vlan-request@xxxxxxxxxxxxxxx wrote: >Send Vlan mailing list submissions to > vlan@xxxxxxxxxxxxxxx > >To subscribe or unsubscribe via the World Wide Web, visit > http://www.lanforge.com/mailman/listinfo/vlan >or, via email, send a message with subject or body 'help' to > vlan-request@xxxxxxxxxxxxxxx > >You can reach the person managing the list at > vlan-owner@xxxxxxxxxxxxxxx > >When replying, please edit your Subject line so it is more specific >than "Re: Contents of Vlan digest..." > > >Today's Topics: > > 1. Bridging two vlans on a single interface don't work ( > kernel2.6.15, tg3 driver for Broadcom NetXtreme BCM5705M_2 ) > (a.gatta) > 2. Re: Bridging two vlans on a single interface don't work ( > kernel2.6.15, tg3 driver for Broadcom NetXtreme BCM5705M_2 ) > (Roy-Magne Mo) > 3. Re: Two VLANs with same IP (Rui Cristo) > 4. QoS, setting skb->priority (Rui Cristo) > > >---------------------------------------------------------------------- > >Message: 1 >Date: Wed, 03 May 2006 14:24:58 +0200 >From: "a.gatta" <a.gatta@xxxxxxxxxx> >Subject: [VLAN] Bridging two vlans on a single interface don't work ( > kernel2.6.15, tg3 driver for Broadcom NetXtreme BCM5705M_2 ) >To: vlan@xxxxxxxxxxxxxxx >Message-ID: <4458A11A.8070009@xxxxxxxxxx> >Content-Type: text/plain; charset=ISO-8859-1; format=flowed > >Dear List, >I am experiencing problems bridging two vlans on a linux box running debian. > >I have a single interface (eth0,Broadcom NetXtreme BCM5705M_2 with tg3 >module). > >This interface has a trunk to a catalyst switch. > > >I've created two virtual interface with vconfig: > >vconfig add eth0 608 >vconfig add eth0 609 > >At this point all is fully functional, I am able to see traffic on those >virtual interfaces and if I give them the ip stack I can use them. > >Then I decided two bridge the two virtual interfaces. > >So I created a bridge with brctl : > >brctl addbr br0 > >and I've added those virtual interfaces to the bridge : > >brctl addif br0 eth0.608 >brctl addif br0 eth0.609 > >Last thing I enable all the interfaces : > >ifconfig br0 up >ifconfig eth0.608 up >ifconfig eth0.609 up > >The first thing I noticed is that I cannot see any traffic on br0 >interface and also on the virtual interfaces. > >As far as I know the bridge code supports tagged packet but I am not >able to see any traffic on the interfaces. > >Moreover the tg3 module support natively vlan traffic. > >This is what I see on both br0 and virtual interfaces after I add them >to the bridge : > >14:23:22.539413 00:0a:b7:23:61:97 > 01:00:0c:cc:cc:cd SNAP Unnumbered, >ui, Flags [Command], length 50 >14:23:22.540865 00:0a:b7:23:61:97 > 01:00:0c:cc:cc:cd SNAP Unnumbered, >ui, Flags [Command], length 50 > >Any ideas ? > > > > > > >cisco > >------------------------------ > >Message: 2 >Date: Wed, 03 May 2006 17:44:11 +0200 >From: Roy-Magne Mo <rmo@xxxxxxxxxxxx> >Subject: Re: [VLAN] Bridging two vlans on a single interface don't > work ( kernel2.6.15, tg3 driver for Broadcom NetXtreme BCM5705M_2 ) >To: "Linux 802.1Q VLAN" <vlan@xxxxxxxxxxxxxxx> >Message-ID: <1146671052.29212.3.camel@xxxxxxxxxxxxxxxxxxxxx> >Content-Type: text/plain > >on den 03.05.2006 klokka 14:24 (+0200) skreiv a.gatta: > > >>Dear List, >>I am experiencing problems bridging two vlans on a linux box running debian. >> >>I have a single interface (eth0,Broadcom NetXtreme BCM5705M_2 with tg3 >>module). >> >>This interface has a trunk to a catalyst switch. >> >> >>I've created two virtual interface with vconfig: >> >>vconfig add eth0 608 >>vconfig add eth0 609 >> >>At this point all is fully functional, I am able to see traffic on those >>virtual interfaces and if I give them the ip stack I can use them. >> >>Then I decided two bridge the two virtual interfaces. >> >>So I created a bridge with brctl : >> >>brctl addbr br0 >> >>and I've added those virtual interfaces to the bridge : >> >>brctl addif br0 eth0.608 >>brctl addif br0 eth0.609 >> >>Last thing I enable all the interfaces : >> >>ifconfig br0 up >>ifconfig eth0.608 up >>ifconfig eth0.609 up >> >>The first thing I noticed is that I cannot see any traffic on br0 >>interface and also on the virtual interfaces. >> >>As far as I know the bridge code supports tagged packet but I am not >>able to see any traffic on the interfaces. >> >>Moreover the tg3 module support natively vlan traffic. >> >>This is what I see on both br0 and virtual interfaces after I add them >>to the bridge : >> >>14:23:22.539413 00:0a:b7:23:61:97 > 01:00:0c:cc:cc:cd SNAP Unnumbered, >>ui, Flags [Command], length 50 >>14:23:22.540865 00:0a:b7:23:61:97 > 01:00:0c:cc:cc:cd SNAP Unnumbered, >>ui, Flags [Command], length 50 >> >>Any ideas ? >> >> > > >Do you see the mac address of your switch on both of these vlans on the >cisco switch? A lot of (broken) switches will croak on traffic flowing >this way. > > > > > >------------------------------ > >Message: 3 >Date: Wed, 3 May 2006 13:46:11 -0300 (ART) >From: Rui Cristo <rui_alisson@xxxxxxxxxxxx> >Subject: Re: [VLAN] Two VLANs with same IP >To: "Linux 802.1Q VLAN" <vlan@xxxxxxxxxxxxxxx> >Message-ID: <20060503164611.44820.qmail@xxxxxxxxxxxxxxxxxxxxxxx> >Content-Type: text/plain; charset="iso-8859-1" > >The problem was solved using SO_BINDTODEVICE to both VLANs, thanks. > >Ben Greear <greearb@xxxxxxxxxxxxxxx> escreveu: > Ard van Breemen wrote: > > >>On Tue, May 02, 2006 at 11:06:49AM -0300, Rui Cristo wrote: >> >> >> >>>I have a problem to solve that is to create two VLANs, like >>>vlan10 and vlan20, and make them have the SAME IP address and I >>>want to create sockets for each. How can I bind the sockets to >>>each VLAN instead of binding them to its IP? If I bind with >>>it's IP I can't control wich VLAN to choose. >>> >>> >>IP binding is done on a system level. So it really doesn't matter >>if your IP is on lo or vlan*... >> >> > >You can actually tweak this by using policy-based routing and binding >to local IP and/or devices with sock-opts, and messing with the >/proc/sys/net/arp filter logic..but it takes a bit of work. > >Ben > > > Dear list, I found the problem. The switch puts in blocking state the two vlan : 3w0d: %SPANTREE-2-RECV_PVID_ERR: Received BPDU with inconsistent peer vlan id 608 on FastEthernet0/23 VLAN609. 3w0d: %SPANTREE-2-BLOCK_PVID_PEER: Blocking FastEthernet0/23 on VLAN0608. Inconsistent peer vlan. 3w0d: %SPANTREE-2-BLOCK_PVID_LOCAL: Blocking FastEthernet0/23 on VLAN0609. Inconsistent local vlan sh spanning-tree int fastEthernet 0/23 .... VLAN0608 Desg BKN*19 128.23 P2p *PVID_Inc VLAN0609 Desg BKN*19 128.23 P2p *PVID_Inc .... This is due to the interaction between PVST+ and CST ( on linux bridge ). This is the configuration on linux bridge : host:/proc/net/vlan# brctl show bridge name bridge id STP enabled interfaces br0 8000.000802e842b7 yes eth0.609 eth0.608 The int fast 0/23 is a dot1q trunk with native vlan 1. It there any way to overcome this issue other than disable spanning tree on the switch port ? Regards
