Re: [Idr] WGLC on draft-ietf-idr-as-private-reservation-00

[Brian Dickson <[e-mail]>]

Sent from my iPad

On Nov 29, 2012, at 1:19 PM, Christopher Morrow <[e-mail]> wrote:

> On Thu, Nov 29, 2012 at 1:01 PM, Tony Li <[e-mail]> wrote:
>> 
>> On Nov 29, 2012, at 9:50 AM, Jared Mauch <[e-mail]> wrote:
>> 
>>>> Internet folks will say "Do not trash our environment"
>>> 
>>> As an operator, I feel this is a fair thing for me to say. :)
>> 
>> 
>> Indeed it is.
>> 
>> However, I think it's also fair to point out that allocating a chunk from a large namespace and effectively taking out of the big I environment doesn't do much to trash it.
> 
> because private asns don't leak?
> route-views>sho ip bgp regex _64..._
> <snip>
>   Network          Next Hop            Metric LocPrf Weight Path
> *  27.123.19.0/24   195.66.232.239                         0 5459 38082 64549 ?
> *  41.76.104.0/21   196.7.106.245            0             0 2905 11845 64525 i
> *  41.90.0.0/16     114.31.199.1             0             0 4826 8966
> 33771 65535 64555 64555 33771 i
> *                   194.85.40.15                           0 3267 2603
> 8966 33771 65535 64555 64555 33771 i
> *  41.209.32.0/19   164.128.32.11                          0 3303 174
> 9129 9129 9129 9129 {4558,15808,64520} i
> *  131.124.1.0/24   69.31.111.244            0             0 4436 4323 64778 i
> *  131.124.2.0/24   69.31.111.244            0             0 4436 4323 64778 i
> *  131.124.3.0/24   69.31.111.244            0             0 4436 4323 64778 i
> *  131.124.4.0/24   69.31.111.244            0             0 4436 4323 64778 i
> *  131.124.5.0/24   69.31.111.244            0             0 4436 4323 64778 i

If the "private use" ASNs were NOT from a well-known range, you would detect this how?

This actually does a lot to demonstrate the usefulness of the old range, and of having a new range larger in size.

If 192.168.0.0/16 was the only RFC 1918 space, the value of 10.0.0.0/8 might not be as clear.
The analogy is pretty clear.

Not only is there value in more space, there is value in distinct ranges.

Having non-globally-unique space that is well known allows third parties to detect leaks, filter, and make permanent bogon filters.

In case it is not obvious:

Support (strongly).

The "first amendment" argument analogy holds: it isn't necessary to agree (or use in this case) to support the right to speak (use).

Brian