- Bird-users - Mailing Lists

Community lists and ~ operator
by Alexander Shikoff 14 Sep '10

14 Sep '10

Hello, I have a problem with implementing following logic: if route has any of communities 31210:0 ... 31210:65535 then do nothing else add community 31210:31210. I tried next control: if ! ( (31210,*) ~ bgp_community ) then { bgp_community.add((31210,31210)); } print bgp_community; but without success: bird> configure Reading configuration from /usr/local/etc/bird.conf /usr/local/etc/bird.conf, line 61: syntax error Any ideas? Thanks in advance! -- MINO-RIPE

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Some import/export filters
by Alexander Shikoff 06 Sep '10

06 Sep '10

Hello, is it possible in filter to delete all communities except ones which are stored in pre-defined list? Thanks in advance! -- MINO-RIPE

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Invalid attribute flags: d008011000000c
by Arnold Nipper 06 Sep '10

06 Sep '10

Hi, anyone able to decode this into something meaningfull? 2010-09-06 14:53:40 <RMT> RXXX_YYY: Received: Invalid attribute flags: d008011000000c TIA and best regards, Arnold -- Arnold Nipper / nIPper consulting, Sandhausen, Germany email: arnold(a)nipper.de phone: +49 6224 9259 299 mobile: +49 172 2650958 fax: +49 6224 9259 333

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Malformed AS Path
by Arnold Nipper 06 Sep '10

06 Sep '10

Hi, anyone abel to decode this? 2010-09-06 13:02:53 <RMT> RYYY_XXX: Received: Malformed AS_PATH: 400208020330651ac2ace7 TIA and best regards, Arnold -- Arnold Nipper / nIPper consulting, Sandhausen, Germany email: arnold(a)nipper.de phone: +49 6224 9259 299 mobile: +49 172 2650958 fax: +49 6224 9259 333

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Memory seems to grow endless
by Stéphane Bunel 03 Sep '10

03 Sep '10

Hi there, I'm working on a use case with two routers (foundry) emiting RIPv2 messages in multicast over an ethernet link and one Ubuntu/Linux/64 server with BIRD configured as a quiet RIP listener. Configuration is simple and working well. But as you can see below, BIRD seems to eat memory after each message it receive (+4K after receiving 2*3 RIP paquets). Memory used by BIRD seems to grow endless. I' cant say if it's a bug but it sound like. On the mailing list, i've found a thread of three messages speaking about things between libc and kernel. But I'm not sure this is related. Do you have notice this behavior and do you have find a solution ? Regards, Stephane. at 11h44: root@srtools:~# /etc/init.d/bird start root@srtools:~# birdc BIRD 1.2.4 ready. bird> show memory BIRD memory usage Routing tables: 25 kB Route attributes: 4592 B Protocols: 26 kB Total: 81 kB at 12h15: bird> show memory BIRD memory usage Routing tables: 325 kB Route attributes: 4592 B Protocols: 34 kB Total: 390 kB at 12h54: bird> show memory BIRD memory usage Routing tables: 682 kB Route attributes: 4592 B Protocols: 34 kB Total: 747 kB at 14h01: bird> show memory BIRD memory usage Routing tables: 1311 kB Route attributes: 4592 B Protocols: 34 kB Total: 1376 kB Config. file /etc/bird.conf log "/var/log/bird.log" { error }; define NEED_MASQUERADE = 1; protocol kernel { learn; # Learn all alien routes from the kernel (ex: manualy inserted) persist; # Décommenter en production. Permet de ne pas flusher les routes export all; # Default is export none } protocol device { } protocol static { export all; } protocol direct { export all; } filter rip_select_gateway ip set wks; { wks = [ 172.19.127.252, 172.19.127.253 ]; if !(from ~ wks) then reject " !REJECT! Talker ", from, " is not in the WELL_KNOWN_SOURCES"; if net ~ [ 0.0.0.0/0 ] then { if NEED_MASQUERADE != 0 then { if rip_metric = 14 then accept " ACCEPTING MASQUERADE GW"; else reject " REJECTING NON-MASQUERADE GW"; } else { if rip_metric = 14 then reject " REJECTING MASQUERADE GW"; else accept " ACCEPTING NON-MASQUERADE GW"; } } else accept; } protocol rip { description "Listen only RIPv2 routes"; export none; import filter rip_select_gateway; interface "eth0" { mode quiet; }; }

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[OSPF] BIRD <> Mikrotik checksum
by Maciej Drobniuch 02 Sep '10

02 Sep '10

Hi! I have a problem with binding bird with mikrotik router os. The RouterOS says: Discarding packet: wrong checksum. In the bird manual we can find "The RFC says that a router should check the checksum of every LSA to detect hardware problems. BIRD does not do this to minimalize CPU utilization." Does the BIRD send checksum in OSPF That is my OSPF config: protocol ospf LandtechOSPF { tick 2; rfc1583compat yes; area 0.0.0.0 { stub no; interface "eth1" { hello 10; retransmit 5; cost 10; transmit delay 5; dead 40; dead count 40; wait 50; type broadcast; }; }; } Thanks for help! -- Pozdrawiam! Maciej Drobniuch

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Checking if bgp_next_hop matches bgp neighbor
by Peter Lieven 02 Sep '10

02 Sep '10

Hi, just wondering what the correct way is to filter if the advertised bgp_next_hop matches the neighbor address in a filter. Would if from != bgp_next_hop then reject; do the trick, or do I have to define a function as inbound filter and pass the neighbor address as a parameter? Thanks, Peter # Kind Regards/Mit freundlichen Gruessen # # PEERING GmbH - Devision ECIX # Lindenallee 27, 14050 Berlin, Germany # # Geschaeftsfuehrer: Stefan Wahl, Peter Lieven # Amtsgericht Charlottenburg, HRB 97752B, USt-Id-Nr: DE2746301838 # # Web: http://www.ecix.de/ # Phone: +49 30 81495450 # Fax: +49 30 81495459

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BGP configuration HELP
by Sami Halabi 01 Sep '10

01 Sep '10

Hi, I'm new to bird, and I need help in configuring my DUAL homed BGP. here is the infrastructure: AS100 is a transit i'm connected to - this transit allows only traffic that was originated by one of its peering AS's to flow over it (IE it doesn't allow traffic destinated to as400 which isn't a peering member, not even through any other memebr, for that reason I'm connected also to AS200), this connection has high bandwidth. AS200 is a member connected to AS100 also, and also to outside AS's (to the world), it should destinate traffic to me according to: 1) if this traffic originated by a member in AS100 or by itself to route throgh AS100, 2) otherwise to route directly through AS300. AS300 is my AS that is connected to AS100 and AS200. i need help in configuring BGP 200 and BGP 300 so that i can do the routing policy as described above. Thanks in advance for your help, Sami

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BIRD BGP community?
by Maciej Drobniuch 31 Aug '10

31 Aug '10

Could you tell me where I can find documentation about how to prepend bgp traffic, examples and other useful stuff to get familiar with the BIRD environment ? -- Pozdrawiam! Maciej Drobniuch

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Re: Weird behavior under FreeBSD
by Jiří Kubíček 24 Aug '10

24 Aug '10

Hello. >>> Load of the machine jumps to 2.00 and birdc respond's very slowly. It takes minutes to "display protocols" and it becomes worse and worse. >> The CPU was 100% busy? In kernel or in userspace (BIRD)? (see 'top') > > I still had top output in history: > > last pid: 76966; load averages: 2.00, 2.00, 2.00 up 3+09:57:45 12:01:27 > 64 processes: 2 running, 62 sleeping > CPU: 0.0% user, 0.0% nice, 25.2% system, 0.0% interrupt, 74.8% idle > Mem: 77M Active, 56M Inact, 366M Wired, 292K Cache, 418M Buf, 3445M Free > Swap: 4096M Total, 4096M Free FYI under normal conditions top looks like: last pid: 2033; load averages: 0.00, 0.00, 0.00 up 0+02:39:36 12:23:06 27 processes: 1 running, 26 sleeping CPU: 0.0% user, 0.0% nice, 0.1% system, 0.1% interrupt, 99.8% idle Mem: 169M Active, 30M Inact, 310M Wired, 24K Cache, 149M Buf, 3443M Free Swap: 4096M Total, 4096M Free This computer has one quad-core CPU, to 25% systems meens 100% on 1 core IMHO. S pozdravem Jiri KUBICEK -- KRAXNET s.r.o. - www.kraxnet.cz Kamenicka 26, 170 00 Praha 7 ---

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