>John Nemeth said,
>On Jul 6, 1:28pm, "Brian Lodwick" wrote:
>}
>} I have heard many tales of how ATM will explode soon, will be partenered
>} perfectly with DSL, and everyone will implement it, but I just haven't seen
>} it. I like the idea of improving technologies your engineering and support
>} staff are familiar with (Not counting new technology with old names like
>} IPv6). I hope this is able to work out, and isn't too far down the road.
>
> IPv6 is coming. There are just too many shortcomings in IPv4 that
>can't be solved using hacks. The biggest being the lack of address
>space. It really isn't a question of "if" but rather "when".
Some of the "killer apps" that have moved IPv6 into high gear include
the decision by the third generation wireless people to use V6 as
their basic protocol, which, as we speak, is being built into
handsets.
>
>} Is there any talk of using smaller tags in IP to create big pipes similar to
>} ATM's VCI's so that you could lower the ip address & mask-lookup processor
>} overhead on backbone IP routers? I think this would be a neat idea. Even
>
> You've just described MPLS.
>
>} though the CAM table is fast the router must still read the entire address
>} and mask. Small pipe identifiers could be inserted into the ip header and
>} extracted at the gateways and lookup would be lowered. Like xtags on VLANS.
>
> IP headers are only 20 bytes and aren't much of a problem. The
>real problem is with compression, encryption, access lists, etc. Check
>out this URL for a study on what happens when access lists are used:
>http://www.nwc.com/1004/1004ws2.html
>
>}-- End of excerpt from "Brian Lodwick"
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