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

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Linux bonding (balance-tlb), KVM guests and L2 switches = unicast flooding?

I have a unicast flooding problem on my network, that started when I moved some software to virtualized guests. It seems very similar to what reported here: Switch flooding when bonding interfaces in ...
0
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2answers
72 views

Dual interface PC with one IP address

I would like to set up a machine with 2 network interfaces in the following setup: LAN1 <---> PC <---> LAN2 The tricky part is that the PC should be accessible from both LAN1 and LAN2 with the ...
0
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0answers
41 views

How to create an iptables rule for a specific bonded network interface?

I have a "bare metal" server with a popular cloud hosting provider. (Running Ubuntu 14 in case that's important.) This machine has a network interface that faces the public internet, and also ...
3
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2answers
608 views

802.3ad bonding configuration file on an Ubuntu 16.04 LTS Server

If I use a manual setup on the command line (following the kernel instructions), I can properly setup my network connection: # modprobe bonding mode=4 miimon=100 # ifconfig bond0 up # ip link set ...
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1answer
29 views

Does a Bonded NIC need more than one internet connection to be effective?

As I understand it, a "Bonded NIC" has two purposes: Redundancy in the event of a NIC failure Additional bandwidth The former would only protect against an internet connection failure in the event ...
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1answer
55 views

Load balance two ADSL connections Centos 7

I have centos 7 server working as a gateway for my network with three LAN cards and two internet connections from different ISPs , i want to combine the two connections and balance the network load ...
2
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0answers
44 views

Block incoming traffic in bonding mode when primary interface is down

My server running on latest kernel (4.4.6) has configured a bond device (bond0) with two enslaved interfaces eth0, wlan0 with primary interface eth0. cat /proc/net/bonding/bond0 Ethernet Channel ...
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0answers
29 views

Windows network teaming failover email notification

I'm wondering if it's possible to configure Windows Server network adapter teaming to send alert email to administrators in case of failover. Does this function exists builtin ? Or do we need any ...
0
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2answers
163 views

ubuntu 14: how to configure bridge for bonded interface?

We have a server connected to 2 switches via two NICs. On each NIC are 2 VLANs, management and production. Right now we only have one switch connected, so haven't setup the spanning tree etc. We ...
3
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0answers
87 views

Ubuntu 12.04 - Issue with routing between ethernet and bond/bridge

I have a device which has 3 Ethernet devices and one WiFi-device on board. I'm using eth0 for an internal network (192.168.1.0/24) and eth1, eth2 and wlan0 to connect to an external network (192.168.0....
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66 views

Ubuntu LACP bond; interface up but not responding to ping requests

note: If I'm using wrong terms anywhere please let me know. Today seemed a good day to configure that LACP to combine 4x Gbe into a single pipe so bandwidths > 1 Gbit could be achieved when needed. ...
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0answers
47 views

Bonding mode 6 after boot not balance incoming traffic

I use network link aggregation in mode 6 (alb+tlb), and when my program autostarts via xdg-autostart (desktop file,gui application), incoming traffic (4gb/s) does not seems to be distribute via ...
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0answers
366 views

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 ...
0
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1answer
39 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. ...
4
votes
1answer
78 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 ...
1
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1answer
32 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 ...
0
votes
1answer
260 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 ...
0
votes
1answer
47 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 ...
1
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1answer
262 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 /etc/...
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2answers
35 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 ...
0
votes
1answer
201 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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votes
1answer
44 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 ...
0
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1answer
19 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 ...
2
votes
1answer
636 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 ...
1
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1answer
205 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
102 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 ...
0
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0answers
94 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 ...
1
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1answer
39 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 ...
-1
votes
1answer
414 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.
1
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1answer
124 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 ...
0
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1answer
39 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 ...
0
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1answer
26 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 ...
1
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1answer
177 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 ...
2
votes
1answer
203 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 ...
2
votes
1answer
160 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 ...
0
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2answers
150 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 #...
6
votes
1answer
371 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 ...
2
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2answers
1k 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 ...
0
votes
1answer
96 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 ...
3
votes
1answer
84 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!
1
vote
1answer
1k 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 /etc/network/...
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2answers
131 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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0answers
1k 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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0answers
102 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
188 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 ...
2
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0answers
172 views

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 +----...
3
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2answers
3k 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 ...
0
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1answer
217 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, ...
0
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1answer
281 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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0answers
170 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 ...