[AusNOG] PPC-1 Experience?

[Bevan Slattery]

> -----Original Message-----
> From: ausnog-bounces at lists.ausnog.net [mailto:ausnog-
> bounces at lists.ausnog.net] On Behalf Of Lincoln Dale
> Sent: Tuesday, 21 September 2010 10:59 AM
> >> Was wondering, does anyone here have some numbers for the latency
of
> >> US transit across PPC-1?
> 
> per
> <http://www.pipeinternational.com/index.php?option=com_content&view
> =article&id=5&Itemid=45>, PPC-1 cable distance is "approximately
6900km".
> i'd imagine that includes quite a few spurs so actual distance is
likely
> hundreds of km less than that.  lets call it 6500km for example.  that
gets you
> Sydney to Guam.

We use OADM-BU's (Optical Add/Drop Multiplexing Branching Units) on
Fibre Pair #1 meaning that optical paths between Sydney and Guam are not
affected by the spurs.  It's even more straight forward on Fibre Pair #2
as there are no OADM-BU's included on that pair and as such it is a
purely Sydney to Guam express fibre pair.

> from Guam you have many choices in how you then get to mainland USA.
> likely the shortest path would be Guam to Japan to US West Coast.

The shortest path from Guam is on AAG which goes Guam-Hawaii-US mainland
direct.  Latency is considerably less than the Japan to US route and
quite comparable to SX (yes it's longer, but not that much, particularly
on the northern path of SX.  It is a single path to Guam.  It is a
(slightly) longer route to the US.  It is however a much, much shorter
route to Asia than SX.

It depends on your needs and your views of where bandwidth supply and
apps will be driven over the next few years.

Cheers

[b]