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Questions tagged [bonding]

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

Cisco terminiolgy is "etherchannel", other vendors may talk about "trunking".

The idea is to use several pyhsical lines in the same (sub)network or VLAN and load-balance the traffic across these lines.

To make it work both "ends" need to use the same LB-mode.

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Am I understanding right about linux bonding and switch?

If there are one server and one switch, if the switch dies, service on the server down. So there are normally two switches, and the server should be connected to the two switches, therefore there should be two NICs on the server. But even if the…
Sato
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Do you trust LACP?

Are there any reasons why I should not rely on LACP when designing network topology? I exactly mean L2 switch to hypervisor connection, so it is the place where agregated traffic of VMs cumulates. We are talking about 5 x 1 GbE LACP bonding. I am in…
Andy Coarse
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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 eno1 master bond0 # ip link set eno2 master…
To마SE
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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 Bonding Driver: v3.7.1 (April 27, 2011) Bonding…
techfreakj
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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 failure? Given server A which has active TCP…
adtgdc
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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 address ranges 192.168.X.Y/22 so that the d/b…
Mark Fisher
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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 we must make a bridge over bonding. Put on the…
abg
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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 physical disconnect both ports, the status of…
Martin Markert
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What Linux Bonding Mode Is Appropriate For ATA Over Ethernet?

I'm using AoE (ATA Over Ethernet) on a Linux NAS with bonded gigabit nics. I'm curious as to which bonding mode is most appropriate for use with AoE? (balance-rr, balance-xor, 802.3, etc) I'm using good procurve switches, I have tweaked sysctl so…
Tim Post
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What is the correct way to setup a bonded bridge on Centos 6 for KVM guests?

What is the correct way to setup a bonded bridge on Centos 6 for KVM guests? I'd currently playing around with a setup of two KVM-hosts which will each host several guests. I have two HP DL380:s with 4 nics each. I'd like to use two nics (eth0,…
Arlukin
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NIC bonding with two uplinks

Is bonding the preferred way of implementing ISP redundancy? In the texts I've seen, bond device has a netmask, gateway of it's own. How can this be obtained if there are two different gateways from two uplinks, which one to choose? Do I need any…
Karolis T.
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Can multiple ip addreses be attached to a single network bonding device?

I am setting up an Ubuntu server for several hosting tasks that has 2 network cards and I have 5 ip addresses reserved for this server. From the bonding documentation I understand that it can easily be used both as a fault tolerance and load…
edgars
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vSphere NIC Teaming - Any reason for Active/Standby?

We're using ESXi and I'm wondering about the "NIC Teaming" options for our vSwitches. On a particular vSwitch with 2 NICs, is there any GOOD reason for configuring a NIC as Active and the other as Standby?. I always use Active/Active scenarios…
Craconia
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NIC Active/Passive bonding with priority

I will configure a bond of three NIC's. I want to define which one will be first used and which NIC will be used as the second and third NIC when failover is done. Is this possible? Thanks
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Is there a better way to do bonded vlan tagged interfaces with XEN

We have a number of XEN servers all running CentOS or RHEL. The VM's that they run are all required to be on their own VLAN for no other reason than the customer expects them to be. Long story short however, I can't change this right now. We are…
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