[Bridge] Please help me to know MAX Forwarding Table Size in Linux Bridge

[Stephen Hemminger]

On Wed, 28 May 2008 23:03:29 -0700
"Ritesh Majumdar" <ritesh at proxim.com> wrote:

> 
> Hello,
> 
> Thanks for putting such a nice document in net on Linux bridge. actually
> I am working on integrating Linux bridge module with embedded OS which
> is running Linux. It is very important for me to know maximum number of
> MAC addresses Linux bridge can hold (I am using kernel 2.6.20).my
> requirement is about 10000 MAC addresses learning capacity in forwarding
> table.
> 
> Is it possible for kernel to learn 10000 MAC addresses ...??
> 
> Hope someone will help me out with this, after looking through web over
> two days I couldn't find any solution yet.
> 
> Many Thanks,
> Ritesh.
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The only limitation is kernel memory, so 10000 doesn't seem that large.
Easy enough to test it and find out (using a script or various DoS tests).