[j-nsp] tagged traffic on EX access port

[Jonathan Lassoff]

Excerpts from Malte von dem Hagen's message of Wed Dec 23 10:23:45 -0800 2009:
> what exactly do you want to do? It's not yet clear to me.
> 
> Anyway, you seem to mix up "vlan-tagging", which is a JunOS-Option for L3-ports,
> and "port-mode trunk", which does quite the same for L2-ports (below "family
> ethernet-switching"). On the EX, you can of course configure a trunk-port with
> just one VLAN, if that's what you want do do.

This is the right way to configure 802.1Q trunks on EX'es.

For example, from an EX4200:

------------------------------------------------------
jof at ex1.sfo2> show configuration interfaces xe-0/1/0 
unit 0 {
    family ethernet-switching {
        port-mode trunk;
        vlan {
            members [ foo bar ];
        }
    }
}
------------------------------------------------------

--j