Question regarding vlans and lagg

[Louis Kowolowski]

On Sep 12, 2009, at 4:48 PM, Marat N.Afanasyev wrote:

> * PGP - S/MIME Signed by an unverified key: September 12, 2009  
> 4:48:19 PM
>
> Svein Skogen (listmail account) wrote:
>> -----BEGIN PGP SIGNED MESSAGE-----
>> Hash: SHA1
>> Can the vlan "vlandev" be a lagg port of multiple physical interfaces
>> (for redundancy)?
>> //Svein
>
> i think that you should try the following:
>
> 1. join two ports on switch to trunk, say vport1
> 2. assign allowed vlans to this vport1
> 3. create lagg0 on freebsd
> 4. create vlan interfaces on freebsd using vlandev lagg0
>
> and i suppose it just should work ;)
>
You're looking for something along these lines:
cloned_interfaces="lagg0 vlan0 vlan1"
ifconfig_em0="up"
ifconfig_em1="up"
ifconfig_lagg0="laggproto failover laggport em0 laggport em1 up"
ifconfig_vlan0="vlan 2 vlandev lagg0 up"
ifconfig_vlan1="vlan 3 vlandev lagg0 up"
ifconfig_vlan0_alias0="inet 192.168.1.41/24"
ifconfig_vlan1_alias1="inet 172.16.0.20/24"

This will give you failover for your lagg(8) interface, I believe you  
can also use something like etherchannel.
--
Louis Kowolowski                                louisk at cryptomonkeys.org
Cryptomonkeys:                      http://www.cryptomonkeys.org/~louisk

Making life more interesting for people since 1977