Date: Fri, 17 Dec 2010 15:00:12 -0800 From: Rudy <crapsh@monkeybrains.net> To: freebsd-net@freebsd.org Subject: Re: unicast flooding on bridge0 and odd DUP! ICMP packets Message-ID: <4D0BEB7C.2080506@monkeybrains.net> In-Reply-To: <4D0AAC30.1090202@monkeybrains.net> References: <4D0AAC30.1090202@monkeybrains.net>
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How much of the vlan/bridge stuff is off-loaded to the ethernet card? Would chaning out my em0 for an igb0 affect uni-cast flooding in any way? Rudy On 12/16/2010 04:17 PM, Rudy wrote: > > I am having issues when I add 3 vlans (all off of em1) to bridge0. > > [1] when I ping ips on 2 of the 3 vlans, I get a redirect from localhost > and then a dup > # ifconfig bridge0 10.7.0.1/16 > # ping 10.7.1.31 (which lives on vlan714) > PING 10.7.1.31 (10.7.1.31): 56 data bytes > 36 bytes from localhost (127.0.0.1): Redirect Host(New addr: 10.7.1.31) > Vr HL TOS Len ID Flg off TTL Pro cks Src Dst > 4 5 00 0054 af97 0 0000 3f 01 b6e4 10.7.0.1 10.7.1.31 > > 64 bytes from 10.7.1.31: icmp_seq=0 ttl=64 time=286.316 ms > 64 bytes from 10.7.1.31: icmp_seq=0 ttl=64 time=286.350 ms (DUP!) > > # ping 10.7.1.5 (which lives on vlan7) > PING 10.7.1.5 (10.7.1.5): 56 data bytes > 64 bytes from 10.7.1.5: icmp_seq=0 ttl=64 time=5.160 ms > 64 bytes from 10.7.1.5: icmp_seq=1 ttl=64 time=3.392 ms > 64 bytes from 10.7.1.5: icmp_seq=2 ttl=64 time=6.250 ms > > So, what would possible cause my localhost to spit out the redirect? > (the route is the same for both IPs: > arana-zebra> sh ip route 10.7.1.5 > Routing entry for 10.7.0.0/16 > Known via "connected", distance 0, metric 1, best > * directly connected, bridge0 > > arana-zebra> sh ip route 10.7.1.31 > Routing entry for 10.7.0.0/16 > Known via "connected", distance 0, metric 1, best > * directly connected, bridge0 > > > [2] When putting live traffic on the links, I saw a lot of unicast > traffic going over the wire. I had 'PRIVATE' set on all bridge members. > > Is anyone running a bridge with 50 vlan members? Do you see any unicast > flooding? (I added "switchport block unicast" to the vlan egree points > on the switches -- going to wifi antennas.) > > My goal: set up dhcpd router with a big pool -- spanning all the vlans > -- but keeping the vlan traffic separate (hence the PRIVATE on the > bridge members). > > Rudy > > _______________________________________________ > freebsd-net@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" >
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