Re: Static IP

On Thu, 6 Jun 2002, Andy Walden wrote:

> On Wed, 5 Jun 2002, Jay Hennigan wrote:
> >
> > As the ISP we can deal with them as we choose, static, DHCP, PPPoE, NAT
> > or whatever. We can even throw a bunch into a bridge group and give a
> > customer a big private ethernet LAN that never touches the Internet and
> > doesn't necessarily even run IP.
>
> Okay, which what happens when the gear they are using doesn't support
> bridged PVCs?

For the most part, the customer sees it as ethernet. Verizon has two
types of DSLAM in most COs. The earlier ones are Fujitsu which natively
aggregate onto a frame-relay circuit. The more recent ones are Alcatel,
natively aggregating onto ATM.

The customer is supplied with a DSL modem that has a 10-base-T ethernet
jack. As far as the customer is concerned it's raw ethernet frames through
the ATM/FR cloud, so if their gear supports 802.3 everything is happy.

If their gear doesn't support it, well, nothing works anyway.

Verizon's implementation and provisioning is kind of messy at times with
such things as building the customer to a Fujitsu DSLAM and shipping them
an ATM modem or vice-versa. We've also seen them claim that they don't
have facilities in a given CO when they have plenty of capacity on the
other platform. Having a good relationship with a clueful person at VZ
is essential as most of their web-based tools are somewhat broken.

Regardles of whether the customer is built to Fujitsu or Alcatel, they
interwork so that the ISP can take the aggregate either on FR or ATM.

ATM scales better but can be trickier to configure.

-- 
Jay Hennigan - CCIE #7880 - Network Administration - jay@west.net
NetLojix Communications, Inc.  -  http://www.netlojix.com/
WestNet:  Connecting you to the planet.  805 884-6323
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