Neighbor lost on interface flap

2012-11-30 Thread Simone Morandini
Hi guys, we use two machines running BIRD v. 1.3.8 as a bgp route-server on our IXP peering lan, and I noticed an apparently strange behavior: we had to reload the switch module on which our route server is connected, but after that, all v4 neighbors were showing "Error: neighbor lost", while

No supported AFI/SAFI

2012-05-04 Thread Simone Morandini
Hello list, as per the subject, I have a specific peer whose BGP session is not stable. It goes from Established to Idle with this error from the birdc prompt: "Received: No supported AFI/SAFI". The logfile says: 03-05-2012 22:09:47 : State changed to up 03-05-2012 22:09:50 : Received: Malf

Re: Neighbor lost for bird6

2012-02-23 Thread Simone Morandini
Stefan Jakob wrote: Am 23.02.12 13:17, schrieb Simone Morandini: Any clue on what could be the cause? Can you please check, if your route for the peering lan is still on your interface? do you mean if the route-servers lost connectivity towards the peering lan? After stopping

Neighbor lost for bird6

2012-02-23 Thread Simone Morandini
Hi all, I'm facing a weird problem: we run BIRD with identical configuration on 2 different servers, both connected on the same peering lan. We had "Error: Neighbor lost" error message for all the IPv6 bgp speakers, on both machines, while the v4 deamon had no problems. Issuing a "kill -s HUP

Again on communities...

2012-02-01 Thread Simone Morandini
Hi guys, one question (again) on communities: consider the following filtering function, applied on pipe protocols (no filtering on bgp protocol): function bgp_out(int peeras) { if !(source = RTS_BGP) then return false; if (0, peeras) ~ bgp_community then return false;

Re: Questions on community handling

2011-10-21 Thread Simone Morandini
Hi Stefan, show route all where (0,65333) ~ bgp_community thanks for the quick reply.. So if I'm not getting any output with this command, I should deduce that the member is not actually sending the community to the RS, right? To be more, specific, this member doesn't want to advertise i

Questions on community handling

2011-10-21 Thread Simone Morandini
Hi all, I have a couple of basic questions regarding communities: - is the "interpret communities switch" command meant only for well-known communities or for any community sent to the RS? - how can I see from birdc if a member is sending a specific community to the RS? "sh route where (()) ~

Re: Check on routes announced by peer

2011-02-14 Thread Simone Morandini
Hi all, did you check manually that these networks would really pass all your filters (as-path, prefix, whatever you are applying). thanks for the suggestion, the problem was exactly this: I was mistakenly building the configuration file, so the networks listed there were similar but diff

Re: Check on routes announced by peer

2011-02-09 Thread Simone Morandini
Hi all, In the scenario where filters was applied on pipes, not on BGP protocols, all received routes can be viewed via CLI: show route protocol table . apologies for "upping" my thread, but I'd like to solve this issue... With the above suggested command, "show route protocol table ",

Re: Check on routes announced by peer

2011-02-01 Thread Simone Morandini
Mikhail A. Grishin wrote: In the scenario where filters was applied on pipes, not on BGP protocols, all received routes can be viewed via CLI: show route protocol table . thanks Mikhail, using the command you suggested I actually see the networks, so it looks like they are not propagat

Check on routes announced by peer

2011-01-28 Thread Simone Morandini
Hi all, a (hopefully) quick question: one of our peer says it is announcing a set of network to the route server, but there routes do not actually appear to be there... If I issue a "sh route protocol " the list is empty, as well as if I issue "sh route where bgp_path.first=". Is there a way t

Required capability missing

2010-12-13 Thread Simone Morandini
Hi all, I've just configured a new peer on our IPv6 implementation of BIRD and, as per the subject, I'm receiving the following error with "sh protocols": BGP T_ start 18:05 Idle Received: Required capability missing Last lines of logfile repeat the following: 13-12

No routes seen, as32 issue?

2010-06-23 Thread Simone Morandini
Hi bird-users, I'm having a problem with the latest member I've connected to the route server. I followed the same procedure as the others (generating the config file with a script), but although the session is actually established, he doesn't receive any of the routes announced on the route s

Re: Compiling for IPv6

2010-06-04 Thread Simone Morandini
Hi Ondrej, this is a known bug. It is fixed differently in current git repository, but you can for example use my hot fix from Fedora RPMs. (Attached). thanks for the patch, after that it compiled regularly (of course!). Plus, I see that version 1.2.3 compiles fine as well... Thanks! Regards

Compiling for IPv6

2010-05-28 Thread Simone Morandini
Hi all, I'd like to set up an IPv6 instance of BIRD for our members, but I'm having some troubles with "make". When I issue "./configure --enable-ipv6" everything goes fine, but the subsequent "make" at a certain poing gives these errors: [...] gcc -I../ -I../.. -g -O2 -Wall -Wstrict-prototyp

Re: Adding and deleting communities...

2010-05-26 Thread Simone Morandini
Hi Ondrej, If you attach the no-export community in the pipe export filter, then it is here before the export to the BGP protocol (MYPEER), therefore it wouldn't be exported unless the protocol has 'interpret communities no' set. If the BGP protocol has 'interpret communities no' set, it should

Re: Adding and deleting communities...

2010-05-21 Thread Simone Morandini
Hi Arnold, actually I wouldn't do resp. interprete ist that way. If customer sets no-export, then simply do not export that prefix. yes, what I didn't mention is that I've been asked to strip the no-export and then re-attach it... If customer really wants to have no-export set to the o

Adding and deleting communities...

2010-05-20 Thread Simone Morandini
Hi all, I need your help to understand what I'm missing... One of the rs clients sends a route with no-export community, so I have to strip it on ingress and re-attach it on egress. I thought I have two alternatives: using "interpret community no" in the bgp table of the peer, or playing with

Multiple BIRD instances on the same machine

2010-05-18 Thread Simone Morandini
Dear all, is it possible to "split" BIRD and use the same physical machine as a route server on two separate LANs? If yes, how can I do it? If feasible, is it something that is discouraged? Thanks, Simone. -- This message has been scanned for viruses and dangerous content by MailScanner, and

Send community

2010-05-13 Thread Simone Morandini
Hi all, is it possible to send a specific community from a given RS participant to another RS partecipant? Thanks, Simone. -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.

Re: Malformed AS_PATH

2010-05-10 Thread Simone Morandini
Configure no bgp enforce-first-as on the Cisco sitting at the other side. Or prepend your own AS number, Thanks Arnold! Using "no bgp enforce-first-as" the session came up... Simone. -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to

Malformed AS_PATH

2010-05-07 Thread Simone Morandini
Hi all, I've just started playing around with BIRD: I configured a server with v. 1.2.1 Simple configuration, just to test, with 2 routers: one is ours, the other is a member's router. From what I see, the session between the member and the RS is ok, while the session between our router and th