[j-nsp] Re: VLAN tagging

[Thomas Salmen]

> 
> You should fix that with:
> 
> set int fe-0/0/1 unit 0 vlan-id 0
> set int fe-0/0/1 unit 100 vlan-id 100
> set int fe-0/0/1 unit 200 vlan-id 200

Hmmm - I've actually tried this as well. It commits okay, but no traffic is
passed on the 'vlan 0' interface.

Also, the docs tell me this:

"VLAN ID 0 is reserved for tagging the priority of frames."

Quite what this means isn't clear, I'm not really an expert on these things.
I'm guessing that the end result is not going to be what I'm after, though.


> 
> Regards,
> --
> Nuno Vieira
> NFSi - Soluções Internet, Lda.
> Chief Technical Officer


Cheers,
Thomas

> 
> Office Phone  : +351 244 145615
> Mobile Phone  : +351 91 6184656
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> 
> 
> Craig Pierantozzi wrote:
> > VLAN tagging is set on the physical and then
> > you break it into logical units on the M series.
> > You shouldn't be able to do this without a commit
> > error:
> >
> > ---snip---
> > router# show interfaces fe-0/0/1
> > vlan-tagging;
> > unit 0 {
> >     family inet {
> >         address 192.168.1.1/30;
> >     }
> > }
> > unit 100 {
> >     vlan-id 100;
> >     family inet {
> >         address 10.100.100.1/30;
> >     }
> > }
> > unit 200 {
> >     vlan-id 200;
> >     family inet {
> >         address 10.200.200.1/30;
> >     }
> > }
> >
> > [edit]
> > router# commit check
> > [edit interfaces fe-0/0/1]
> >   'unit 0'
> >      VLAN-ID must be specified on tagged ethernet interfaces
> > error: configuration check-out failed
> >
> > ---snip---
> >
> > regards
> > -Craig
> >
> > * Thus spake Thomas Salmen (tsalmen at orcon.net.nz):
> >
> >
> >>Hello,
> >>
> >>On a Cisco router, it is possible to do this:
> >>
> >>interface FastEthernet4/0
> >> ip address 192.168.1.1 255.255.255.252
> >>!
> >>interface FastEthernet4/0.100
> >>encapsulation dot1Q 100
> >> ip address 10.100.100.1 255.255.255.252
> >>!
> >>interface FastEthernet4/0.200
> >>encapsulation dot1Q 200
> >>ip address 10.200.200.1 255.255.255.252
> >>
> >>That is, add VLAN-tagged logical subinterfaces to a non-tagged physical
> >>interface.
> >>
> >>Does anyone know if this can be duplicated on an M-series?
> >>
> >>Cheers,
> >>Thomas
> >>
> >>
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