nanog mailing list archives

RE: Banc of America Article


From: alex () yuriev com
Date: Mon, 27 Jan 2003 13:45:27 -0500 (EST)


Actually, I think too many assumptions were made.  

Let's simplify.  

We know UUNet traffic capabilities were reduced significantly.  Uunet
has many big customers.  Other big carriers had similar affects on their
networks, probably particularly at peering points.

We know many companies use public or private VPN services from major
carriers such as these, and that both VPN types may use public internet
carriers.

I think therefore that the only true conclusion we could say is that if
BoA's traffic was not prioritized, it therefore suffered collateral
damage primarily due to traffic not being able to get through between
ATM's and the central processing center.

Being someonewhat familiar with the design of ATM networks, I can tell you
that it is not correct. Your basic ATM gets two to three connections - one
being a data access line, the other being a regular alarm line. The data
access line is POTS, DS0 or, ISDN. The alarm line is POTS (the funny part is
that certain large banks when buying other banks forget what the other line
is used for and put a disconnect order on those creating lots of mess). The
transaction data is never supposed to travel on any non-dedicated network.

Alex


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