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

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

[Ritesh Majumdar]

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.

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

[Ritesh Majumdar]

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.

Re: [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@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.
> _______________________________________________
> Bridge mailing list
> Bridge@lists.linux-foundation.org
> https://lists.linux-foundation.org/mailman/listinfo/bridge

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).