North American Network Operators Group

Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical

Re: IPv4 multihomed sites statistics

  • From: Owen DeLong
  • Date: Tue May 15 12:29:25 2007


Also, is there a way to find the average number of peers that these sites
multihome with? If not, how large is it in general?

Difficult to say, and lots of people have tried. Route-Views @ Oregaon, CAIDA, RIPE RIS, and many others has some data you might be able to morph into that.


The first problem is to identify what defines a site.

Is an ASN a site? Would all of AS701 be considered a single site? If not,
then, how can one identify a site. Is a prefix a site? What about prefixes
that are aggregated and span multiple locations all over the world?


There is no clear correlation between routing data and any logical definition
of the term site. Is a site a building, a campus, the collection of buildings
networked in a given metro. area? There isn't even a clear definition of the
term site, really.


If you can define what it is you want to measure, then, perhaps it can be
measured. However, the question as stated cannot be measured because
the terms used are not sufficiently defined as to allow measurably
correct meaning.


Owen



Attachment: smime.p7s
Description: S/MIME cryptographic signature