[nsp] GE aggregation for last mile Ethernet

[sthaug at nethelp.no]

> Q-in-Q has been internally discussed to solve scaling issues, but it
> places some responsibility for connectivity back on the customer.  It
> has the potential to become a troubleshooting nightmare (with the
> service provider's business opportunities at risk) even though it may be
> the customers problem.
> 
> Is anyone using Q-in-Q for customer facing ports?

To a limited degree, yes. And it's working well for us.

We don't see Q-in-Q being all that different from regular L2 when it
comes to troubleshooting - it's a pain in any case.

Steinar Haug, Nethelp consulting, sthaug at nethelp.no