Tier 2 ingress filtering

Thu Mar 28 17:55:12 UTC 2013

On Thu, Mar 28, 2013 at 01:47:45PM -0400, Valdis.Kletnieks at vt.edu wrote:
> On Thu, 28 Mar 2013 17:16:48 -0000, bmanning at vacation.karoshi.com said:
> >
> > is there a clear understanding of  "the edge" in the network operations
> > community?  in a simpler world, it was not that difficult, but interconnect
> > has blossomed and grown all sorts of noodly appendages/extentions.  I fear
> > that edge does not mean what you think it means anymore.
> 
> For 5 9's worth of eyeball networks hanging off consumer-grade ADSL and cable
> connections, it's still the edge and still trivially filterable.    If that's a
> problem, the ISP can upsell a business-class connection that doesn't filter. ;)
> 

	5 9s?  I'll go w/ big, but this seems a stretch to me.
	if true (it might be), then  filtering ought be done and
	catch the delta.  I still posit a baseline that does not
	fit this lowhanging fruit... (trill networks, L2 transparent
	bridging,  L2-L3-VPNs, etc.)

/bill