HP 1910-24g and link aggregation

Hi!
I need to know if two this switches are capable of link aggregation.
I have an esxi server, and i want to configure it for fault tollerance and load balance with nic teaming, connect one nic to every switch, so that if a switch fail the server continue working without interruption.
It's possible to do it or the switches support only link aggregation between ports of the same switch?
Thanks!!

Masterx81,
This is the consumer products forum.
You want the HP Enterprise Business Community for server questions.
I am guessing this is the specific area you require for esxi vmware.
Also here... HP1910 Port Aggregation over 2 or more switches?

Similar Messages

Etherchannel and link aggregation

Hi!
I'm a bit confused now, Sun Trunking supports Cisco Etherchannel, but link aggregation doesn't (if I understand correctly, a with the results of my quick tests).
Sun Trunking seems to be supporting a certain set of drivers and link aggregation another set.
Right now I've got a T2000 with 4 X e1000g and 4 X nxge, does anyone knows, if I can use these interfaces with Cisco Etherchannel, or do I absolutely need to use LACP with link aggregation??? The problem is that the network guys don't want us to use LACP (for whatever reason they have)...
Thank you very much.
Martin

I don't know any cisco term referring to "pure" etherchannel, so I don't know how to answer that. Both LACP and PAgP are link management protocols that cisco can use. I'm supposing that you're asking if the cards will work with PAgP management, but I'm not sure.
This FAQ:
http://www.sun.com/products/networking/ethernet/suntrunking/faq.xml
suggests that I've been incorrect about 802.3ad being a "new" thing and that SunTrunking 1.3 also uses it.
The SunTrunking 1.3 docs here:
http://docs.sun.com/source/817-3374-11/index.html
in chapter 1 (Overview) list six cards. I don't think yours are any of them, so SunTrunking is out.
Because LACP "only" manages the link configuration rather than driving the data, it seems to me that both the link-aggregation and cisco sides could work without LACP being present, but the management of the links might be wonky.
So without LACP, the links have to be configured manually, but I don't yet see anything that states that the two sides will not communicate if that is done.
Further, the 'dladm' man page says that one valid lacp mode on the Solaris is "off", so it must have some functionality without LACP. I would imagine that will required some sort of manual link configuration on the cisco side. (The solaris side is not going to do PAgP).
See also:
http://www.kabewm.com/2007/02/22/solaris-10-lacp-trunking-w-cisco-6509/
When the www.opensolaris.org boards come back up, I would recommend posting this question in the "networking" discussion group.
Darren

X Serve and link aggregation - how to get more speed

Based on the thread http://discussions.apple.com/thread.jspa?threadID=1583184
is there any news with Snow Leopard Server and bonding 2 or 4 nics on an XServe to get a true load balancing? Can you recommend specific ethernet switches?
Thanks
Kostas

Why do you think Snow Leopard makes any difference?
Link Aggregation is an IEEE standard. Apple can't arbitrarily change their implementation of it.
As for switches, I've used it successfully on a variety of HP, Cisco and Foundry switches, although since it's a standard protocol almost any switch should work.

Link aggregated between NAS and a switch: the Mac as a very slow access...

Hello,
in my Office we're working with Macs and PCs and all the data is on a NAS.
Here is our configuration:
NAS <-link1->Switch<-Link2->Macs or PC.
Macs are connected with AFP protocol (because SMB is very slow).
We want to use Link Aggregation between the NAS and the switch (with 802.3ad procotol) but when we do that all the Macs have a very slow access to the NAS. But all is OK with the PCs.
What can we do? Is there a problem with macOS X and link aggregation?
Thank you for your help.
Nicolas

Sorry, not sure what the question is exactly.
You must have an Xserve, or Ethernet cards capable of Jumbo Frames for one, I assume the Switch & NAS are capable?
Possible clues...
http://docs.info.apple.com/article.html?path=ServerAdmin/10.4/en/c3ha3.html
http://discussions.apple.com/thread.jspa?threadID=1715388&tstart=0
http://www.macnn.com/articles/04/06/21/link.aggregation.for.macs/
http://www.smallnetbuilder.com/content/view/30556/53/
http://www.afp548.com/forum/viewtopic.php?showtopic=8309

Fedora and SRW2024 link aggregation

Usually I am reluctant to criticize products, but this time I decided to get it out of my chest.
For people considering purchase of Linksys SRW2024 I would rather suggest to think twice before making this step.
Let’s cut to the chase... Recently I have built iSCSI storage with 2x 1Gbit NIC (Inter 1000PT) for my ESX server and the only missing ingredient was a dissent gigabit switch. Eventually I got SRW2024 as according to Linksys specs it supports VLANs and Link Aggregation etc. After configuring Fedora distro for link bonding I was unable to ping any of the hosts on the network (172.16.192.0/24). I checked the status of individual NICs and a configuration on the switch million of times, but I couldn’t find anything that was out of ordinary. In order to eliminate issues with NIC bonding on Fedora system I used my old DES3226 Layer 2 switch... and guess what? It worked just fine.
Next obvious step was to upgrade firmware from 1.2.1 to 1.2.2 (hardware version 1.2), but yet again... NO LUCK.
My question to Linksys Support or anyone who come across the same issue is – Are you aware of the issue and if so please did you find the solution as I have found number of users having similar problems!

Hi, the topic is quite old, but I am facing the same problem. We have three SRW2024 Switches. The LACP between the Switches is working, but I want to use the 802.3ad (EtherNet Link Aggregation) with two Xserves, but can´t get it working. The Linksys-Support is unable to help, because they ignore Apple-Products and name it an Apple-problem. Witch Firmware do You use on Your SRW2024? Many thanks in advance Regards svenc
Message Edited by svenc on 03-14-2008 01:16 AM

Link Aggregation + Jumbo Frames

Has anybody been able to enable both at the same time? I've been able to try jumbo frames only and link aggregation only without problems. But I want to experiment enabling both at the same time. Is this possible with Mac OS X Server 10.5.2?

I found out that you can activate jumbo frames on an aggregated link setup with the following command:
#sudo ifconfig bond0 [your IP] netmask [your Mask] mtu 9000
but this setting is lost when you reboot your computer.

Link Aggregation: LGS318P Switch and LRT214 Router

The manual for my LGS318P is a little confusing (perhaps because I'm relatively new at more advanced features of networking).
I have an LRT214 router that I'm now routing all traffic through my LGS318P in the basement. From there it goes to multiple locations in the house, WAP's, etc. Currently, port 17 of the LGS318P connects to LAN1 of my LRT214 router. LAN2-4 are unused.
I would like to create a link aggregation for ports 17 and 18 to LAN1 and LAN2 of my router for both redundancy as well as possible speed improvement.
What is the best way to do this? Do I simply edit LAG1, place GE17 and GE18 as LAG port members, and select LACP to enable? Will that automatically set things up?
I don't want to do this then lose connectivity to my switch to reverse things.
Also, how many ports can be aggregated? Can I use 4 ports on the switch to the 4 LAN ports on the router?
What about the flow control option? Should that be disabled (default setting), enabled, or auto?
Thanks for all the help anyone can provide!

I also found something from the Linksys website for your consumption. I provides additional information about the rules of setting up LAC. The link is located at:
http://kb.linksys.com/Linksys/ukp.aspx?vw=1&docid=986c6706bc7649b686850c5a26855a8f_15746.xml&pid=80&...
I hope it helps.

Link Aggregation and OS X Server

Hello.
I'm moving my servers (3 x Intel Xserves running 10.5.6) to a new location with all new network hardware (wiring, switches, routers, etc.) and I'm now considering using link aggregation on the Xserves (the previous switches didn't support it while the new ones do) — but, since I'm working with servers which are already set up I'm concerned I might "break" services by moving to link aggregation. I've concerned that services which are bound to a specific network connection/port will fail when setting up link aggregation (for example, an Open Directory setup as OD Master).
Does anyone have any experience with this? I've read that with OD you have to revert back to an Standalone setup before setting up link aggregation, but I've only seen this mentioned once on other forums (and have never seen it confirmed anywhere).
Anyway, if anyone has any experience/advice/etc. it'd be much appreciated!
Regards,
Kristin.

To add to that question, do I just have to set the link aggregation in the Network interfaces preferences of the X-Serves or do we also have to set the Switches (through their administration interfaces) to be prepared for link-aggregation?

Link aggregation and DNS

Brand new Xserve intel
link aggregation turn on two network cards works great.
DNS is running but when testing i dont' resolve his own adres
Link aggregation off DNS works
What goes wrong ?
thanks

You mean if the DNS server is running on the same machine you can no longer use it if bonding the interfaces?
I only know I saw a problem when I used 127.0.0.1 as the nameserver address in Network settings on the bonded interface. Users that always get the same "macaddress locked" static IP from the DHCP server, running in the same machine, got that as the nameserver IP (from the machine's Network setting) instead of from the ones in DHCP config.
(The DHCP server config also needed to be altered to serve on the bond0 interface).
And I think the info in /etc/named.conf "to only use 127.0.0.1" is, you should only allow for alterations of DNS server settings from that IP and maybe not that you should use it as the IP in Network settings.

SRW224G4 and 2960 Link Aggregation LACP problem

Hello
WE have Linksys SRW224G4 and Cisco 2960 switches.
We made link aggregation onboth two ports between them, all is working except that when I make continuous ping between them it fails every 90 seconds one ping. I saw the problem is , when I connect to SRW224G4 by telnet and go CTRL+Z and lcli , and login, I got console. Every 90 seconds I got this messages:
01-Jan-2000 22:14:49 %TRUNK-W-PORTREMOVED: Port g2 removed from ch1
01-Jan-2000 22:14:53 %TRUNK-W-PORTREMOVED: Port g1 removed from ch1
01-Jan-2000 22:14:53 %LINK-W-Down: ch1
01-Jan-2000 22:14:53 %TRUNK-I-PORTADDED: Port g1 added to ch1
01-Jan-2000 22:14:53 %LINK-I-Up: ch1
01-Jan-2000 22:14:56 %TRUNK-I-PORTADDED: Port g2 added to ch1
So after this one ping fails, and it goes good next 90 seconds, and then again same group of same messages and one ping fails.
I tried all options to change on Linksys and nothing, still i got this link down and up and one ping failed.
Did someone had same problem, can you help me somehow.
THank you
Hrvoje Pastar

Hello
WE have Linksys SRW224G4 and Cisco 2960 switches.
We made link aggregation onboth two ports between them, all is working except that when I make continuous ping between them it fails every 90 seconds one ping. I saw the problem is , when I connect to SRW224G4 by telnet and go CTRL+Z and lcli , and login, I got console. Every 90 seconds I got this messages:
01-Jan-2000 22:14:49 %TRUNK-W-PORTREMOVED: Port g2 removed from ch1
01-Jan-2000 22:14:53 %TRUNK-W-PORTREMOVED: Port g1 removed from ch1
01-Jan-2000 22:14:53 %LINK-W-Down: ch1
01-Jan-2000 22:14:53 %TRUNK-I-PORTADDED: Port g1 added to ch1
01-Jan-2000 22:14:53 %LINK-I-Up: ch1
01-Jan-2000 22:14:56 %TRUNK-I-PORTADDED: Port g2 added to ch1
So after this one ping fails, and it goes good next 90 seconds, and then again same group of same messages and one ping fails.
I tried all options to change on Linksys and nothing, still i got this link down and up and one ping failed.
Did someone had same problem, can you help me somehow.
THank you
Hrvoje Pastar

Using Link Aggregation and VLAN tagging with LDOMs

Hi,
Anyone know if Link aggregation combined with VLAN tagging works for LDOMs?
Any links or references would be appreciated.....
It would be very handy if each LDOM could have multiple interfaces on different VLANs....
Regards,
Daniel

I agree with bzptlx. While you can have vswitch plumbed without net-dev, and then route traffic inside the control domain, so that you can utilize aggregation, it adds complexity, and in some environments it's just impossible.
I would say that this is number 1 deficiency with LDOM's in general.

Assistance needed with SG300-10 and QNAP TS-459 Pro II Link Aggregation

All,
As the subject specifies, I have a pair of devices on a local network that I would like to play nicely together.
My problem:
If the TS-459 is configured for standalone (No Link Aggregation), then I can access the NAS via Ping, web interface, NFS, etc.. however, If I try enabling Link Aggregation, then I lose TCP/IP connectivity to it and must use QNAP's Finder utility to change Link Aggregation mode back to Standalone.
What I'm asking is - has anyone here configured a QNAP NAS appliance with Link Aggregation enabled with an SG300 or similar?? If so, could you kindly provide a walk-through on the appropriate settings for each?
My first attempts on the NAS side were to choose the "Balance-alb" (automatic load balance) and "Balance-tlb" (adaptive transmit load balance) - The QNAP_Turbo_NAS_User_manual_V3.4_ENG.pdf states that these two modes are for "General Switches", so I assumed they should work.. unfortunately, no luck for me..
Next up, I tried the IEEE 802.3ad / Link Aggregation setting on the NAS, while the device was rebooting, I configured the two GB ports on the SG300 to be a LAG with LACP enabled. Unfortunately, this too did not work as I had hoped.
I called QNAP support and of course they don't have an Sg300-10 to test with, but will test their TS-459 Pro II to confirm the Link Aggregation settings function as advertised. I hope to hear back from them later this evening. In the meantime, if anyone here has insight, it would be very much appreciated. The NAS and SG300 are for a home lab consisting of a pair of Dual-six core systems with 48GB of mem each for vSphere.
NAS Details:
Model: QNAP TS-459 Pro II
Firmware: 3.4.4 (0718T)
Drives: Seagate 2TB x4
Switch Details:
Model: Cisco SG300-10
Firmware version active image: 1.1.0.73
Thank you,
Burke

Hi Burke,
You can use link-aggregation 802.3AD with the sg-300. Try to make the trunk in the sg-300 with LACP enabled (before you make the trunk, otherwise LACP is disabled and you will only be able to do so by deleting the trunk and add it again). Flow control is enabled in the sg-300 (altough i'm not sure if this is needed). I've got the sg-300 and the QNAP TS 439 pro II+.

Link Aggregation - computer to switch-pair

Hi all,
According to the Mac OS X Server documentation (http://images.apple.com/server/macosx/docs/AdvancedServer_Adminv10.6.pdf, page 165), it is possible to create a "Computer to switch-pair" scenario, to provide a redundant network connection for an Xserve running OS X Server 10.5 or 10.6.
What I would like to set up, is for an Xserve to connect to 2 different switches (using link aggregation as described in the manual), so that if a switch fails, the Xserve retains connectivity (using the same IP address).
Has anyone managed to do this in reality? If so, would you mind telling me how it is configured? Info on how to set this up is non-existent...even a local Apple engineer was unable to help.
If it helps, I'm connecting my Xserves to either: (a) a pair of HP ProCurve 2810-24G switches, or (b) HP ProCurve 8200zl and 5400zl switch
Thanks in advance for any assistance.
Cheers,
Dave.

Link aggregation can give you redundancy and greater bandwidth by allowing you to combine Ethernet ports, but the ports must be connected to the same switch. I don't believe there is a way to connect to two different switches using the same IP as technically that would create a loop, which would bring the connection on your Mac to a halt, if not slow down the entire switch.
Switch failure isn't super-common, at least not in my experience, and you're using good switches to begin with. I would create a link if you need more bandwidth to the switch for, say, a fileserver but otherwise, I wouldn't worry about it.
If you do decide to try link aggregating, you need to do two things:
In OS X under Network Prefs go to > (Gear Icon) Manage Virtual Interfaces > New Link Aggregate... and combine your ports there. In the new Network panel created for the new ethernet bond, enter your TCP/IP settings.
In the switch, you need to enable LACP (Link Aggregation Control Protocol) for each port you want to include in the link aggregation. This is usually just a checkbox in the main ports page of the switch admin interface. Many switches don't support link aggregation, so if you can't find it easily, make sure your switch actually includes it.
JM

How can I set a right link Aggregations?

I have a Enterprise T5220 server, running Solaris 10 that I am using as a backup server. On this server, I have a Layer 4, LACP-enabled link aggregation set up using two of the server's Gigabit NICs (e1000g2 and e1000g3) and until recently I was getting up to and sometimes over 1.5 Gb/s as desired. However, something has happened recently to where I can now barely get over 1 Gb/s. As far as I know, no patches were applied to the server and no changes were made to the switch that it's connected to (Nortel Passport 8600 Series) and the total amount of backup data sent to the server has stayed fairly constant. I have tried setting up the aggregation multiple times and in multiple ways to no avail. (LACP enabled/disabled, different policies, etc.) I've also tried using different ports on the server and switch to rule out any faulty port problems. Our networking guys assure me that the aggregation is set up correctly on the switch side but I can get more details if needed.
In order to attempt to better troubleshoot the problem, I run one of several network speed tools (nttcp, nepim, & iperf) as the "server" on the T5220, and I set up a spare X2100 as a "client". Both the server and client are connected to the same switch. The first set of tests with all three tools yields roughly 600 Mb/s. This seems a bit low to me, I seem to remember getting 700+ Mb/s prior to this "issue". When I run a second set of tests from two separate "client" X2100 servers, coming in on two different Gig ports on the T5220, each port also does ~600 Mb/s. I have also tried using crossover cables and I only get maybe a 50-75 Mb/s increase. After Googling Solaris network optimizations, I found that if I double tcp_max_buf to 2097152, and set tcp_xmit_hiwat & tcp_recv_hiwat to 524288, it bumps up the speed of a single Gig port to ~920 Mb/s. That's more like it!
Unfortunately however, even with the TCP tweaks enabled, I still only get a little over 1 Gb/s through the two aggregated Gig ports. It seems as though the aggregation is only using one port, though MRTG graphs of the two switch ports do in fact show that they are both being utilized equally, essentially splitting the 1 Gb/s speed between
the two ports.
Problem with the server? switch? Aggregation software? All the above? At any rate, I seem to be missing something.. Any help regarding this issue would be greatly appreciated!
Regards,
sundy
Output of several commands on the T5220:
uname -a:
SunOS oitbus1 5.10 Generic_137111-07 sun4v sparc SUNW,SPARC-Enterprise-T5220
ifconfig -a (IP and broadcast hidden for security):
lo0: flags=2001000849 mtu 8232 index 1
inet 127.0.0.1 netmask ff000000
aggr1: flags=1000843 mtu 1500 index 2
inet x.x.x.x netmask ffffff00 broadcast x.x.x.x
ether 0:14:4f:ec:bc:1e
dladm show-dev:
e1000g0 link: unknown speed: 0 Mbps duplex: half
e1000g1 link: unknown speed: 0 Mbps duplex: half
e1000g2 link: up speed: 1000 Mbps duplex: full
e1000g3 link: up speed: 1000 Mbps duplex: full
dladm show-link:
e1000g0 type: non-vlan mtu: 1500 device: e1000g0
e1000g1 type: non-vlan mtu: 1500 device: e1000g1
e1000g2 type: non-vlan mtu: 1500 device: e1000g2
e1000g3 type: non-vlan mtu: 1500 device: e1000g3
aggr1 type: non-vlan mtu: 1500 aggregation: key 1
dladm show-aggr:
key: 1 (0x0001) policy: L4 address: 0:14:4f:ec:bc:1e (auto) device address speed
duplex link state
e1000g2 0:14:4f:ec:bc:1e 1000 Mbps full up attached
e1000g3 1000 Mbps full up attached
dladm show-aggr -L:
key: 1 (0x0001) policy: L4 address: 0:14:4f:ec:bc:1e (auto) LACP mode: active LACP timer: short
device activity timeout aggregatable sync coll dist defaulted expired
e1000g2 active short yes yes yes yes no no
e1000g3 active short yes yes yes yes no no
dladm show-aggr -s:
key: 1 ipackets rbytes opackets obytes %ipkts %opkts
Total 464982722061215050501612388529872161440848661
e1000g2 30677028844072327428231142100939796617960694 66.0 59.5
e1000g3 15821243372049177622000967520476 64822888149 34.0 40.5

sundy.liu wrote:
Unfortunately however, even with the TCP tweaks enabled, I still only get a little over 1 Gb/s through the two aggregated Gig ports. It seems as though the aggregation is only using one port, though MRTG graphs of the two switch ports do in fact show that they are both being utilized equally, essentially splitting the 1 Gb/s speed between
the two ports.
Problem with the server? switch? Aggregation software? All the above? At any rate, I seem to be missing something.. Any help regarding this issue would be greatly appreciated!If you're only running a single stream, that's all you'll see. Teaming/aggregating doesn't make one stream go faster.
If you ran two streams simultaneously, then you should see a difference between a single 1G interface and an aggregate of two 1G interfaces.
Darren

How to set up Link Aggregation on Windows 7 ?

I am going to buy a new Switcher that is LACP (Link Aggregation Control Protocol) supported so I can get a little bit better internet by combining my two ethernet ports on my MacPro (Mid 2012) where i have Windows 7 Ultimate installed as well as Mac OSx. On Mac OSx it is easy to set up Link Aggregation takes only 30 sec by going to Manage Virtual Interfaces and click round (for doing this you need a Link Aggregation supported router or switcher), but on Windows it seems to be a little bit harder after looking around for a while now. Is there anyone here who knows how to do it or know if its possible to set up Link Aggregation on Windows 7 ?
I'll be thankful for any help i can get

hehe I thought over that too
But since I dont got a windows forum account I thought of asking here fisrst

HP 1910-24g and link aggregation

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