<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Hi<br class=""><div class=""><br class=""></div><div class=""><div style="color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;"><div class="">we faced some strange thing with Cumulus Quagga, and suspect same problem can be in the FRR and would like to fix for the FRR actually,</div><div class="">but not sure how to reproduce / collect info.</div><div class=""><br class=""></div><div class="">There is one bgp neighbor which is not possible to delete</div><div class=""><br class=""></div><div class=""><i class="">pmx2-lc(config-router)# no neighbor 169.254.3.158</i></div><div class=""><br class=""></div><div class="">this command passes without any error, but neighbor stay in the config</div><div class=""><br class=""></div><div class=""><i class="">pmx2-lc(config-router)# do sh ip bgp sum</i></div><div class=""><i class="">BGP router identifier 185.47.156.72, local AS number 65002 vrf-id 0</i></div><div class=""><i class="">BGP table version 10800</i></div><div class=""><i class="">RIB entries 36, using 4320 bytes of memory</i></div><div class=""><i class="">Peers 15, using 242 KiB of memory</i></div><div class=""><i class="">Peer groups 1, using 56 bytes of memory</i></div><div class=""><i class="">Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd</i></div><div class=""><i class="">sw-r02-lc(eth0) 4 65001 2274657 2302512 0 0 0 11w1d16h 2</i></div><div class=""><i class="">sw-r01-lc(eth1) 4 65001 2153318 2181383 0 0 0 01w6d06h 2</i></div><div class=""><i class="">lc-asp-03.inn.local(tap142i0)</i></div><div class=""><i class=""> 4 65501 5252 5250 0 0 0 01:55:45 3</i></div><div class=""><i class="">kafka3-lc(tap156i0)</i></div><div class=""><i class=""> 4 65501 1386887 1387056 0 0 0 06w6d00h 1</i></div><div class=""><i class="">graphite12-lc(tap159i0)</i></div><div class=""><i class=""> 4 65501 155671 155670 0 0 0 5d06h52m 2</i></div><div class=""><i class="">169.254.0.22 4 65501 2563492 2254328 0 0 0 06w5d23h 1</i></div><div class=""><i class="">169.254.2.178 4 65501 2694 3669 0 0 0 00:09:25 Active </i></div><div class=""><i class="">169.254.3.110 4 65501 2506996 2203248 0 0 0 6d06h59m 1</i></div><div class=""><i class="">169.254.3.114 4 65501 2506872 2203170 0 0 0 6d06h58m 1</i></div><div class=""><i class="">169.254.3.118 4 65501 2506884 2203161 0 0 0 6d06h58m 1</i></div><div class=""><i class="">169.254.3.134 4 65501 2565467 2254302 0 0 0 01w6d05h 1</i></div><div class=""><i class="">169.254.3.138 4 65501 2564879 2254199 0 0 0 01w6d05h 1</i></div><div class=""><i class="">169.254.3.158 4 65501 2561502 2248955 0 0 0 02:07:54 Active <--- THIS one - UNDELETABLE neighbor</i></div><div class=""><i class="">169.254.3.162 4 65501 2567715 2255136 0 0 0 11w0d19h 1</i></div><div class=""><i class="">169.254.3.170 4 65501 2579032 2265582 0 0 0 02w0d15h 1 (edited)</i></div><div class=""><br class=""></div><div class=""><br class=""></div><div class="">That neighbor is not recognized by configurator which allows to add second neighbor with the same IP</div><div class=""><i class=""><br class=""></i></div><div class=""><i class="">169.254.3.138 4 65501 2565041 2254344 0 0 0 01w6d05h 1</i></div><div class=""><i class="">169.254.3.158 4 65501 2561502 2248955 0 0 0 02:15:03 Active <-------- undeletable neighbor</i></div><div class=""><i class="">169.254.3.158 4 888 0 0 0 0 0 never Active <-------- new neighbor</i></div><div class=""><i class="">169.254.3.162 4 65501 2567879 2255281 0 0 0 11w0d19h 1</i></div><div class=""><br class=""></div><div class=""><br class=""></div><div class="">then deleting will remove only new one</div><div class=""><i class=""><br class=""></i></div><div class=""><i class="">pmx2-lc(config-router)# no neighbor 169.254.3.158</i></div><div class=""><i class="">pmx2-lc(config-router)# no neighbor 169.254.3.158</i></div><div class=""><i class="">pmx2-lc(config-router)# no neighbor 169.254.3.158</i></div><div class=""><br class=""></div><div class=""><i class="">169.254.3.138 4 65501 2565041 2254344 0 0 0 01w6d05h 1</i></div><div class=""><i class="">169.254.3.158 4 65501 2561502 2248955 0 0 0 02:15:03 Active <-------- undeletable neighbor</i></div><div class=""><i class="">169.254.3.162 4 65501 2567879 2255281 0 0 0 11w0d19h 1</i></div><div class=""><br class=""></div><div class=""><br class=""></div></div><div style="text-align: start; text-indent: 0px;">The problem was solved after quagga daemon had been restarted.</div><div style="color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;"><br class=""></div><div style="color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;">Best Regards<br class=""><b class="">Tigran Martirosyan<br class="">R&D Director</b><br class=""><br class=""></div><span style="color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; 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