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[aprssig] Tier 2 Status

Steve Dimse steve at dimse.com
Thu Jun 22 10:35:44 UTC 2006


On Jun 22, 2006, at 2:41 AM, dick at kb7zva.com wrote:

> The single core system currently has 600 clients and uses 6.7Mbps  
> outbound.
> T2 has 932 clients and uses 1.2Mbps outbound. That's about 2/3's of  
> all APRS-IS
> clients on Tier 2, using 80% less bandwidth. So I'd be careful when  
> you say 'inefficient'.
> Do you honestly think that the core servers could handle another  
> 932 clients and be
> efficient?

I already said the three server core could not handle it today, but  
had the capacity of the core kept up with the demand, this could  
easily be handled.
>
> There is nothing logical about putting all your toys in one basket  
> no matter how large
> the basket is.

There are three redundant servers in the core now, not one, and were  
all the load handled at the core over the last few years there would  
be more. If you insist on calling the core a single basket though,  
the tier two design is still completely dependent on that one basket  
(made more fragile by the very existence of tier 2 because there are  
fewer core servers), but now one needs to load the eggs into a  
smaller basket before you cook them. The more you handle eggs, the  
more likely they will break.

> Steve has actually lightened up a bit... a little less hyper- 
> sensitive and rude. <g>

Unfortunately, the number of people who will take a discussion about  
the merits of two different design philosophies and turn it into a  
personal attack keeps growing. <g>

Steve K4HG






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