Re: Incoming SSDP UDP 1900 filtering

[Sean Donelan <sean () donelan com>]

On Mon, 25 Mar 2019, Bryan Holloway wrote:
> And we are careful to ensure that any updates are pushed to all edge 
> ingresses.

BGP-edge filters don't help with customer-to-customer packets within the 
same ISP BGP autonomous area. So you would need CPE customer-edge filters 
anyway. A small ISP might be able to handle individual customer filters on 
their backbone routers, but that way leads to insane network engineers.

See Barry Greene's page for the list of all the pro's & con's of different 
alternatives.  There are very few new ideas, just new people rediscovering 
old ideas.