"bonding" is the Linux-term for link aggregation.

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bond interface without link on boot

After a server reboot, bond0 has not been started since one of its slave ethernets (eth2) had no link, I had to manually set it with: ip link set dev eth2 up Server has one bond to the LAN (with ...
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30 views

Linux 802.3AD port bond only shows one port

I have an Ubuntu server (13.10) machine with multiple NICs I'd like to bond together. Here is the network configuration on the server: auto eth2 iface eth2 inet manual bond-master bond0 auto eth3 ...
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79 views

How do I properly test NIC teaming in Windows Server 2012 R2

I'm trying out NIC teaming in Windows Server 2012 R2 and I am not getting the testing results I expect. My setup is a PCI-X 64-bit 133 MHz Intel Pro 1000/GT Quad on one server, and four individual ...
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62 views

Bonding more than 2 nics causes connection drops

I'm running CentOS 6.5. I have 3 servers with quad 1Gb nics. I'm using bonding mode 6 (tried 0 as well) running through a cisco 4948 switch. When only two network cables are attached, no issues. If ...
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207 views

Can bonding 2 interfaces double the speed?

I have 2 linux boxes running centos 6.5 each with 2 interfaces bonded together, linked to a Cisco 2960-S switch with lacp configured ports. The configuration on the switch port-channel load-balance ...
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102 views

FreeBSD 10.0-RELEASE: No lagg0 after reboot

I have a server running Freebsd 10.0-RELEASE. I'm trying to create bridge interface with three participant interfaces, ix0, ix1 and lagg0. Lagg0 is virtual interface made from ix2 and ix3. My problem ...
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2answers
350 views

Link aggregation (LACP/802.3ad) max throughput

I'm seeing some confusing behaviour regarding bonded interfaces under Linux and I'd like to throw the situation out there in hopes that someone can clear it up for me. I have two servers: Server 1 ...
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37 views

networking - Dedicated NIC for different traffic

I have two servers which acts as a reverse proxy which accept incoming requests from internet and passes on to application servers, then responses from the application servers are then served to the ...
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1answer
189 views

How to configure the bridge over bonding in RHEL 6.4 Server?

Has installed a system (rhel-server-6.4-x86_64-dvd.iso). KVM over which set. The host machine and the guest-machine assigned its own IP-address, configured for this bridge br0. Everything works. Now ...
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2answers
128 views

Ubuntu 12.04 - Aliases of bonded interfaces not working correctly

I have the following /etc/network/interfaces # The loopback network interface auto lo iface lo inet loopback auto eth0 iface eth0 inet manual bond-master bond0 bond-primary eth0 auto eth1 ...
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424 views

Xen 6.2 - NIC bonding - LACP or active/active?

I have 3 XenServer 6.2 machines with 4x 1Gb NICs. Would I be better served by: putting these in an LACP bond at the switch putting these in an active/active at the xen server leaving them separated? ...
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131 views

Link Aggregation & Windows Servers

So... We have a few servers that we would like load balanced link aggregation between multiple network interfaces. In the past we have used broadcom basp teaming using LACP. Today we encountered THIS ...
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2answers
352 views

Linux: Using bonding to connect two servers for faster file transfer

My setup is two Dell R720 servers which are connected over 4 gigbit ports each to a Cisco WS-C2960S-24TS-L switch which in turn is connected to the Internet via 100MBit. The servers are running ...
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244 views

NIC Bonding/balance-rr with Dell PowerConnect 5324

I'm trying to get NIC bonding to work with balance-rr so that three NIC ports are combined, so that instead of getting 1 Gbps we get 3 Gbps. We are doing this on two servers connected to the same ...
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131 views

Ksoftirqd high load

Recently I notice that one ksoftirqd is always in top of my processlist and takes 90% - 100% cpu. PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND ...
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3answers
108 views

Can I balance load between 4 ADSL links

I recently began to work in this organization, we have 4 ADSL separated links, so the people connect to the nearest WiFi, resulting in usage inequality. I was about to change the links to a fiber ...
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1answer
627 views

LACP with 2 NICs working when either one is down, not when both are up

I'm running into problems with getting a LACP trunk to operate properly on Ubuntu 12.04.2 LTS. My setup is a single host connected with two 10 Gbe interfaces to two seperate Nexus 5548 switches, with ...
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68 views

How to bond NIC on a virtual machine?

I'm puzzled about this process. Historically when I've setup an LACP bond on a piece of physical hardware I have to create the analogous setup on the switch. How does this work with a virtual machine ...
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82 views

bonding of bond interface in ubuntu 13.04

Is it possible to bonding of bond interface? I have two NIC bonded as bond0 (balance mode) and two other NIC bonded as bond1 (balance mode). I want to create bond2 (active back-up mode) by using ...
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42 views

Are balance-xor and 802.3ad modes of Bonding meant to provide per-flow balancing?

The title says it all :) Well we have 2 links, one is 1MB (CIR/ dedicated), the other is 12MB (shared). 12MB one is not at all reliable too.. So what I want is to not lose my packets into the ...
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1answer
50 views

Write operation is happening from 1 Gigabit port instead of 10 Gigabit port in NetGear switch and its random [closed]

We have a Synology system which is connected with NetGear switch. We passed 2, 10 gigabit cables from synology to switch. We connected HP server with switch with 2, 10 gigabit port. We connected one ...
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246 views

Fibre Channel Link Aggregation

quick question. Is there a Port-Channel/EtherChannel Link Aggregation equivalent for Fibre Channel? Is it possible to aggregate FC Links for High Availability? For instance if I have two Fabrics and I ...
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115 views

Solaris 10: IPMP setup with zone and defrouter

I'm a bit desesparated by some kind of "bugs" we recently faced. We are using Solaris 10 on SPARC platform (T4-4) to run zones. Obviously, we do IPMP for safety. Some of those zones are legacy, so ...
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1answer
165 views

server bonding interface configuration

(the same question was asked on http://unix.stackexchange.com) We are facing some problem with configuration of servers: There are 2 servers, each one contain 2 NICs which are in bond. Each server is ...
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173 views

Choosing bonding mode between RHEL server and two separate switches

I have one RHEL 6 server with two NIC ports (each Port is connected to different switch). I need to create bonded interface from those two physical ports. Which bonding mode should I use? I don't ...
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308 views

Broadcom Advanced Control Suite 4 on a PowerConnect 2848 making router (ASA5505) throw ARP errors when TEAMING (different MAC addresses from same IP)

For some reason the Broadcom Advanced Control Suite 4 seems to be a little buggy OR I have not configured something correctly. I have 4 Gb NICs and I team 3 of them to make a virtual adaptor... ...
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157 views

How to 'bridge' the newly bonded NIC?

I bonded eth0, eth1, eth2 and eth3 of my server to create a single bond0 interface using the ifenslave package. Now I wish to create multiple Virtual machines on this server in order to set-up a ...
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2answers
320 views

Stacking and LAGing 4x PowerConnect 8024F's

We are constructing a new networking infrastructure to replace out 1GbE backbone and have decided upon using 4x Dell PowerConnect 8024F's as our "core" switches. As per the diagram below we have 2x ...
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2k views

Linux Centos6 adapter bonding - Cisco 2960S EtherChannel LACP

I want to connect a CentOS 6.4 Linux Box with two NICs to a Cisco 2960S using LACP 802.3ad port aggregation. This mainly for redundancy reasons (and hopefully more bandwith). We don't use VLAN ...
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3k views

RHEL 6.4: Mode 1 channel bonding not failing over

I'm running RHEL 6.4, kernel-2.6.32-358.el6.i686, on an HP ML 350 G5 with two onboard Broadcom NetXtreme II BCM5708 1000Base-T NICs. My goal is to channel bond the two interfaces into a mode=1 ...
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191 views

How to achieve gigabit speeds with Ubuntu using bonding?

I'm working with the bonding driver on Linux (Ubuntu 12.04.2 LTS). I have 2 PCs with 2 NICs (gigabit ethernet - Intel 82574L) in each one (in total, 4 NICs). I want to improve my TCP throughput over ...
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146 views

NIC teaming and vlan support in linux

Doeas anyone has idea about vlan support in linux with NIC teaming/bonding.In case of a switch I am not able to communicate however if I remove multiple vlan interfaces from NIC , I am able to ...
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105 views

bonding - balance-tlb and a mysterious ethernet packet with lots of 00:00:00

Whilst attempting to get bonding working with mode=5 (balance-tlb) it seems that the driver sends an ethernet packet with length 0x0060 and the data, payload is all zeros. I can't work out where this ...
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446 views

Poor Bonding performance over 2 bonded vpn channels

I have two Linux machines that I wish to connect via a bonded link. One machine has two UMTS modems (DN:5mbit UL:1.2mbit) as its gateways, and the other machine has optical fiber (DL:100Mbit UL: ...
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91 views

Layer 2 Load-Balancing on redundant Architecture

Some PCs with 2 NICs are bound on 2 Switches in order to avoid a Single-Point-of-Failure (the switches are interconnected to each other too). Under which cirumstances is it possible that the PCs can ...
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1answer
144 views

Bond0 Failover when link light stays up: High Availability Network

Configuration: Two switches, each with a separate internet route Centos servers with eth0 and eth1 bonded as an active-backup on bond0, eth0 in on switch and eth1 in the other /etc/modprobe.conf ...
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38 views

nortels switch and bonding interfaces (ifenslave)

I have an host with 2 NIC connected to two switches(nortels) and these switches are connected to the same nortel 5530 with 2 different MLT (Nortel proprietary trunking protocol). I want to perform ...
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581 views

Bonding linux - How to select mac address using mode 2 (balance-xor)

A few days ago, I wrote a question here, but that question was ambiguous. So, I will try rewrite the question, explaining all details. My previous message (closed message): http://goo.gl/aJqQ2 What ...
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1answer
262 views

Broadcom NetXtreme II GigE Teaming Does Not Use Unique MAC, Causing Collisions

I currently have a new Dell server on my local (inside) network that I have setup to use three of the four nics to create a team. Examples below. NIC_1 - mac: 000000000001 - ip: n/a NIC_2 - mac: ...
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67 views

Aggregate switch ports to go through different iptables servers acting as firewalls?

Scenario: One internet connection with the need to firewall a very high number of pps, without having to invest in expensive hardware firewalls. I do not have a specific number of pps to aim after, ...
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1answer
76 views

802.3ad over Multiple Bridged APs?

I have a client who wants to find a cheap way to get a gigabit link (or so) between two buildings that are within stable wireless range of each other. And he asked me if I knew of a way to do it. I ...
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346 views

Two Bonded Gigabyte NICs are limited to 100Mb

I have two bonded Gigabyte NICs on a CentOS 6 server, the ethtool shows the speed is 1000Mb/s, but when I do the speed test from a PC to this server on the same subnet, the transfer speed is less than ...
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1answer
790 views

NIC Bonding works but can't ping

I have bonded two NICs(Intel I-350) on CentOS 6.4. The configuration looks fine, but I am not able to ping any host and switch in its subnet. ===Bond0 status=== cat /proc/net/bonding/bond0 Ethernet ...
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How to identify NICs that are connected to the same switch from a Linux box?

Initial Setup As a Linux administrator you have installed a fresh Linux box with 6 NICs eth0 to eth5. The eth0 interface is correctly configured and all other interfaces are currently up but without ...
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186 views

Firewall: Can I use WAN load balancing to emulate link aggregation?

I have a Sonicwall NSA 3500 I'm configuring. It supports 1.5 Gbit of state-full traffic, but a single WAN port only supports 1 Gbit of traffic. The NSA series firewalls don't support link ...
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83 views

Bonding - 2 Devices failed

i have a Linux Server - Setup with Proxmox 2.3 (ISO-Installer). I tried to update the Installation and so i got a Problem because I have to Links and must configure a bond. I have the Information ...
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Bonding not working properly (CentOS 5.4, Intel 10G, 802.3ad)

We've configured network bonding using a Intel Network Adapter X540 with two ports. Both ports are connected to a Brocade switch with a configured LACP trunk. Everthing seems to work fine; but when we ...
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303 views

Linux NIC bonding failure; strange CPU load

Note: An update as been added below I'm having a very strange issue with a Linux server (Debian 6.0.6) using 802.3ad NIC bonding. Occasionally all of the NICs in the bond get marked as down and the ...
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1answer
205 views

Ethernet Adapter Bonding on Ubuntu 10.04 Issues

I have a few machines using which I am building a cluster. To improve performance we choose to use bonding on the Ethernet interfaces ( Each link is 1Gig). I have installed the ifenslave-2.6 module ...
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2answers
703 views

Setting up Hyper-V Server 2012 with active/active failover

I want to set up Hyper-V server according to the following: I want the Hyper-V server to, if both interfaces are up, to use the NIC connected to Switch A for storage traffic, and the NIC connected ...