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.
0
votes
0answers
27 views
Real DROP while reconfiguring iptables
I got a quite complicated firewall (8 segments) and sometimes I need to reload rules and add some new vlans. I'd like to quiet the traffic for few seconds while new rules are loaded. I.e. I want all ...
0
votes
0answers
31 views
what is the purpose of modprobe.conf as relates to network devices
After some past missteps with bonding network interfaces on servers (x64, OEL/RHEL5) with multiple ethernet chipsets I have taken to hard coding the desired MAC address of my NICs into the ifcfg files ...
2
votes
1answer
37 views
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 ...
0
votes
3answers
321 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 ...
6
votes
1answer
182 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 ...
1
vote
2answers
175 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 ...
1
vote
1answer
53 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 ...
0
votes
1answer
67 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.
...
0
votes
2answers
39 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 ...
0
votes
1answer
123 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). ...
5
votes
3answers
115 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 ...
0
votes
1answer
128 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 ...
3
votes
2answers
409 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 ...
3
votes
2answers
388 views
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 ...
5
votes
3answers
207 views
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 ...
3
votes
2answers
350 views
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 ...
0
votes
2answers
125 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? ...
3
votes
1answer
761 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 ...
0
votes
2answers
134 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 ...
0
votes
2answers
125 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 ...
3
votes
2answers
2k views
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 ...
1
vote
4answers
455 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 ...
0
votes
1answer
230 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 ...
0
votes
1answer
378 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 ...
-1
votes
1answer
226 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 ...
8
votes
2answers
350 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 ...
3
votes
2answers
465 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 ...
8
votes
6answers
2k views
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 ...
1
vote
1answer
272 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 ...
1
vote
1answer
148 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 ...
2
votes
1answer
71 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
votes
1answer
134 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 ...
1
vote
1answer
426 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 - ...
1
vote
5answers
255 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? ...
0
votes
3answers
372 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 ...
0
votes
1answer
90 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 ...
0
votes
1answer
249 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 ...
2
votes
4answers
2k 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) ...
0
votes
1answer
254 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 ...
2
votes
1answer
483 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 ?
...
4
votes
2answers
1k views
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 ...
1
vote
0answers
305 views
Receive Side Scaling disabled on a NIC Team
OS: Windows 7 Pro
I'm working on a HP Compaq 8000 Elite Convertible Minitower PC and I added another NIC, I configured NIC Teaming (Switch Fault Tolerance mode) and I'm getting a pop-up box that ...
0
votes
1answer
647 views
Link Aggregation (Bonding) of OpenVPN TAP devices in Windows XP
Is there any way to bond two TAP devices in Windows XP into one network device?
My ISP is, in theory, providing me with a 5Mb/s connection. However, my OpenVPN tap device can only reach ~100KB/s. ...
2
votes
3answers
2k views
Bonding 2 or more Gigabyte NIC together to get 2Gbps performance between 1 server and 1 client?
I have not gotten the server or the NIC yet, but here is the target setup:
1x Server
1x Client
1 or more NIC linked point to point between the Server & Client (No switch involved)
So I am ...
2
votes
1answer
372 views
Bonding NICs with Procurve 1400-24G switch
I was looking to bond two or three NICs together to increase throughput. Now, this should be straight forward if done computer to computer, but since there are 3 computers involved which require ...
2
votes
5answers
681 views
Device to manage 2 dsl connections - failover, load balancing and bonding
I'm setting up an offsite DR facility on a budget. The office has 2 ADSL lines coming in to identical router/modem devices.
I'm looking for a cost effective (cheap) way of joining the two connections ...
3
votes
4answers
2k views
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 ...
3
votes
2answers
1k views
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
4
votes
1answer
973 views
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 ...
2
votes
2answers
213 views
Possible to aggregate broadband for a bonded upload?
I am looking for a way to aggregate multiple aDSL lines and a cable Internet line to produce a network capable of providing greater speeds in terms of download and upload. I have a video conferencing ...
