nanog mailing list archives
Re: Tier 2 ingress filtering
From: "Rajiv Asati (rajiva)" <rajiva () cisco com>
Date: Thu, 28 Mar 2013 23:45:19 +0000
Saku,
all these 100s of millions of ports configured correctly does not strike as practical goal.
It is practical, IMO, similar to configuring IP address/prefix (or QoS policies) on every port. In fact, what makes it easier is that uRPF can be part of the template that can be universally applied to every edge port.
Fixing 6000 non-stubby transit providers catering sufficiently small tails is much more practical goal.
Agreed. Cheers, Rajiv Sent from my Phone On Mar 29, 2013, at 7:36 AM, "Saku Ytti" <saku () ytti fi> wrote:
On (2013-03-28 15:47 -0400), Jay Ashworth wrote:You can't do it at top-level nor it's not practical to hope that some day BCP38 is done in reasonably many last-mile port.I don't know that that's true, actually; unicast-rpf does, as I understand it, most of the work, and is in most of the current firmware.Even if all of last mile devices support uRPF, which it does not, getting all these 100s of millions of ports configured correctly does not strike as practical goal. Fixing 6000 non-stubby transit providers catering sufficiently small tails is much more practical goal. -- ++ytti
Current thread:
- Re: Tier 2 ingress filtering, (continued)
- Re: Tier 2 ingress filtering Jay Ashworth (Mar 28)
- Re: Tier 2 ingress filtering Jon Lewis (Mar 28)
- Re: Tier 2 ingress filtering goemon (Mar 28)
- Re: Tier 2 ingress filtering William Herrin (Mar 28)
- Re: Tier 2 ingress filtering Jay Ashworth (Mar 28)
- Re: Tier 2 ingress filtering Paul Ferguson (Mar 28)
- Re: Tier 2 ingress filtering Jay Ashworth (Mar 28)
- Re: Tier 2 ingress filtering Jay Ashworth (Mar 28)
- Re: Tier 2 ingress filtering Jay Ashworth (Mar 28)
- Re: Tier 2 ingress filtering Saku Ytti (Mar 28)
- Re: Tier 2 ingress filtering Rajiv Asati (rajiva) (Mar 28)
- Re: Tier 2 ingress filtering Saku Ytti (Mar 28)
- Re: Tier 2 ingress filtering Jeff Kell (Mar 28)
- Re: Tier 2 ingress filtering William Herrin (Mar 29)
- Re: Tier 2 ingress filtering Patrick (Mar 29)
- Re: Tier 2 ingress filtering Alejandro Acosta (Mar 29)
- Re: Tier 2 ingress filtering William Herrin (Mar 29)
- Re: Tier 2 ingress filtering Alejandro Acosta (Mar 30)