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

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OpenVSwitch LACP bonding test setup problems

I want to test LACP bonding on ovs. I have 3 Ubuntu computer. Using 2 of them as a openvswitch and one of them as a host. The first ubuntu (call it switch1) has three NIC (2 of them usb/eth ...
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32 views

How do I setup bonding on Centos 6.x for High Availability? [closed]

My server has two Ethernet ports. With Bonding I setup two different IP addresses for both. The hardware is not very new, so I wouldn't expect that the newest versions of these features to work. ...
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43 views

What happens to active TCP sessions when the active slave fails in a Linux bond (failove or LACP)?

Given an active-backup (mode 3) or 802.3ad (mode 4) type bond, when the active slave fails, is there any seamless failover for those TCP/IP connections that were active prior to and at the time of the ...
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1answer
20 views

Is there limit to create ling-aggregation on FreeBSD 10 by default?

I'm new using FreeBSD and one of the things that we need is two link aggregation interfaces. Looking for on Internet I found out that we can put the configuration on /etc/rc.conf. I tried to config my ...
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1answer
53 views

Windows Server 2012 NIC Teaming vs. MPIO [duplicate]

I've got a server with Windows Server 2012 R2 installed on it. 1 NIC on the server is used for management purposes and I've teamed the 3 other NICs which communicate with our SAN to carry out VM ...
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1answer
28 views

Debian / KVM bonding and bridging NICs

I have a physical server with 4 NICs running Debian 8. I want to install KVM and configure guest vm's. One of the guest vm's will run the controller software to manage my network devices (ie managed ...
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1answer
73 views

Configure bond using mode=4 (802.3ad)

I have a Debian 8 system with two NICs I want to bond. My managed switch is already configured to link aggregate the two ports I'm using. On the linux box, I have installed ifenslave. In ...
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2answers
30 views

Debian KVM network setup

I have a server with 4 ethernet ports. I want to use two ports for link aggregation to be used for KVM (virtual guests). How can I go about setting this up properly? Create the link agg first then ...
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1answer
27 views

Does balance-alb and balance-tlb support fault-tolerance?

I've read bonding.txt file of kernel documentation, it's clear about load balance, but are balance-alb and balance-tlb really fault tolerant?
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1answer
36 views

KVM/libvirt: Guest monopolizes bridge

I'm having a problem in which the first guest started on a VM host can send traffic through both of its assigned interfaces, but subsequent guests can only send traffic through one interface. My VM ...
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1answer
14 views

Win 2012 - Create new NIC team only shows me virtual NICs, not the physical NICs, why?

I am setting up a new win2012 server with NIC teaming. The server has two physical NICs and I want to create one NIC team in the management OS that uses both NICs. My problem is that when I installed ...
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265 views

Machine with bonded interface does not receive multicast packets on all slave interfaces

After an upgrade of our machines from RHEL 6.6 to RHEL 6.7 we observed a problem where 4 of our 30 machines only receive multicast traffic on one of their two slave interfaces. It is unclear if the ...
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1answer
86 views

RHEL 7.1 iscsid fails to get target as networking doesn't seem to have started

I have 2 RHEL 7.1 VMWare vm's (server and client) connected on a private vmware network. They each have 2xe1000 nics using teaming. I can see the teaming works as expected. I've also configured ...
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2answers
79 views

Best practice for using multiple links between switches when link aggregation is not supported?

I have a half-dozen servers and workstations in an office. The systems are connected to a Cisco SG200 gigabit switch in the room. The room has two gigabit wall-port ethernet outlets. I have the switch ...
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76 views

Debian NIC Bonding slow write

I set up NIC bonding on my debian 8 machine as a test, and I ran into the following problem. Without bonding I get ~90MB/s write and ~100MB/s read. After I enabled bonding the write speed dropped to ...
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29 views

CentOS, 4 NICs: two teams redandant, each team has 2 NICs, is it possible?

We have one CentOS7 or RedHat 7 "BIG" HP Proliant DL360 Gen 9 server with 4 NICs, two external switches Switch 1 and Switch 2 and many "small" servers. Those small servers have two NICs: those NICs ...
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1answer
171 views

Intel NIC teaming or server 2012 R2?

I'd like to implement NIC teaming on one of my servers and would like to know if it's better to use the Intel NIC teaming from the drivers or to use the NIC teaming from Windows Server 2012 R2.
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1answer
78 views

Host using Linux bond mode 1 (active/backup) connected to 2 x independent switches

I have a host using Linux bond mode 1 (active/backup) connected to 2 x independent switches. Please can someone confirm if this is possible for successful failover between NICS or do I have to ...
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1answer
31 views

network link aggregation centos7 issue

I cannot ping/connect to "Team device IP". Below are steps I took to create link aggregation on Centos7.The slave ethernet are up and i can ping successfully before .what am i missting here? # nmcli ...
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1answer
24 views

Create a top Bond (ALB) on 2 lower Bond (LACP)

Is it possible to create a BOND over a BOND? or this will cause some networking issue? Why do I need this setup? I have 2 switch that support LACP but not distributed LACP! My Server has 4 ethernet ...
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1answer
78 views

What builds /proc/net/bonding?

We're monitoring the network interfaces with Nagios/check_mk, which looks at /proc/net/bonding/bond0 to see the status of the interfaces. Unfortunately, we had an improper config and 2 NICs were in ...
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1answer
146 views

Network link saturated. How to fix?

I have a backup server installed in rack A. That rack has a Cisco WS-C3560G-48TS-S switch installed. I also have 10 proxmox servers (=linux vm host) in rack B. That rack has a HP 2810-48 switch ...
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1answer
105 views

How are we supposed to use linux bonding mode balance-rr?

I'm trying to setup 10 servers with a quad port gigabit nic using the linux bonding driver in balance-rr mode. But how is this supposed to be done? I'm not buying 10Gbe hardware now because it's too ...
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2answers
111 views

Creating several kvm bridges over tagged bond

I have the following configuration in a RHEL6.5 which works great. # ifcfg-em1_2 DEVICE=em1_2 HWADDR=C8:1F:66:D8:77:D2 TYPE=Ethernet ONBOOT=yes NM_CONTROLLED=no MASTER=bond0 SLAVE=yes USERCTL=no ...
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1answer
297 views

4X10GB Bonded NIC - only producing 4-5GB throughput

I have Two HPBL685c G6 blade servers running Ubuntu 15.04 Each server has 4X10GB NIC 2x10GB NIC are connected to a single VirtualConnect 10/10G Ethernet module The other 2x10GB NIC are connected to ...
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795 views

Kickstart fails to set up multiple bonded interfaces

I’m having some trouble setting up bonded interfaces in a CentOS 6.5 kickstart script. I have 8 physical network interfaces, which want to be configured in pairs as 4 bonded network interfaces. My ...
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1answer
73 views

Network teaming Windows Server 2008 R2

I have two Windows Server 2008 R2 servers that need to share files on SAS attached logical drives over a 10G network connection. The servers have two 10G ports so I'm wondering if I can use both of ...
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54 views

Bond on top of VLANs or VLANs on Top of Bond

Both ways seem possible. What is the better approach within Linux? Better means more efficient assuming my switch doesn't know about LACP+Tagging. Thanks!
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1answer
621 views

Unable to set a bridge over bonding on Debian

I have a Debian 8 Jessie machine with two interfaces (eth0 and eth1) bonded in balance-rr mode (aka 0). It works smoothly, but when I try to set up a bridge on it, it doesn't work. My ...
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2answers
95 views

Connect multiple times to the same wifi network [closed]

Is it possible to connect multiple times (with different MAC addresses) to the same wifi network with just one network card? Is there already a tool to do this?
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101 views

IPsec, PepVPN, SpeedFusion Hot Failover and SpeedFusion Bonding (PepLink Load balancer)

I was looking for the difference between IPsec, PepVPN, SpeedFusion Hot Failover and SpeedFusion Bonding (PepLink Load balancer) but i can't find something well explained. I'll be glad if someone can ...
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950 views

Bridge on vlan on teaming for KVM

I have problem to create bridge on vlan on teaming. Why I do something like that? - Kvm needs bridge - Vlans because I need vm’s in different subnets - Teaming in option active-backup (small HA) I do ...
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98 views

Can iSCSI and Internet work on same NIC? [closed]

I have a Synology RS815+ that supports iSCSI with 4 GbE ports. I have two Mac Mini's (2014) with built-in GbE and a TB to GbE adapter. All 8 connections are tied to the same switch, with client ...
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1answer
127 views

How does NIC bonding in Linux work? [closed]

Entry in Wikipedia about NIC-bonding (active-backup): Active-backup (active-backup) Only one NIC slave in the bond is active. A different slave becomes active if, and only if, the active ...
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142 views

XenServer: run management and data over same LACP bond

I have a XenServer (open source version 6.5) machine with 6 available ethernet interfaces. Is there a way to create one single LACP bond with all interfaces and then run the management network as ...
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Debian does not shut down interface with ip link set … down

I have a really specific question for a trunk-testing environment. I have this network setup: +------------+ +------------+ | | +-----+ | | | eth0 ...
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63 views

LACP between Foundry Fastiron and HP Procurve

I have a rack full of Procurves and need a new switch. Before jumping the gun I had a look at Foundry. I've never used a Foundry product and I have always thought of them as being high-end. There ...
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2answers
2k views

Ubuntu Linux, Bonding, and VLANS - Can I configure all interfaces to be tagged? IE: Bring up BOND0 interface without an IP Address

I have a server with multiple adapters in a bond, bond0. I am not sure (even after extensive research) how to bring up the bond0 device without an IP address. I want the VLANs to use bond0, but not ...
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166 views

KVM Aggregate Throughput Limited at 1Gb - Virtio Queues Limiting Factor?

I have a KVM host with three NICs and can't get traffic between guests (in same subnet) above 1gbps aggregate. Is this by design and the only way to achieve >1gbps to use multiqueue support? So far, ...
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1answer
245 views

Teaming two NIC: iperf shows 200MB/s downloads but only 100MB/s upload

I have: One client with two 1000Mbps NICs, teamed using round-robin method One master with a 10Gbps NIC They are connected with a Huawei 10G switch (S5700). Then I ran iperf -s on master and ...
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143 views

Dell PowerConnect Link Aggregation Failover Failed

We are a small office with two Dell PowerConnect 5548 switches that, together, cover all of our servers and hosts. I had them connected using ports 47 and 48, which I placed in a LAG. Port 47 was ...
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1answer
738 views

Bonding Centos 6.6 NICs to double bandwidth

I am configuring a hadoop cluster to prepare for our vendor to install its hadoop manager this week. The pre-installation checklist recommends that 1gb ethernet is not sufficient and that I should ...
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1answer
369 views

How do I bond eth0 to failover to wlan0 after WAN connection loss?

I would like to have my monitoring box (Zenoss) notify me when the network upstream of me goes down without an actual link loss. I have had some issues with our CoLo's switches going down, but I ...
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1answer
1k views

NIC bonding over bridged GRE-TAP: not getting replies… unless I run “tcpdump”?

I'm trying to get Linux bonding working over a VPN (GRE-TAP). The funny thing is, that it only works when I have tcpdump running on both hosts, but more on that later... There are two machines, ...
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1answer
371 views

Routing on Bonded VLANs

I've got a linux d/b server (OEL 6.4 but effectively Redhat 6 I believe) with bonded nics connecting to juniper switches. I've split the bond up into multiple vlans (bond0.11, ... bond0.18) with IP ...
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2answers
168 views

Multilayer LACP

I have a network switch that is limited to 2x1Gb/s LACP teaming, however have a file server with a 4x1Gb/s network interface. What options do I have to aggregate all available bandwidth without ...
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1answer
427 views

OEL 6.5 bonding mode=802.3ad no connection

OEL 6.5 bonding mode=802.3ad no connection I configured 2nic into bond on OEL 6.5. to cisco switch (lacp) ---------- | eth0 |=====+ +~~physical-link~~\ ---------- || --------- | ...
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1answer
695 views

High packet loss with kvm, bridge and bonding

I have 2 servers connected through cisco linksys sg500. Both hosts have identical configuration (Ubuntu 14.04 LTS, 4 * 1Gb/s network interfaces with bonding). When I set up bridge and interface ...
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163 views

Why do the Link States on my Force10 S50N LACP differ?

I was wondering if my Force10 LACP Setup is OK? Specifically, I'm looking for an explanation for the Link States, and why they differ, and wondering if the differing Link States indicates a ...
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551 views

link aggregation with wifi and ethernet on Linux

I have a computer running linux with a wifi and an ethernet interface. I'd like to set up link aggregation (at least fail-over, but other modes would be nice too) between these two so that both this ...