<html><head></head><body><div dir="auto">Hello!<br><br>You're right, the information you found and described here is correct. Kudos to you for being able to dig it all out yourself.<br><br>We're all travelling this weekend with a limited time and internet access so we couldn't reply instantly as we sometimes do. Yet the fact that it apparently didn't take you excessive time, I'd interpret it that our development documentation is quite good.<br><br>Anyway, to pickup on this, is there anything we could do better to help you finding the needed information faster and in more convenient way?<br><br>Thank you for sharing.<br>Maria<br></div><br><br><div class="gmail_quote"><div dir="auto">On 21 May 2023 12:23:25 CEST, Pim van Pelt via Bird-users <bird-users@network.cz> wrote:</div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div dir="ltr">Hoi,<div><br></div><div>To close out my monologue -- I sent <a href="https://gerrit.fd.io/r/c/vpp/+/38854">https://gerrit.fd.io/r/c/vpp/+/38854</a> to make VPP's Linux Controlplane plugin aware of NLM_F_REPLACE messages. Rolled that out at AS8283 this morning, and our duplicate FIB entry issue is gone. Nothing to see here, moving along :)</div><div><br></div><div>groet,</div><div>Pim</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, May 20, 2023 at 11:50 PM Pim van Pelt <<a href="mailto:pim@ipng.nl">pim@ipng.nl</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Hoi,<div><br></div><div>I think I've found the answer to my question by taking a look at git history in netlink handling.</div><div><br></div><div>This commit:</div><div>
<p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(170,171,37)"><span style="font-variant-ligatures:no-common-ligatures">commit 8235c4747dcc92de2ea991f78cdf9c6b8fa7f522</span></p>
<p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures">Author: Ondrej Zajicek (work) <<a href="mailto:santiago@crfreenet.org" target="_blank">santiago@crfreenet.org</a>></span></p>
<p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures">Date: <span> </span>Mon Jul 15 16:23:18 2019 +0200</span></p>
<p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(0,0,0);min-height:13px"><span style="font-variant-ligatures:no-common-ligatures"></span><br></p>
<p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures"><span> </span>Netlink: Use route </span><span style="font-variant-ligatures:no-common-ligatures;color:rgb(255,255,255);background-color:rgb(0,0,0)">replace</span><span style="font-variant-ligatures:no-common-ligatures"> for IPv4</span></p><p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures"><br></span></p>Started using NL_OP_REPLACE for IPv4, but it kept it disabled for IPv6, and then this commit:</div><div>
<p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(170,171,37)"><span style="font-variant-ligatures:no-common-ligatures"><br></span></p><p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(170,171,37)"><span style="font-variant-ligatures:no-common-ligatures">commit 722daa950046a7ad307fd7aca8e0506f30b3d000</span></p>
<p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures">Author: Ondrej Zajicek <<a href="mailto:santiago@crfreenet.org" target="_blank">santiago@crfreenet.org</a>></span></p>
<p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures">Date: <span> </span>Mon Jul 25 00:11:40 2022 +0200</span></p>
<p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(0,0,0);min-height:13px"><span style="font-variant-ligatures:no-common-ligatures"></span><br></p>
<p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures"><span> </span>Netlink: Simplify handling of IPv6 ECMP routes</span></p><p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures"><br></span></p>started using for IPv6 as well, where this commit:<p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures"><br></span></p></div><div>
<p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(170,171,37)"><span style="font-variant-ligatures:no-common-ligatures">commit ddb1bdf2819ce69248d5a51e71d803f13548b217</span></p>
<p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures">Author: Ondrej Zajicek <<a href="mailto:santiago@crfreenet.org" target="_blank">santiago@crfreenet.org</a>></span></p>
<p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures">Date: <span> </span>Tue Jul 26 18:45:20 2022 +0200</span></p>
<p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(0,0,0);min-height:13px"><span style="font-variant-ligatures:no-common-ligatures"></span><br></p>
<p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures"><span> </span>Netlink: Restrict route replace for IPv6</span></p><p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures"><br></span></p>added a nice guard in nl_allow_replace() -- this explains the replace semantics (which 'ip monitor route' does not show), and answers my question. For my application, I'll have to take a good look at consuming messages with flag NLM_F_CREATE|NLM_F_REPLACE set; and otherwise perhaps add the ability to Bird2/Bird3 to holdback and issue NL_OP_DELETE + NL_OP_ADD.</div><div><br></div><div>For the curious, the application is Vector Packet Processing [<a href="https://ipng.ch/s/articles/2021/09/02/vpp-5.html" target="_blank">ref</a>] which consumes Netlink messages from the Linux kernel, and uses them to program a userspace dataplane, see [<a href="https://s3-docs.fd.io/vpp/23.06/developer/plugins/lcp.html" target="_blank">Linux Control Plane</a>] for details. Until now, this system consumes RTM_NEWROUTE and RTM_DELROUTE but is not yet capable of consuming this replacing logic. I'll take a look at adding that.</div><div><br></div><div>groet,</div><div>Pim<br><p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:11px;line-height:normal;font-family:Menlo;color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures"><br></span></p></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, May 20, 2023 at 11:10 PM Pim van Pelt <<a href="mailto:pim@ipng.nl" target="_blank">pim@ipng.nl</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div dir="ltr">Hoi,<div><br></div><div>As a quick followup why I'm asking about versions -- on a Bird2.0.7, I do see the delete-before-insert:</div><div><br></div><div>
<p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:15px;line-height:normal;font-family:Menlo;color:rgb(242,242,242);background-color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures">root@chgtg0:~# ip -6 monitor route | grep 2001:678:d78::6</span></p><p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:15px;line-height:normal;font-family:Menlo;color:rgb(242,242,242);background-color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures"><br></span></p><p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:15px;line-height:normal;font-family:Menlo;color:rgb(242,242,242);background-color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures"># Raise OSPFv3 cost to prefer tf-0-0</span></p>
<p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:15px;line-height:normal;font-family:Menlo;background-color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures"><b><font color="#00ff00">Deleted</font></b><font color="#f2f2f2"> 2001:678:d78::6 via fe80::21b:21ff:febd:c718 dev xe0-3.3102.20 proto bird metric 32 pref medium</font></span></p>
<p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:15px;line-height:normal;font-family:Menlo;color:rgb(242,242,242);background-color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures">2001:678:d78::6 via fe80::6eb3:11ff:fe20:e0c4 dev tf0-0 proto bird metric 32 pref medium</span></p>
<p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:15px;line-height:normal;font-family:Menlo;background-color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures"><b><font color="#00ff00"><br></font></b></span></p><p style="font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:15px;line-height:normal;font-family:Menlo;margin:0px;color:rgb(242,242,242);background-color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures"># Lower OSPFv3 cost to prefer xe0-3.3102.20 again</span></p><p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:15px;line-height:normal;font-family:Menlo;background-color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures"><b><font color="#00ff00">Deleted</font></b><font color="#f2f2f2"> 2001:678:d78::6 via fe80::6eb3:11ff:fe20:e0c4 dev tf0-0 proto bird metric 32 pref medium</font></span></p>
<p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:15px;line-height:normal;font-family:Menlo;color:rgb(242,242,242);background-color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures">2001:678:d78::6 via fe80::21b:21ff:febd:c718 dev xe0-3.3102.20 proto bird metric 32 pref medium</span></p></div></div><div><br></div><div>groet,</div><div>Pim</div><div><br></div><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, May 20, 2023 at 10:51 PM Pim van Pelt <<a href="mailto:pim@ipng.nl" target="_blank">pim@ipng.nl</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Hoi folks,<div><br></div><div>At Coloclue AS8283, we upgraded from Bird1.6.8 to Bird2.0.12 this week. We use two separate processes, one for IPv4 and one for IPv6 - and 2.0.7 in Debian is missing the ability to select 'accept ipv4' and 'accept ipv6' in BFD, so we installed backports and version 2.0.12).</div><div><br></div><div>I am wondering if Bird2 later than 2.0.7 perhaps has an optimization when swapping routes? I would expect a swap to be "delete + add" but I am seeing only "add with new nexthop" appear in Netlink.</div><div><br></div><div>Considering the following topology with link names and OSPFv3 costs associated:</div><div><br></div><div>
<p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:15px;line-height:normal;font-family:Menlo;color:rgb(242,242,242);background-color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures"><span> </span>dcg-1<span> </span>bond0.130 ---- bond0.130 eun-2</span></p>
<p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:15px;line-height:normal;font-family:Menlo;color:rgb(242,242,242);background-color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures"><span> </span>| <span> 20</span>00 <span> </span>|</span></p>
<p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:15px;line-height:normal;font-family:Menlo;color:rgb(242,242,242);background-color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures">enp1s0f3 <span> </span>enp1s0f2</span></p>
<p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:15px;line-height:normal;font-family:Menlo;color:rgb(242,242,242);background-color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures"><span> </span>|<span> </span>|</span></p>
<p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:15px;line-height:normal;font-family:Menlo;color:rgb(242,242,242);background-color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures"><span> </span>| 10<span> </span>10 |</span></p>
<p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:15px;line-height:normal;font-family:Menlo;color:rgb(242,242,242);background-color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures"><span> </span>|<span> </span>|</span></p>
<p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:15px;line-height:normal;font-family:Menlo;color:rgb(242,242,242);background-color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures">enp1s0f3 <span> </span>enp1s0f3</span></p>
<p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:15px;line-height:normal;font-family:Menlo;color:rgb(242,242,242);background-color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures"><span> </span>| <span> </span>1000 <span> </span>|</span></p>
<p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:15px;line-height:normal;font-family:Menlo;color:rgb(242,242,242);background-color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures"><span> </span>dcg-2<span> </span>eno2.3469 ---- eno2.3469 eun-3</span></p></div><div><br></div><div>If I restart the OSPFv3 protocol, I see that the topology settles in the expected way. What I observed with bird 2.0.12 is that there is a deletion of the currently selected route followed by one addition, when the shortest path reveales (dcg1 - dcg2 - eun3 - eun2, ospf_metric1 is 1020, this is fine):</div><div>
<p style="font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:15px;line-height:normal;font-family:Menlo;margin:0px;color:rgb(242,242,242);background-color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures">root@dcg-1:~# birdc </span><span style="font-variant-ligatures:no-common-ligatures">-s /run/bird/bird6.ctl</span><span style="font-variant-ligatures:no-common-ligatures"> </span><span style="font-variant-ligatures:no-common-ligatures">restart ospf1</span></p>
<p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:15px;line-height:normal;font-family:Menlo;color:rgb(242,242,242);background-color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures">root@dcg-1:~# ip -6 monitor route | grep </span><span style="font-variant-ligatures:no-common-ligatures">2a02:898:0:300::3</span></p>
<p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:15px;line-height:normal;font-family:Menlo;color:rgb(242,242,242);background-color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures">Deleted 2a02:898:0:300::3 via fe80::669d:99ff:feb1:31af dev bond0.130 proto bird metric 32 pref medium</span><br></p>
<p style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:15px;line-height:normal;font-family:Menlo;background-color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures"><font color="#00ff00">2a02:898:0:300::3 via fe80::669d:99ff:feb1:3910 dev enp1s0f3 proto bird metric 32 pref medium</font></span></p><span><div><span><br></span></div><div>Now I lower the cost of the dcg-1 -- eun-2 link from 2000 to 100, so that it becomes preferred (cost ospf_metric is 120):</div><div><br></div><div><p style="font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:15px;line-height:normal;font-family:Menlo;margin:0px;color:rgb(242,242,242);background-color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures">root@dcg-1:~# birdc </span><span style="font-variant-ligatures:no-common-ligatures">-s /run/bird/bird6.ctl</span><span style="font-variant-ligatures:no-common-ligatures"> </span><span style="font-variant-ligatures:no-common-ligatures">reconfigure ospf1</span></p><p style="font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:15px;line-height:normal;font-family:Menlo;margin:0px;color:rgb(242,242,242);background-color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures">root@dcg-1:~# ip -6 monitor route | grep </span><span style="font-variant-ligatures:no-common-ligatures">2a02:898:0:300::3</span></p>
<p style="font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:15px;line-height:normal;font-family:Menlo;margin:0px;background-color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures"><b><font color="#ff0000">[[ HERE ]]</font></b></span></p><p style="font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:15px;line-height:normal;font-family:Menlo;margin:0px;background-color:rgb(0,0,0)"><span style="font-variant-ligatures:no-common-ligatures"><font color="#00ff00">2a02:898:0:300::3 via fe80::669d:99ff:feb1:31af dev bond0.130 proto bird metric 32 pref medium</font></span></p></div><div><br></div><div>I would expect this new addition of the installed route on bond0.130 to be <b>preceded by a deletion</b> of the previous route from enp1s0f3, but this is not the case (marked in red with [[ HERE ]]). </div><div><span><br></span></div><div><span>To anyone's knowledge: </span><b>Has this behavior changed between 2.0.7 and 2.0.12 ?</b></div><div><span><br></span></div><div><span>groet,</span></div><div><span>Pim</span></div>-- </span><br><div dir="ltr">Pim van Pelt <<a href="mailto:pim@ipng.nl" target="_blank">pim@ipng.nl</a>> <br>PBVP1-RIPE - <a href="http://www.ipng.nl/" target="_blank">http://www.ipng.nl/</a></div></div></div>
</blockquote></div><br clear="all"><div><br></div><span>-- </span><br><div dir="ltr">Pim van Pelt <<a href="mailto:pim@ipng.nl" target="_blank">pim@ipng.nl</a>> <br>PBVP1-RIPE - <a href="http://www.ipng.nl/" target="_blank">http://www.ipng.nl/</a></div></div>
</blockquote></div><br clear="all"><div><br></div><span>-- </span><br><div dir="ltr">Pim van Pelt <<a href="mailto:pim@ipng.nl" target="_blank">pim@ipng.nl</a>> <br>PBVP1-RIPE - <a href="http://www.ipng.nl/" target="_blank">http://www.ipng.nl/</a></div>
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