[Bridge] Re: Adding same physical port to multiple bridges
shemminger at osdl.org
Wed Jan 28 10:01:06 PST 2004
On Tue, 27 Jan 2004 17:10:43 -0800
Abhijit Kumbhare <abhijitk at nortelnetworks.com> wrote:
> Is there any particular reason why the same physical port cannot be
> added to multiple bridges? Is it because of STP?
Not just STP, but all the data structures in the code are set up
1-N. For example, there is a pointer in the netdevice structure that
contains the bridge to handle the received packet. What would it mean
to be part of multiple bridges? Would received packets be process N times
by each bridge?
> If I am not using STP - can I change the code to have the same physical
> port in 2 VLANs? Is that a safe change?
Probably not. What are you trying to do? Might to be bridge the
physical LAN and do any filtering based on tag using bridge-filtering
Stephen Hemminger mailto:shemminger at osdl.org
Open Source Development Lab http://developer.osdl.org/shemminger
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