Date: Tue, 21 Aug 2007 16:34:27 +0200 (CEST) From: Mohacsi Janos <mohacsi@niif.hu> To: Tom Judge <tom@tomjudge.com> Cc: freebsd-hackers@freebsd.org Subject: Re: vlan taggging on etherchannel Message-ID: <20070821162824.Q40614@mignon.ki.iif.hu> In-Reply-To: <46CAC308.7070509@tomjudge.com> References: <20070821113922.B40614@mignon.ki.iif.hu> <46CAC308.7070509@tomjudge.com>
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Hi Tom,
Thanks! Very helpful informations!
Janos Mohacsi
Network Engineer, Research Associate, Head of Network Planning and Projects
NIIF/HUNGARNET, HUNGARY
Key 70EF9882: DEC2 C685 1ED4 C95A 145F 4300 6F64 7B00 70EF 9882
On Tue, 21 Aug 2007, Tom Judge wrote:
> Mohacsi Janos wrote:
>> Dear All,
>> What is the recommended way to configure vlan interfaces on
>> etherchannel bonded interfaces in a failure mode. I found, that
>> etherchannel is supported by ng_fec(4) (but not exactly what I want) and
>> also found that there two? way of configuring vlans: vlan(4) and
>> ng_vlan(4). But I did not found any description or configuration snippet to
>> configure both preferentially via /etc/rc.conf neither in FreeBSD
>> 6.x-stable, neither in FreeBSD-7.0-current. What I want to achieve:
>>
>> [switch1]-----GE---bge0----\ /----vlan100
>> }=={-----vlan101
>> [switch2]-----FE---bge1----/ \----vlan102
>> \---vlan103
>>
>>
>> I would like to prefer all the vlans via bge0 with GE towards switch1. And
>> use only bge1 in case of switch1 or bge0 link failure.
>>
>> I could use bond on Linux for this purpose. How to achieve similar setup?
>>
>
>
> You may want to take a look at if_lagg, it supports EtherChannel (AKA fec),
> LACP and failover modes (Which is what you would need). It is available in
> RELENG_6 and Current.
>
> You may wish to take a look at:
>
> http://nzfug.nz.freebsd.org/nzfug/HandbookUpdates/NetworkAggregation
>
> rc.conf entries for the example might look like (not tried this):
> cloned_interfaces="lagg0"
> ifconfig_lagg0="laggproto lacp laggport fxp0 laggport fxp1"
>
>
> As for the vlan interfaces we use if_vlan and rc.conf snippets look as
> follows:
>
> cloned_interfaces="vlan1 vlan2"
> ifconfig_vlan1="inet x.x.x.x/24 vlan 1 vlandev bge1"
> ifconfig_vlan2="inet x.x.x.x/24 vlan 2 vlandev bge1"
>
> Putting these to together for you use might look like this:
>
> cloned_interfaces="lagg0 vlan100 vlan101 vlan102 vlan103"
> ifconfig_lagg0="laggproto failover laggport bge0 laggport bge1"
> ifconfig_vlan100="inet x.x.x.x/24 vlan 100 vlandev lagg0"
> ifconfig_vlan101="inet x.x.x.x/24 vlan 101 vlandev lagg0"
> ifconfig_vlan102="inet x.x.x.x/24 vlan 102 vlandev lagg0"
> ifconfig_vlan103="inet x.x.x.x/24 vlan 103 vlandev lagg0"
>
>
> Tom
>
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