Hi Douglas,
Just FYI I have tried to capture most common use cases of communities and
register them as part of a wide-community effort in IANA.
https://tools.ietf.org/html/draft-ietf-idr-registered-wide-bgp-communities-02
That draft is pending standardization of wide-communities itself.
You are
Mark,
> The standard already exists... "NO_EXPORT".
I don't think this is the ask here.
Today NO_EXPORT takes no parameters. I think it would be of benefit to all
to be able to signal NO_EXPORT TO ASN_X in a common (std) way across all of
my peers connected to ASN_X. Moreover policy on all vendo
Mark,
This does not require any more trust for say directly connected peers more
then today when you publish communities on the web page.
It is not about opening up your network. It is about expressing your policy
in a common way in the exact say amount as you would open up your network
today.
N
Mark,
On last point yes. The entire idea behind flow spec is to work inter-as to
mitigate DDoS as close to a source as possible.
And if you validate against advertising reachability what's the problem ?
And as far as wide they just let you structure your community in a common
way. It is both to
Mark,
Nope .. it is the other way around.
It is all easy if you look from your network centric view.
But if I am connected to 10 ISPs in each POP I have to build 10 different
egress policies, each embedding custom policy, teach NOC to understand it
etc...
I think if there is a defined way to ex
And use of BGP without IGP left and right when even today bunch of DCs can
do just fine with current IGPs scaling wise is IMO not a good thing.
Thx
R.
On Wed, Sep 9, 2020, 10:55 Jeff Tantsura via NANOG wrote:
> I don’t think, anyone has proposed to use ‘’reserved ASNs” as a BCP,
> example of “a
>
> Well, the proposed de facto standard is only useful for what we need to
> signal outside of the AS.
That's not quite true.
See the entire idea behind defining a common mechanism for signalling
policy in communities in a flexible way for both intra and inter-domain use
is to help you to use t
It's not about numbers ... it's about ability to uniformly express policy
with chain of arguments.
See even with large communities you can define a policy with an
unstructured parameter and single action then you need to put it on all of
your boxes to act upon.
Is it possible to perhaps express i
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