October 2023 - Bird-users

BIRD 2.14
by Ondrej Filip 09 Oct '23

09 Oct '23

Dear BIRD users, we're releasing a new version 2.14. I thank my colleagues for this this. Version 2.14 o MPLS subsystem o L3VPN: BGP/MPLS VPNs (RFC 4364) o BGP: Access to unknown route attributes o RAdv: Custom options o Babel: RTT metric extension o BMP: Refactored route monitoring o BMP: Multiple instances of BMP protocol o BMP: Both pre-policy and post-policy monitoring o Experimental route aggregation o Filter: Method framework o Filter: Functions have return type statements o Filter: New bytestring data type o Kernel: Option to learn kernel routes o Many bugfixes and improvements Notes: User-defined filter functions that return values now should have return type statements. We still accept functions without such statement, if they could be properly typed. For loops allowed to use both existing iterator variables or ones defined in the for statement. We no longer support the first case, all iterator variables must be defined in the for statement (e.g. 'for int i in bgp_path ...'). Due to oversight, VRF interfaces were not included in respective VRFs, this is fixed now. Happy routing! Ondrej

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kernel: does not learn routes with RTPROT_KERNEL
by Pavel Šorejs 08 Oct '23

08 Oct '23

Hi i have following problem - the kernel protocol ignores routes with RTPROT_KERNEL source. Is there some particular reason why this is so? Why am i asking? I use BIRD in linux container orchestration context (Kubernetes) in conjunction with cilium project (https://cilium.io/) Lately they discovered, that systemd likes to mess with their routes and did a change to insert their routes with RTPROT_KERNEL source flag. This way, systemd doesn't try to mess with their routes. Side effect of this is that my installation got broken as BIRD ignores such routes. Now i don't know where to start - either they are wrong with using RTPROT_KERNEL flag in the first place, or BIRD is wrong by ignoring such routes. So i am trying here first. Also there was some discussion in the past https://bird.network.cz/pipermail/bird-users/2013-August/008519.html, which just died. Do anybody have some suggestions? Thank You Pavel Sorejs

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bird rip question
by Miklós Máté 07 Oct '23

07 Oct '23

Hi, I'm trying to set up BIRD to demonstrate RIP in a Mininet environment, but it doesn't seem to work. I'm using the attached configs. The OSPF one works properly, but with RIP it only sends a Request message on startup, and then nothing. According to the log the Request is received properly, but no Response is sent, and the periodic timer doesn't do anything either. This is the stderr log on node B when I start BIRD on the neighboring node A: 2023-10-06 15:50:03.951 <TRACE> rip1: New neighbor 10.0.1.1 on ethBA 2023-10-06 15:50:03.951 <TRACE> rip1: Request received from 10.0.1.1 on ethBA 2023-10-06 15:50:12.156 <TRACE> rip1: Interface timer fired for ethBA 2023-10-06 15:50:12.156 <TRACE> rip1: Sending regular updates for ethBA 2023-10-06 15:50:12.453 <TRACE> rip1: Interface timer fired for ethBC 2023-10-06 15:50:12.453 <TRACE> rip1: Sending regular updates for ethBC 2023-10-06 15:50:13.163 <TRACE> device1: Scanning interfaces 2023-10-06 15:50:18.163 <TRACE> device1: Scanning interfaces 2023-10-06 15:50:18.163 <TRACE> kernel1: Scanning routing table 2023-10-06 15:50:18.163 <TRACE> kernel1: Pruning table master4 2023-10-06 15:50:18.163 <TRACE> kernel1: Pruning inherited routes 2023-10-06 15:50:22.156 <TRACE> rip1: Interface timer fired for ethBA 2023-10-06 15:50:22.156 <TRACE> rip1: Sending regular updates for ethBA 2023-10-06 15:50:22.453 <TRACE> rip1: Interface timer fired for ethBC 2023-10-06 15:50:22.453 <TRACE> rip1: Sending regular updates for ethBC I'm completely out of ideas. The sample configs don't have anything that is not in my config. What am I missing? Regards, Miklós Máté -- #!/usr/bin/perl m:[A-Z]:?@;:@?=(@;=>$_)for(split$,,[A-Z]);push@@,lc(pack( q=c*==>ord($;[$[+1])-chr(ord@;)));$_?${@}[++$#{@}]:$,=chr (ord($@[$^W])-($#{y-++--;qq,;,}>>$_))for(0,1);print@@=>$/

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