Deaggregation Disease

Jon Lewis jlewis at
Fri Jul 21 18:51:26 UTC 2006

On Fri, 21 Jul 2006 Valdis.Kletnieks at wrote:

> The big question is, of course, whether to upgrade a 6500 and keep it on
> life support, or bite the bullet and go for a whole new box.  How much time
> a -3bxl and careful filtering will buy you does depend heavily on where in
> the Internet you are - but I'm willing to bet that a good number of sites
> will go for the fork lift upgrade because there are *other* pressing things
> coming up that the 6500 won't do either.

With a 3bxl, you won't need careful filtering.  All the lower Sups top out 
at or slightly below 256k routes.  IIRC, the 3bxl claims to support 1M 
ipv4 routes.  Anyone else care to guess at how far off 235k routes is?

> I'll concede that Jon is at least partially right - *somebody* is going to
> be selling gear... ;)

Yeah...I posted recently on cisco-nsp that I think cisco's making a huge 
mistake not producing a Sup32-3bxl.  When the Sup2 can't cope with "full 
routes" anymore, I suspect the Sup720-3bxl will already have been 
obsoleted by some higher end Sup.  Then networks that would have bought 
Sup32-3bxl's for the route capacity, and don't really need the traffic 
capacity of the Sup720-3bxl will snap up Sup720-3bxl (and the required 
fan2s and power supplies) off the used market while bigger/richer networks 
upgrade to the Sup720-3bxl replacement.

  Jon Lewis                   |  I route
  Senior Network Engineer     |  therefore you are
  Atlantic Net                |
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