[c-nsp] Terminating lots of double-tagged vlans

[Mattias Gyllenvarg]

+1 ME3600X


On 23 May 2013 19:40, Pete Lumbis <alumbis at gmail.com> wrote:

> EVCs might do the trick for you. On the 6k/7600 it requires ES/ES+ modules
> I believe. ASR1k and me3600/3800 can do it out of the box.
>
>
> http://www.cisco.com/en/US/docs/ios-xml/ios/cether/configuration/xe-3s/ce-ether-vc-infra-xe.html
>
>
>
>
> On Thu, May 23, 2013 at 9:25 AM, Simon Lockhart <simon at slimey.org> wrote:
>
> > On Wed Apr 17, 2013 at 12:57:05PM -0700, Bruce Pinsky wrote:
> > > Simon Lockhart wrote:
> > > > I'm working on a project which uses GPON to connect tens of thousands
> > > > of properties in a fibre-to-the-home environment. Each property will
> > > > be handed off to me as a double-tagged vlan, one per property.
> > > > Obviously I don't want to manually create tens of thousands of
> > > > subinterfaces on a router, and I'm sure there's a better way of doing
> > > > this.
> > >
> > >
> >
> http://www.cisco.com/en/US/docs/ios/lanswitch/configuration/guide/lsw_ieee_802.1q.html#wp1027258
> > >
> >
> > Well, I started down this route in the lab, and all was looking promising
> > for
> > the first ONT, running IPv4, and terminating onto an ASR1k.... IPv6
> didn't
> > work, and a 2nd ONT wouldn't work.
> >
> > Then I found the caveat in the documentation - "Only PPPoE is supported
> on
> > ambiguous subinterfaces. Standard IP routing is not supported on
> ambiguous
> > subinterfaces."
> >
> > PPPoE isn't going to work in our environment, as the ONT won't do it, and
> > we're not mandating the use of a CPE router beyond the ONT (the user
> could
> > plug their PC direct into the ONT).
> >
> > Is there any other way to make "Standard IP routing" work on ambiguous
> > subinterfaces - i.e. using the "encapsulation dot1q 101 second-dot1q any"
> > configuration syntax?
> >
> > Thanks in advance,
> >
> > Simon
> > --
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*Mattias Gyllenvarg*
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