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тАО05-23-2011 06:22 AM
тАО05-23-2011 06:22 AM
Tunk between Proliant and Procurve
I have a Prosurve 5308xl (software E.11.21) and a Proliant DL380G6 (windows 2008 r2 sp1), both builtin server network cards are plugged to gibabit port of the switch.
I would like to use the 2 links as a single 2 Gb/s interface. I put both port of the switch in an lacp trunk, I used the server NCU to team the cards : when i choose LACP on server it's only show me a 1Gb link, when i choose SLB it show me a 2 Gb but it load balance at 1Gb max only.
Anyone knows what to do on either switch and server to reach the 2 Gb ?
Regards
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тАО05-23-2011 10:54 PM
тАО05-23-2011 10:54 PM
Re: Tunk between Proliant and Procurve
two years ago, I have detected this when I try to optimize a backup server.
for the input traffic on a 2Gb/s team on the server : if the traffic comes from 1 server, it use 1 card end is limited to 1Gb/s, if the traffic come from 2 servers or more, the traffic use the to cards. for the output traffic, I use Round Robin load balancing.
It's strange, if I use 2 servers with a 2Gb/s team and a Round Robin load balancing the traffic comes from the server to the switch using 2 cards and from the switch to the destination server using only one card.
I don't know to avoid this
Pascal
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тАО05-24-2011 01:02 AM
тАО05-24-2011 01:02 AM
Re: Tunk between Proliant and Procurve
Hi what is your switch configuration?
On the server side, you should set it to use LACP. On the switch side the ports should be set to LACP passive.
Tore
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тАО05-24-2011 01:57 AM
тАО05-24-2011 01:57 AM
Re: Tunk between Proliant and Procurve
On the server "Team type selection" => "Automatic", if I choose "802.3ad Dynamic with fault tolerance" (wich i suppose to be LACP) it only show me a 1Gb team.
Since i control both sides, i'm just looking for the right set of configuration to apply.
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тАО05-24-2011 02:00 AM
тАО05-24-2011 02:00 AM
Re: Tunk between Proliant and Procurve
Then the server will act as the active side, and set up the dynamic LACP trunk.
Or you could configure the static trunk as LACP.
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тАО05-24-2011 02:57 AM
тАО05-24-2011 02:57 AM
Re: Tunk between Proliant and Procurve
With 1 connection or 1 transfer, the speed can never exceed the speed of 1 NIC/PORT.
Only when several connection goes over the trunk/link aggregation will it ditribute over the NICs/ports.
So 1 single transfer will only achieve 1 gb/s while several independent transfers can together exceed 1gb/s
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тАО05-24-2011 05:32 AM
тАО05-24-2011 05:32 AM
Re: Tunk between Proliant and Procurve
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тАО05-24-2011 06:56 AM - last edited on тАО07-07-2011 09:24 AM by Kevin_Paul
тАО05-24-2011 06:56 AM - last edited on тАО07-07-2011 09:24 AM by Kevin_Paul
Re: Tunk between Proliant and Procurve
I would try to set the Proliant Teaming utility to 802.3ad Dynamic, and leave the switch ports to LACP passive (no trunk configured)
On the switch run the command "show trunk" to verify if the LACP trunk was established.
Some more info here
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тАО05-24-2011 07:00 AM
тАО05-24-2011 07:00 AM
Re: Tunk between Proliant and Procurve
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тАО05-24-2011 08:07 AM
тАО05-24-2011 08:07 AM
Re: Tunk between Proliant and Procurve
I will test again at the server place thursday (i lost the remote desktop with changing VLAN ...) to see the published speed on the server.
I will then post the result.