we are looking at channel bonding / link aggregation (2 x 1 Gbit/s) on our
hadoop slaves.
what is the recommended bonding mode? i found some references to mode 4
(802.3ad, hardware based) and to mode 6 (balance-alb, software based) in
hadoop mailing lists.
thanks! koert

On Sun, Aug 26, 2012 at 10:47 AM, Koert Kuipers <[EMAIL PROTECTED]> wrote:

> we are looking at channel bonding / link aggregation (2 x 1 Gbit/s) on
> our hadoop slaves.
> what is the recommended bonding mode? i found some references to mode 4
> (802.3ad, hardware based) and to mode 6 (balance-alb, software based) in
> hadoop mailing lists.
> thanks! koert
>

I have configured LACP before and seems to be the standard. Do post your
results, in general don't expect to see 2 Gbps, you'll probably get around
1.5 Gbps or less depending on hardware vendor.

Thanks! I will post results. What is the recommended way to measure it? (I
am on Centos 5.x)

On Sun, Aug 26, 2012 at 1:58 PM, Mohit Anchlia <[EMAIL PROTECTED]>wrote:

>
>
> On Sun, Aug 26, 2012 at 10:47 AM, Koert Kuipers <[EMAIL PROTECTED]> wrote:
>
>> we are looking at channel bonding / link aggregation (2 x 1 Gbit/s) on
>> our hadoop slaves.
>> what is the recommended bonding mode? i found some references to mode 4
>> (802.3ad, hardware based) and to mode 6 (balance-alb, software based) in
>> hadoop mailing lists.
>> thanks! koert
>>
>
> I have configured LACP before and seems to be the standard. Do post your
> results, in general don't expect to see 2 Gbps, you'll probably get around
> 1.5 Gbps or less depending on hardware vendor.
>

On Sun, Aug 26, 2012 at 10:59 AM, Koert Kuipers <[EMAIL PROTECTED]> wrote:

> Thanks! I will post results. What is the recommended way to measure it? (I
> am on Centos 5.x)
>

Use iperf between the hosts that have bonded interface.

>
> On Sun, Aug 26, 2012 at 1:58 PM, Mohit Anchlia <[EMAIL PROTECTED]>wrote:
>
>>
>>
>> On Sun, Aug 26, 2012 at 10:47 AM, Koert Kuipers <[EMAIL PROTECTED]>wrote:
>>
>>> we are looking at channel bonding / link aggregation (2 x 1 Gbit/s) on
>>> our hadoop slaves.
>>> what is the recommended bonding mode? i found some references to mode 4
>>> (802.3ad, hardware based) and to mode 6 (balance-alb, software based) in
>>> hadoop mailing lists.
>>> thanks! koert
>>>
>>
>> I have configured LACP before and seems to be the standard. Do post your
>> results, in general don't expect to see 2 Gbps, you'll probably get around
>> 1.5 Gbps or less depending on hardware vendor.
>>
>
>

What do you want to use channel bonding for? Increasing throughput or increasing availlability?

Raj

>________________________________
> From: Koert Kuipers <[EMAIL PROTECTED]>
>To: [EMAIL PROTECTED]
>Sent: Sunday, August 26, 2012 10:59 AM
>Subject: Re: ethernet bonding / 802.3ad / link aggregation
>
>
>Thanks! I will post results. What is the recommended way to measure it? (I am on Centos 5.x)
>
>
>On Sun, Aug 26, 2012 at 1:58 PM, Mohit Anchlia <[EMAIL PROTECTED]> wrote:
>
>
>>
>>
>>On Sun, Aug 26, 2012 at 10:47 AM, Koert Kuipers <[EMAIL PROTECTED]> wrote:
>>
>>we are looking at channel bonding / link aggregation (2 x 1 Gbit/s) on our hadoop slaves.
>>>what is the recommended bonding mode? i found some references to mode 4 (802.3ad, hardware based) and to mode 6 (balance-alb, software based) in hadoop mailing lists.
>>>thanks! koert
>>>
>> 
>>I have configured LACP before and seems to be the standard. Do post your results, in general don't expect to see 2 Gbps, you'll probably get around 1.5 Gbps or less depending on hardware vendor.
>>
>
>
>