[rbridge] IS-IS per VLAN ?

[Joe Touch]

Harald Tveit Alvestrand wrote:
> 
> --On søndag, september 25, 2005 12:22:00 -0700 Joe Touch <touch at ISI.EDU> 
> wrote:
> 
>>End nodes. I would expect bridges to be 1/5 of that number, roughly.
> 
> ah - then the numbers are much more compatible!
> 
> But that 1/5 number..... Why?

My guess. No reason, no computational logic. Just an estimate.

> When I'm in big buildings, I usually see these fat bundles of Cat5 running 
> from the panels in the offices to a central switching closet somewhere - 
> 10, 100 or even 1000 ports off the same switch.
> 
> In an 100:1 scenario, a 1000-end-node L2 network would have 10 bridges; in 
> a 5:1 scenario, it would have 200 bridges. That makes an obvious difference 
> to how far we have to make sure TRILL scales.

Agreed.


Joe

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