The tag has no wiki summary.

learn more… | top users | synonyms

1
vote
0answers
25 views

CentOS 6.4 - Trying to lose link, but can't

I am trying to test out active/active LACP bonding between CentOS 6.4 and Arista. One of the tests I'm doing is to shut down an interface on the host and see what happens. On the switch: Link ...
-2
votes
1answer
12 views

Force10 S50N LACP Correctly configured? [on hold]

I was wondering if my Force10 LACP Setup is ok? The options seem pretty confusing. :( s50n#show lacp 126 Port-channel 126 admin up, oper up, mode lacp Actor System ID: Priority 32768, Address ...
10
votes
1answer
283 views

FreeBSD link aggregation no faster than single link

We put a 4 port Intel I340-T4 NIC in a FreeBSD 9.3 server1 and configured it for link aggregation in LACP mode in an attempt to decrease the time it takes to mirror 8 to 16 TiB of data from a master ...
-1
votes
1answer
262 views

Network load balancing: LACP between Debian & FreeNAS over Cisco Switch doesn't work

My setup: 2 Debian Server, with Bonding 2 Storage Server FreeNAS with Link Aggregation 1 Cisco Switch SG-200 with LAG enabled MTU 9000 enabled everywhere Result: Network performance is still single ...
1
vote
1answer
84 views

Receive-side NIC teaming using LACP for use with NFS

I have a server with a 10G connection to a central switch. One NFS client has (2) gigabit NICS connected to the same switch. I'd like the NFS client to receive bandwidth of 2Gbps from the 10G server ...
0
votes
3answers
46 views

Communication redundancy

I have a device that is connected to a switch and is then connected to a customer controller. I have been asked to make the connection to the controller redundant because they are very far apart from ...
0
votes
1answer
351 views

Increase Network Bandwidth on Windows Server 2008 R2

I am looking after this network with around 40 clients on one Windows 2008 R2 server. These clients are connected to server via two gigabit switches (24-port dumb switches). Over the next few months ...
0
votes
2answers
1k views

Can bonding 2 interfaces double the speed?

I have 2 linux boxes running centos 6.5 each with 2 interfaces bonded together, linked to a Cisco 2960-S switch with lacp configured ports. The configuration on the switch port-channel load-balance ...
2
votes
2answers
3k views

Link aggregation (LACP/802.3ad) max throughput

I'm seeing some confusing behaviour regarding bonded interfaces under Linux and I'd like to throw the situation out there in hopes that someone can clear it up for me. I have two servers: Server 1 ...
0
votes
1answer
76 views

LACP vs manual load sharing

I have a file server with multiple NICs (1Gbps) consumed by some different kinds of client. Given my switch is configured hash using src and dest ip and port. By manual load sharing I mean NICs on ...
3
votes
1answer
206 views

LACP with VMWare 5.1 Distributed Switches (VDS) over multiple hosts.. How many switch LACP groups?

I'm setting up a 2-host VMWare 5.1 Cluster to use a vDS (Virtual Distributed Switch) with LACP enabled, over 4 NICs (2 per host). In times past, when I've used VMWare Standard Switches with Static ...
0
votes
2answers
703 views

Link Aggregation & Windows Servers

So... We have a few servers that we would like load balanced link aggregation between multiple network interfaces. In the past we have used broadcom basp teaming using LACP. Today we encountered THIS ...
1
vote
0answers
139 views

can switch handle multiple LACP teams on the same ports

If I use SRIOV capable adapter for virtualization, and setup 2 different LACP links in 2 guests, so there may be 2 LACP links on the same ports on switch side, can switch handle this case? For ...
4
votes
1answer
2k views

LACP with 2 NICs working when either one is down, not when both are up

I'm running into problems with getting a LACP trunk to operate properly on Ubuntu 12.04.2 LTS. My setup is a single host connected with two 10 Gbe interfaces to two seperate Nexus 5548 switches, with ...
2
votes
0answers
622 views

Configuring LACP between OpenIndiana (Solaris) and a Cisco C3560

I am running OpenIndiana (oi_151a8) and have two NICs aggregated using LACP connected to a Cisco WS-C3560G-48TS. Both the server and the switch show the aggregate link as up. But while link layer ...
3
votes
1answer
928 views

HP Procurve Core Switch Architecture

I want to build a new 'core' for our network. We currently have a 3com 4060 switch acting as the core, connecting all the other TOR and access switches together. The goal is to add resilience into ...
2
votes
1answer
82 views

LACP or some type of round robin concept

I'm having trouble figuring out the best way to utilize redundant connections on several of our Windows based servers. We're running a large cluster of powerEdge 750s which come with dual gigabit ...
1
vote
1answer
569 views

LACP : Cisco ASA 5515 & Switch ProCurve 2920

I've two ASAs 5515 connected in failover Active/Stand by (on Gi0/5) My two ASAs are connected to two Switch ProCurve 2920 to have HA if something happens. So I plug something like that (don't pay ...
5
votes
3answers
1k views

Best way to provide redundant switching/links to server

We have 3x ESX hosts and 2x SANS that we wish to move to a redundant 10G networking infrastructure. We have 4x Dell PowerConnect 8024F's to provide our backbone and are configured as so (only core ...
0
votes
2answers
5k views

Linux Centos6 adapter bonding - Cisco 2960S EtherChannel LACP

I want to connect a CentOS 6.4 Linux Box with two NICs to a Cisco 2960S using LACP 802.3ad port aggregation. This mainly for redundancy reasons (and hopefully more bandwith). We don't use VLAN ...
0
votes
2answers
996 views

LACP Aggregation between Cisco C3750X and HP JD990A

The interface on the JD990A is very cut down. There is a serial console with minimal commands and a web interface. The 3750 is in a 2 switch stack and I am trying to configure cross-stack link ...
7
votes
1answer
2k views

Layer 2 Loop Avoidance: Three Switches in Series

I know this seems like a homework question, but it's actually part of a larger project (and network) and need to break it down into chunks so I'm clear with what I'm doing. I've never worked with ...
5
votes
2answers
703 views

LACP vs 802.3ad

I’m looking to create an aggregation on a Solaris box using dladm. I understand that once the aggregation is created, 802.3ad will be used to balance the load depending on the policy (L2, L3 or L4). ...
0
votes
1answer
227 views

ESXi and link aggregation to another system

Can I aggregate two or more interface on ESXi 5.1u1 to connect (without a switch) another system that support this type of connection? I want create a back-to-back link aggregation as like descripted ...
2
votes
0answers
259 views

Configuring LACP across a IBM B50G switch stack

Is it possible to configure LACP (Link aggregation control protocol) that spans across two IBM B50G stacked switches. Below is an illustration of what I am trying to accomplish. I have currently ...
4
votes
1answer
360 views

Is is possible to put a tagged vlan on one physical interface on a Force10 S50N switch?

I servers that have a shared ethernet port for IPMI and the first NIC. They have 4-1GbE nics. I would like to bond the nics via LACP while still being able to access the IPMI over a tagged vlan only ...
2
votes
2answers
599 views

Does LACP routing type have to be the same on all ends?

i was wondering if the routing mechanism for LACP (source / destination MAC, source+destination MAC, source / destination IP, source+destination IP) has to be the same within one LACP trunk* between ...
0
votes
2answers
625 views

Using NFS-root with bonded interfaces

I would like to configure our servers to boot with an NFS-root with two bonded interfaces. I managed to successfully set up the NFS-root with one network interface using a NFS-root enabled initrd ...
11
votes
2answers
2k views

VMware Distributed vSwitches (VDS) - Design, theory, *real* use cases and examples?

I'm starting to explore VMware Distributed Switches (dvSwitches or VDS) for use in existing and new installations. Assume VMware version 5.1 and newer with Enterprise Plus licensing. Prior to this, ...
0
votes
1answer
2k views

Fortigate + HP ProCurve Load Balancing

I have a FortiGate 100D + HP ProCurve 2824 linked together by 4x 1Gb links. The ProCurve is configured to have ports 21-24 trunked together and load balance them. The 4 cables from these ports are ...
1
vote
0answers
610 views

HP E3800 switch to switch LACP connection dropping

I have a problem with 2 sets of stacked (2 switches in each stack) HP E3800 48 port switches. One set of stacked switches per rack for a total of 4 switches. I have a 4 port static LACP connection ...
5
votes
2answers
2k 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 ...
4
votes
5answers
7k views

Does a single LACP channel over multiple switches increase redundancy?

I am curious for opinions, findings, or evidence that having multiple interfaces bonded using LACP to ports in multiple switches can increase redundancy. Previously bonded interfaces have always been ...
3
votes
1answer
970 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 ...
3
votes
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 ...
0
votes
4answers
10k 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 ...
2
votes
1answer
455 views

LACP Total Speed

If we were to connect two switches together using LACP (with 2 X 1Gbe ports on each side), does this mean that the max speed that a single MAC address will ever reach is 1Gb? So for example, if a ...
6
votes
2answers
6k 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 ...
6
votes
3answers
4k views

How do I test the increased bandwidth after setting up LACP?

I have setup LACP, and LAG on our Netgear Switches (GS724T). I have bound(?) two ports together to create one 2Gbps connection between two of the switches. I was wondering if there is a way of ...
0
votes
1answer
941 views

Link Aggregation between DELL PC2724 and Cisco Catalyst 3750

I'm trying to configure Link Aggregation between my two switches, on the DELL switch, there is only an option to include a port in a "LAG Group." On the Cisco's I've tried creating an EtherChannel ...
1
vote
1answer
286 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 ...
3
votes
3answers
3k views

NIC teaming and EtherChannel

Cisco Catalyst 2960S Switch Intel Dual Port NIC (teamed) BroadComm Quad Port NIC (teamed 2 ports) We hired a contractor to setup a fairly simple SQL cluster and SAN storage. With the above switch ...
1
vote
1answer
943 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 - ...
0
votes
1answer
3k views

How would I create multiple VLAN interfaces on a 802.1Q and LACP trunked network connection on Solaris?

I've got a Solaris (Nexenta) NAS box that I'm trying to create multiple VLAN subinterfaces for. Currently, I've got an LACP aggregated link set up on the 10.13.111.0/26 network to my switch (Cisco ...
0
votes
1answer
608 views

Under FreeBSD, can a VLAN interface have a smaller MTU than the primary interface?

I have a system with two physical interfaces, combined into a LACP aggregation group. That LACP channel has two VLANs, one untagged (the "native vlan") and one using VLAN tagging. This gives us: ...
0
votes
1answer
442 views

Cisco LACP MEC on 7200 chassis

I'm currently trying to make some kind of setup like this: 2 Routers 7206VXR / NPE-G1 connected both at Gigabit speed to 2 devices (named D2). There is already a redundancy mechanism on both D2 to ...
1
vote
0answers
1k views

Load-balancing between a Procurve switch and a server

I've been searching around the web for this problem i've been having. It's similar in a way to this question: How exactly & specifically does layer 3 LACP destination address hashing work? My ...
40
votes
4answers
16k views

How exactly & specifically does layer 3 LACP destination address hashing work?

Based on an earlier question over a year ago (Multiplexed 1 Gbps Ethernet?), I went off and setup a new rack with a new ISP with LACP links all over the place. We need this because we have individual ...