On Mon, 22 Sep 2008 07:58:21 +0800 czj <linuxdemo@xxxxxxx> wrote: > Hi all, > I work on a SOC based on AMCC/glacier based on PPC460GT. ( > http://WWW.AMCC.com <http://micrel.com/page.do?page=product-info/sys_on_chip.jsp>) > This component has 4 network interfaces. > > Every one is connected to a PC. > > eth0 =>192.168.1.11 > eth1 => 192.168.1.22 > eth2 => 192.168.1.33 > eth3 => 192.168.1.44 You have layer 2 and 3 confused. Are you sure you don't intend to route (layer 3) rather than bridging. > I want to make a bridge with these 4 ports > > #brctl addbr br0 > > #ifconfig br0 192.168.1.20 netmask 255.255.255.0 > > #ifconfig eth0 0.0.0.0 up > > #ifconfig eth1 0.0.0.0 up > > #ifconfig eth2 0.0.0.0 up > > #ifconfig eth3 0.0.0.0 up > > # brctl addif br0 eth0 > > # brctl addif br0 eth1 > > # brctl addif br0 eth2 > > # brctl addif br0 eth3 > > #brctl stp on > > but my problem is that when I used the PC(which IP is 192.168.1.11/24) to ping other PCs, > > the ping reply time from 192.168.1.22 was about 1000ms; > the ping reply time from 192.168.1.33 was about 0.2ms; > the ping reply time form 192.168.1.44 was about 300ms; > > Why? and how to configure the 4 ethernet-ports glacier board to be a bridge or switch correctly? thanks a lot. Don't assign IP addresses to the ethernet devices, only one common address to the bridge. _______________________________________________ Bridge mailing list Bridge@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/bridge