nanog mailing list archives
Re: Inter-exchange media types
From: Paul A Vixie <paul () vix com>
Date: Thu, 25 Apr 1996 10:35:33 -0700
The problem for the major exchanges may soon be what to do when the gigaswitch runs out of bandwidth.
Right. I don't believe the 800Mb/s claim of the GIGAswitch's backplane, since I thought it was 3.5Gb/s or something. But either way, the bottleneck is going to be the 100Mb/s port speed, and the ISP backhaul. Even if we had a 200 port GIGAswitch with a 200*100Mb/s full cross bar backplane, we would soon reach the point where the individual 100Mb/s ports were just too full. And if we had 1000Mb/s Ethernet with a full cross bar switch in the middle, we'd discover that OC12 intercarrier backhaul is very difficult to get. As I've said before, I believe that this is going to push us in the direction of more and more NAPs so that everyone can do the hot potato routing thing as early and as often as possible. Many medium pipes will add up to the nec'y aggregate bit rate, with some great cost in complexity compared to a few fat pipes. Ceding the "core" to the people who own their own trenches and who can there- fore build out reasonable worldwide OC12 or OC48 nets is another approach but I'm not entirely comfortable with the transit rates they'd probably charge if their corporate officers knew they had a monopoly. I've chosen to leave my usual dire predictions about the inevitability of ATM out of this particular message; you've all heard it before, anyway. There ought to be a business opportunity in here somewhere.
Current thread:
- Inter-exchange media types Jon 'tex' Boone (Apr 24)
- Re: Inter-exchange media types Jeremy Porter (Apr 24)
- Re: Inter-exchange media types Erik Sherk (Apr 25)
- Re: Inter-exchange media types Curtis Villamizar (Apr 25)
- Re: Inter-exchange media types bmanning (Apr 25)
- Re: Inter-exchange media types Dorian Kim (Apr 25)
- Re: what to do when the gigaswitches run out of gas??? Mike O'Dell (Apr 25)
- Re: Inter-exchange media types Paul A Vixie (Apr 25)
- Re: Inter-exchange media types Andrew Partan (Apr 25)
- Re: Inter-exchange media types Michael Dillon (Apr 25)
- Re: Inter-exchange media types Jeremy Porter (Apr 24)
- Re: Inter-exchange media types ipasha (Apr 25)
- <Possible follow-ups>
- Re: Inter-exchange media types Wolfgang Henke (Apr 25)
- Re: Inter-exchange media types Vadim Antonov (Apr 25)
- Re: Inter-exchange media types Paul Ferguson (Apr 25)
- Re: Inter-exchange media types Paul Ferguson (Apr 25)
- Re: Inter-exchange media types k claffy (Apr 27)
- Re: Inter-exchange media types Hank Nussbacher (Apr 27)
- Re: Inter-exchange media types Curtis Villamizar (Apr 29)