Re: CFT: new trunk(4)

From: Niki Denev <ndenev_at_totalterror.net>
Date: Fri, 13 Apr 2007 00:20:17 +0300
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Andrew Thompson wrote:
> On Thu, Apr 12, 2007 at 07:39:00AM +0200, Ian FREISLICH wrote:
>> Peter Jeremy wrote:
>>> On 2007-Apr-11 15:43:04 +0200, Ian FREISLICH <ianf_at_clue.co.za> wrote:
>>>> Andrew Thompson wrote:
>>>>> On Mon, Apr 02, 2007 at 11:17:29AM +0200, Ian FREISLICH wrote:
>>>>>> We're making extensive use of vlans to increase the number of
>>>>>> interfaces availabble to us using switches to break out gigE into
>>>>>> 100M interfaces.  The bandwidth problem we're having is to our
>>>>>> provider, a 100M connection, and we're looking at doing exactly
>>>>>> this.  However, it appears that this interface can't trunk vlan
>>>>>> interfaces.
>>> =2E..
>>>> No, I'm sure I want it the way I said.  I know it sounds wrong, but
>>>> I just don't have enough PCI-X slots to waste 2 on physical 100M
>>>> NICs for the uplink from the routers.
>>> Trunking is a way of combining multiple physical interfaces to increase
>>> the bandwidth.  Trunking multiple VLANs on a single interface doesn't
>>> make sense to me.
>> 802.1q is VLAN tagging and trunking.  This interface is LACP - link
>> aggregation.  I really think that it makes no sense to be able to
>> aggregate some ethernet interfaces and not others.  I suppose some
>> pedant will tell me vlan interfaces are not ethernet.
> 
> I think the unfortunate name of trunk(4) that we inherited from OpenBSD
> is causing quite some confusion.  trunk(4) actually has nothing to do
> with vlan trunking which I think you are after.
> 
> I can see this topic coming up again so it could save some time to
> rename the driver now. It would mean that we lose the naming link to the
> same driver in OpenBSD but you cant win em all.
> 
> Some names that have been suggested are:
> 
> linkag(4)
> agr(4)
> bond(4)   <- same as linux
> 
> Any suggestions!
> 
> 
> Andrew

One vote for agr(4) :)

Niki

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Received on Thu Apr 12 2007 - 19:47:01 UTC

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