini: 0 RX Jumbo: 8160 TX: …
user3405780
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Forcing Remote Desktop to listen on an adapter on Server Core

I appear to have the problem described here: "After cloning and syspreping [...] VMs running Windows [...], I was not able to connect to the cloned servers by Remote Desktop. After troubleshooting the steps below, I noticed the the RDP-TCP listener…
Andrew J. Brehm
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What else does "netsh int ip reset" do?

According to this KB article when you run the "netsh int ip reset" command, all it does is to reset the content of two registry keys: SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\ SYSTEM\CurrentControlSet\Services\DHCP\Parameters\ but on my…
Chris
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Change all network cards to auto/auto on many machines

Because of a change in networking equipment I might need to set a bunch of machines NICs back to auto negotiate. What's the best way to automate this? I'm thinking an Autoit compiled exe pushed out through group policy or SCCM. Please post your…
MathewC
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How to configure 2 NICs with 2 different gateways?

I have a server with 3 NICs running RHEL6. eth0 is connected to the intranet. eth1 is connected to the Operations and Maintenance Network eth2 is connected to an automated backup network (doesnt need a default gateway) I defined my default gateway…
Rhyuk
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Two network cards latency

I'm trying to setup a network architecture where one network is a low-latency low-bandwidth tcp control system (GBit), the other is a high-bandwidth udp (maybe tcp) network that could get saturated (GBit). If I have two NICs inside a server running…
Ross W
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Cisco SG 300-28P PoE switch appears to have damaged my domain server's network IF

I just replaced the old HP ProCurve switch with a new Cisco SG 300-28P managed switch. It has PoE on all ports. Everything works, except for my domain server that went offline and the network interface appears to be dead. Windows says the network…
cdonner
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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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What are the steps to set up a Hyper-V solution with one NIC

I have successfully installed centos on a virtual machine via Hyper-V on Windows Server 2008 R2. This server has one NIC. I have created a virtual NIC, and virtual subnet, and within the virtual machine (via console) I can ping the gateway. But not…
Cameron Aziz
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