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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-family:"Times New Roman",serif;color:black'>Hi <o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman",serif;color:black'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman",serif;color:black'>CPU MHz: 2494.140. I found the BIRD is using different CPU at different time and it’s crossing 100% utilization using command “htop”. It’s happening when I am trying to establish a neighbor where prefix count is more than 106K. I found that BIRD3 support multi-core. Is there any way to install BIRD 3? <o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman",serif;color:black'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman",serif;color:black'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman",serif;color:black'>Thanks & Regards<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman",serif;color:black'>Abu Nasar Md. Saifullah<o:p></o:p></span></p><p class=MsoNormal><span style='color:black'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman",serif;color:black'><o:p> </o:p></span></p><p class=MsoNormal><b>From:</b> Darshan Kowlaser <darshan@darshankowlaser.com> <br><b>Sent:</b> Tuesday, April 18, 2023 11:00 PM<br><b>To:</b> saifullah@fiberathome.net<br><b>Subject:</b> Re: BIRD is taking too much time to converge 106362 prefixes from a non-client iBGP neighbor<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>Hi<br><br>Something to consider is that BGP on BIRD runs on a single core. If you slow clock speed you are going to run into issues? What is the CPU utilization while the BIRD daemon stopped?<o:p></o:p></p></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>On Tue, Apr 18, 2023 at 6:18 PM <<a href="mailto:saifullah@fiberathome.net">saifullah@fiberathome.net</a>> wrote:<o:p></o:p></p></div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in'><p class=MsoNormal style='margin-bottom:12.0pt'>Hi Dear, <br><br>Thank you for your feedback. The server I am using of 16 VCPU with 2 threads<br>per CPU and 16 GB RAM. I found that CPU utilizations is crossing 100% in a<br>CPU. Any way to install and configure BIRD so that it uses all CPU<br>simultaneously? <br><br><br>Thanks & Regards<br>Abu Nasar Md. Saifullah<br><br>-----Original Message-----<br>From: Ondrej Zajicek <<a href="mailto:santiago@crfreenet.org" target="_blank">santiago@crfreenet.org</a>> <br>Sent: Monday, April 17, 2023 6:17 PM<br>To: <a href="mailto:saifullah@fiberathome.net" target="_blank">saifullah@fiberathome.net</a><br>Cc: <a href="mailto:bird-users@network.cz" target="_blank">bird-users@network.cz</a><br>Subject: Re: BIRD is taking too much time to converge 106362 prefixes from a<br>non-client iBGP neighbor<br><br>On Thu, Apr 13, 2023 at 11:47:12PM +0600, <a href="mailto:saifullah@fiberathome.net" target="_blank">saifullah@fiberathome.net</a> wrote:<br>> Hi,<br>> <br>> Thanks for your feedback. The topology is BIRD is connected with total <br>> 8 neighbors (1 is non-client and 7 are in client mode) for my setup. <br>> The non-client neighbor is actually a high end central RR router which <br>> advertise about 106k prefixes to BIRD and with other 7 client, the <br>> prefix count is below 100.<br>> <br>> 1. During that time, I have checked and found that CPU load was normal.<br>> 2. I also checking prefix count using command "show protocols all <br>> <non_client_neighbor>" and found prefixes were increasing gradually.<br><br>Hi<br><br>If CPU was normal (idle), then it is unlikely an issue with BIRD.<br>Prefixes are processed as they arrive, so they are delayed only if BIRD<br>cannot catch up and use 100% CPU (note that it is single-threaded, so you<br>have to check load on individual CPUs and not aggregate load, like is<br>default in 'top'). Perhaps the other side send prefixes slowly?<br><br>--<br>Elen sila lumenn' omentielvo<br><br>Ondrej 'Santiago' Zajicek (email: <a href="mailto:santiago@crfreenet.org" target="_blank">santiago@crfreenet.org</a>) OpenPGP encrypted<br>e-mails preferred (KeyID 0x11DEADC3, <a href="http://wwwkeys.pgp.net" target="_blank">wwwkeys.pgp.net</a>) "To err is human -- to<br>blame it on a computer is even more so."<br><br>Connecting our future with light<o:p></o:p></p></blockquote></div></div>
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