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

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NIC Teaming , Multi-Homed, Active/Passive

I'm fairly new to NIC Teaming.. So I apologize if I’m not making any sense while describing this. I’ve, of course, set up plenty of simple Active/Active NIC teams for our servers without any issues ...
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2answers
3k views

Fault Tolerance with 2 HP ProCurve 2824 Switches

Looking for some advice on our current situation. We have a full rack at a data center that contains 1 uplink to the data center distribution layer switch (we don't control this), 2 HP ProCurve 2824's ...
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2answers
615 views

bonding NICs w/o switch

(This may not be possible, but I thought I'd ask just in case it is, as it will save a considerable amount of cash.) I'm building cluster of sorts that has one shared storage unit and two computing ...
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2answers
487 views

Is it possible to boost my server's LAN bandwidth with two Ethernet ports?

Is it possible to boost my server's LAN bandwidth with two Ethernet ports? I have two Ethernet ports on my Dell PowerEdge SC1435 and I routed both eth0 and eth1 to my router, but for some reason I'm ...
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1answer
977 views

How do I keep a bridge enabled on a bonded interface?

I'm working on setting up a pair of CentOS 6.3 servers that will run a couple of KVM vms and have come across a problem setting up a bridge on a bond. I am using Mode 4 (802.3ad) bonding on a pair ...
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1answer
1k views

Network interface bonding, can the slave interfaces also be assigned ip addresses?

I currently have 2 gbit network interfaces bonded as bond0. Is it possible to also have the slave interfaces eth0 and eth1 assigned ip addresses and have traffic routed directly out either one like ...
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4answers
8k views

Link bonding across multiple switches?

I've read up a little bit on bonding nics with ifenslave; what I'm having trouble understanding is whether there is special configuration needed in order to split the bonds across two switches. For ...
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4answers
2k views

Multi-WAN bonding across different media

I've recently been thinking again about a product that Viprinet provide, basically they've got a pair of routers, one that lives in a datacentre, Their VPN Multichannel Hub and the on-site hardware, ...
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1answer
282 views

Ubuntu Only Utilizes One Link in 802.3ad

I am currently using an Intel PRO/1000 PT LP Quad Port Server NIC with Ubuntu 12.04 LTS Server 64 Bit. I installed Gnome so I have a GUI. I downloaded bmon 2.0.1 to monitor the network, and right now ...
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455 views

Intel PRO/1000 PT LP Jumbo Frames in Ubuntu 12.04 LTS

I am having issues getting jumbo frames enabled in Ubuntu using an Intel PRO/1000 PT LP NIC with two bonded 1Gb lines. Following the readme that comes with the Linux driver, Ubuntu will not allow me ...
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1answer
1k views

LACP Throughput Issues

I have been struggling with an LACP implementation for a while now, and the number of variables has really been getting overwhelming. Right now the setup I have is two hosts running 2008R2, each of ...
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2answers
2k views

Increase data transfer speed through bonding/lacp?

I want to maximize the throughput of a data transfer between two servers. The copy will be made at the application layer using Robocopy. To clear things up, please check my Visio schema of the ...
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3answers
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Linux bond mode 4 (802.3ad) - 2 switch - 4 NIC

I know that you can use bonding mode 4 with 1 servers with 2 nic using 2 switch. Bond 0 made of : Nic 1 port 1 -> switch A Nic 2 port 1 -> switch B In this case I can loose a switch or a nic or a ...
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4answers
13k views

Linux bonding: 802.3ad (LACP) vs. balance-alb mode

Here's the situation. I would like to connect my Linux servers to a single network using dual link for fault tolerance and load balancing reasons. The servers have 2 or more 1-gig NICs and I plan to ...
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1answer
3k views

Is bonding mode=5 a solution against MAC flapping?

There is two are interconnected Cisco WS-2950T. By the one GBIC port on first switch connected a first NIC of bonding interface, and by the one GBIC port on second switch connected a second NIC of ...
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2answers
2k views

Linux bonded Interfaces hanging periodically

I've several hosts that are showing problems with connectivity. When working from the command line, for example, typing is frozen for a second or so, then recovers - then it does it again. The most ...
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1answer
338 views

Team QLOGIC iSCSI HBA 4052c

We have a dual port QLogic iSCSI HBA (QLA-4052c) and we're trying to team the two ports to allow for 2GB throughput. The documentation seems really poor on Qlogic and we can't find any reference to ...
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1answer
156 views

Obtaining and routing small IPv4 space?

I had an idea for designing a network setup in order to acquire high availability connections to my (small) network, but I seem to be running into a few problems trying to find out the particulars. ...
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2answers
93 views

Delay after re-establishing a bonded link

I have a CentOS 6 server with two bonded ethernet ports. Both ports are connected to a switch which I then connect to a laptop. If I flood-ping the laptop and disconnect one of the bonded ports, some ...
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1answer
555 views

Redhat bonding with two switch

I have a server running RHEL6 with two NICs, each connect to separate switch. Two Cisco 3560 switches connected with a trunk link. The problem is the bonding link is not stable (lost some packets). ...
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3answers
649 views

Can we bond (with Manage Virtual Interfaces, or similar) across an USB Ethernet dongle and the Airport Wifi

We've got a Macbook Air (Actually, we've got some Airs, Some Pros and some iMacs). We've got a consistently annoying problem, which is that when they connect to our DHCP server, they've actually got ...
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1answer
374 views

Combine two NIC's into one preserving routing (DMZ server / Windows or Linux)

We have a DMZ server with two NIC's, one is accessed from the Internet (public IP) and one from behind the internal firewall (private IP). One application has problems to cope with a 2 IP's / 2 NIC's ...
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2answers
6k views

How do I put a bridge on top of a bonded interface?

I'm setting up a Ubuntu Server 11.10 box with multiple Ethernet interfaces that are bonded for redundancy. I'm planning to use it as a KVM host, so I'll need a network bridge. To accomplish this, I ...
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2answers
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Does linux balance-rr (bond mode=0) work with all switches?

I'm configuring two ethernet interfaces into an aggregation group to double bandwidth, and I was wondering if bond mode=0 works for all switches? What about dumb switches that don't support LACP? Will ...
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3answers
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Linux NIC bonding on top of vlan interfaces?

Is it possible to set up bonding(active/backup) on top of existing vlan interfaces ? Assume the following scenario: Linux Server with 2 NICs connected to separate switches iSCSI initiator + MPIO to ...
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2answers
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bonding driver broken on centos6?

I have a server with minimal installation of CentOS6 64bit (minimal option from the installer). The bonding driver does not seem to work correctly. The output from /proc/net/bonding/bond0 is: Bonding ...
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588 views

Teaming on Cisco Catalyst switch

Hopefully an easy one for someone... If I'm setting up either an MPIO or Team/bond on a Windows server, does a channel group need setting up on the Cisco Catalyst switches that they're connected to? ...
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2answers
11k views

HP Procurve 1800 Switch-to-Switch Trunks and LACP (and VLANs too!)

I am considering connecting two (and possibly three) HP Procurve 1800 switches together with trunks or with LACP. I can't find any substantial answer to my questions via Google or here. I did find ...
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2answers
302 views

WAN Link Balancing - Best Way To Approach

First some of the details. We are a SME (80 office users 30 remote) with 2, soon to be 3 WAN connections. Our WAN connections are a T1, Cable (25/5), and soon to be DSL (10,2). We are looking to to ...
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2answers
748 views

hostid command not returning consistent hostid on RHEL 5.6 server

We have two newly built RHEL 5.6 x86_64 servers which are part of an Oracle Database Cluster. One is named CMORAC1 and the other CMORAC2. The primary IP Addresses of both servers are 10.100.9.144 and ...
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2answers
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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 ...
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4answers
7k views

How do people monitor the status of bonding slave interfaces on linux?

I have set up two interfaces as bonding slaves (eth0 and eth1 bonded as bond0). How are people monitoring the status of the slaves? How are you notified if the link fails on one interface? Do you ...
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1answer
688 views

No Gigabit NIC card in Xen 3.0 CentOS 5.6

I have a CentOS 5.6 linux host running two Windows Server 2008 R2 VMs in Xen. The problem I'm having is the NIC card in any VM shows up as 100Mbps and not 1000Mbps. I would like to be able to give the ...
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1answer
971 views

Link Aggregation with ESXi 4.1

I am trying to setup Link Aggregation between a switch and an ESXi 4.1 host. When I perform all of the steps I think that I need, the switch shows the ports as being linked and that they have an ...
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1answer
520 views

Bonding Virtual Server with an Apache Proxy Gateway

I have two situations. Individually they work great, but together, the system will not resolve my websites. A general overview of my test environment: Proxmox VE server that has multiple VMs for ...
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2answers
571 views

Network traffic doesn't appear to leave the trunk

I'm in the process of staging up some new virtualization servers, and part of that is to get some higher-bandwidth pipes into them. The ultimate goal is to bind 4 GigE ports into a single trunk ...
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2answers
2k views

NIC bonding can't go above 1 Gbps

I have 4-ports Intel 82571EB Gigabit adapter. It uses e1000e driver. The test machine is running Ubuntu 9.10, clients 9.10/10.04. I tried link aggregation (mode 4) and adaptive load balancing (mode ...
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6answers
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Why does my gigabit bond not deliver at least 150 MB/s throughput?

I directly connected two PowerEdge 6950 crossover (using straight lines) on two different PCIe-adapters. I get a gigabit link on each of these lines (1000 MBit, full duplex, flow contol in both ...
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1answer
586 views

Intel 82576 Dual-Port Controller Teaming

Can I team two ports from the same controller? My scenario is that I have two switches on the same network for redundancy. I want to connect each NIC Port of a dual-port server to a separate switch ...
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1answer
301 views

Do Both Ends Need LACP Configured for LACP to work?

We are trying to use link aggregation for some our experiments. So, we want to ask - If we have created link aggregation group with several ports on our switch do we have to create link aggreagation ...
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1answer
179 views

Using a UTM with a Link Aggregrator

I consider changing my office's internet access infrastructure to multilpe ADSL lines aggregated with a link aggregator (Peplink B710). I plan to place my existing UTM (FortiGate-100A) after the ...
2
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1answer
287 views

Ubuntu 9.10 Network Bonding — randomly dies

I've run out of ideas with this problem, so thought a SF question may help. We've a number of Ubuntu 9.10 servers which we've recently switch from single NICs to bonded NICs using standard kernel ...
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1answer
990 views

Etherchannel between Cisco Catalyst 3548 and Linux box

We have a Cisco 3548XL switch. Fa0/1 and Fa0/2 are configured with the: port group 1 option. This gives me this: switch#show etherchannel summary Flags: d - default D - ...
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5answers
667 views

How do I bond ADSL lines for VOIP?

We're using G711a as a codec, and I wanted to bond ADSL lines to give me the maximum possible upstream. I know that there can be issues of packet re-ordering etc; what is the 'right' way to do this? ...
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3answers
1k views

Nic bonding and ESXI

I was wondering something related a setup I was planning to do. I am redo doing my small vmware network to change to a better box as my iscsi target. Just like my old box this one has 2 gigabit ...
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1answer
157 views

Using twice NATTing and dns_Alg

I am trying to use twice nat along with dns_alg to support a framework, and take its measurements. I have a private network 192.168.0.0/24 this network contains www,dns,dhcp etc for its own ...
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1answer
1k views

Which switches can I use for Ethernet bonding?

I'm just about to configure a DELL PowerEdge T410 server with 2 network cards. I'm trying to decide for a network switch and I'll need to configure the server for link aggregation later. I read the ...
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4answers
7k views

Bonding and default gateway problem (CentOS)

I configured network bonding on two machine with centos 5.5. Bonding works well, but the problem is default gateway: it is not configured! I follow this tutorial. I added GATEWAY in both (and either) ...
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1answer
365 views

ISP Bonding with outgoing VPN and QOS - hardware, software?

My company has an office that is... at the end of a slow cable balsed link (6mbit / 0,5mbit up) with no real chance to get it faster (outskirts of the city, we tried). We may have an ugprade coming in ...
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1answer
693 views

Increase network bandwidth between 2 servers

Is it possible to increase the network bandwidth between 2 servers on Windows Server 2008 and Windows 7 ? For example : Use 2 Gigabit NICs on each computer to have 2 Gigabits/sec between 2 machines ? ...