On Thu, 3 Nov 2005 18:17:37 -0500 Hai Wang <u2.ireland@xxxxxxxxx> wrote: > Stephen, > > Did you mean that the #255 limit is set in 2.4 Kernel, not > > bridge-utility? I am wondering why there is such limit, > > performance-related, or...? If I have to modify kernel 2.4 to exceed the > > limit, can you tell me where I should look at? Any drawback if I increase > > the limit up to 6000? > > Spanning tree protocol has limit on the protocol of 16 bits for port_id. originally 8 bits were for priority and 8 bits were for port number, but I added the cheat that vendors were using of using 2 bits of priority for port number. -- Stephen Hemminger <shemminger@xxxxxxxx> OSDL http://developer.osdl.org/~shemminger
