Hi, I am trying to use FRR in my VM for BGP 3107 functionality. While configuring the BGP neighbor with address family "ipv4 labeled-unicast", the neighbor state shows NoNeg. But the peer side router shows established. I also noticed the routes are learnt in FRR from peer router and installed in the route table. But, I am trying to advertise my VM loopback to the LU neighbor, which is not happening. Can someone help me on this? Below is the VM details, root@ubuntu4-4-VM2:~# uname -r 4.16.18-041618-generic root@ubuntu4-4-VM2:~# lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 16.04.4 LTS Release: 16.04 Codename: xenial root@ubuntu4-4-VM2:~# FRR version: Total number of neighbors 1 ubuntu4-4-VM2# show version FRRouting 5.0 (ubuntu4-4-VM2). Copyright 1996-2005 Kunihiro Ishiguro, et al. configured with: '--build=x86_64-linux-gnu' '--prefix=/usr' '--includedir=${prefix}/include' '--mandir=${prefix}/share/man' '--infodir=${prefix}/share/info' '--sysconfdir=/etc' '--localstatedir=/var' '--disable-silent-rules' '--libexecdir=${prefix}/lib/frr' '--disable-maintainer-mode' '--disable-dependency-tracking' '--enable-exampledir=/usr/share/doc/frr/examples/' '--localstatedir=/var/run/frr' '--sbindir=/usr/lib/frr' '--sysconfdir=/etc/frr' '--disable-snmp' '--enable-ospfapi=yes' '--enable-multipath=256' '--enable-ldpd' '--disable-tcp-zebra' '--enable-fpm' '--enable-user=frr' '--enable-group=frr' '--enable-vty-group=frrvty' '--enable-configfile-mask=0640' '--enable-logfile-mask=0640' '--enable-werror' '--with-libpam' '--enable-systemd=yes' '--enable-poll=yes' '--enable-cumulus=no' '--enable-pimd' '--enable-dependency-tracking' '--enable-bgp-vnc=yes' '--disable-rpki' 'CFLAGS=-g -O2 -fPIE -fstack-protector-strong -Wformat -Werror=format-security' 'CPPFLAGS=-Wdate-time -D_FORTIFY_SOURCE=2' 'CXXFLAGS=-g -O2 -fPIE -fstack-protector-strong -Wformat -Werror=format-security' 'FCFLAGS=-g -O2 -fPIE -fstack-protector-strong' 'FFLAGS=-g -O2 -fPIE -fstack-protector-strong' 'GCJFLAGS=-g -O2 -fPIE -fstack-protector-strong' 'LDFLAGS=-Wl,-Bsymbolic-functions -fPIE -pie -Wl,-z,relro -Wl,-z,now' 'OBJCFLAGS=-g -O2 -fPIE -fstack-protector-strong -Wformat -Werror=format-security' 'OBJCXXFLAGS=-g -O2 -fPIE -fstack-protector-strong -Wformat -Werror=format-security' 'build_alias=x86_64-linux-gnu' ubuntu4-4-VM2# FRR configuration, ubuntu4-4-VM2# sh running-config Building configuration... Current configuration: ! frr version 5.0 frr defaults traditional hostname ubuntu4-4-VM2 log syslog informational no ip forwarding no ipv6 forwarding service integrated-vtysh-config username cumulus nopassword ! interface lo ip address 10.10.100.11/32 label lo:10 ! router bgp 7018 neighbor 10.10.101.1 remote-as 7018 ! address-family ipv4 unicast network 10.0.0.0/8 label-index 3 no neighbor 10.10.101.1 activate exit-address-family ! address-family ipv4 labeled-unicast neighbor 10.10.101.1 activate neighbor 10.10.101.1 next-hop-self neighbor 10.10.101.1 route-map ADV_Lo10 out exit-address-family ! route-map ADV_Lo10 permit 10 match ip address 10.10.100.11/32 match source-protocol connected ! line vty ! end ubuntu4-4-VM2# sh ip bg sum IPv4 Labeled Unicast Summary: BGP router identifier 10.10.100.11, local AS number 7018 vrf-id 0 BGP table version 0 RIB entries 0, using 0 bytes of memory Peers 1, using 20 KiB of memory Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd 10.10.101.1 4 7018 9337 8553 0 0 0 2d23h15m NoNeg Total number of neighbors 1 ubuntu4-4-VM2# ubuntu4-4-VM2# show ip bgp ipv4 labeled-unicast neighbors 10.10.101.1 advertised-routes % No such neighbor or address family ubuntu4-4-VM2# show ip bgp ipv4 labeled-unicast neighbors 10.10.101.1 received-routes % No such neighbor or address family ubuntu4-4-VM2# Displayed 26 routes and 26 total paths ubuntu4-4-VM2# sh ip route Codes: K - kernel route, C - connected, S - static, R - RIP, O - OSPF, I - IS-IS, B - BGP, E - EIGRP, N - NHRP, T - Table, v - VNC, V - VNC-Direct, A - Babel, D - SHARP, F - PBR, > - selected route, * - FIB route K>* 0.0.0.0/0 [0/0] via 135.21.13.161, ens3, 2d23h58m B>* 10.10.100.1/32 [200/0] via 10.10.101.1, bond0.11, label 306384, 2d23h58m B>* 10.10.100.10/32 [200/0] via 10.10.101.1, bond0.11, label 306416, 2d23h58m C>* 10.10.100.11/32 is directly connected, lo, 2d23h58m C>* 10.10.101.0/30 is directly connected, bond0.11, 2d23h58m C>* 10.10.101.32/30 is directly connected, bond0.12, 2d23h58m B>* 10.10.101.36/30 [200/0] via 10.10.101.1, bond0.11, label 306432, 2d23h58m B>* 10.10.101.40/30 [200/0] via 10.10.101.1, bond0.11, label 306368, 2d23h58m B>* 10.10.252.1/32 [200/0] via 10.10.101.1, bond0.11, label 306048, 2d23h58m B>* 10.10.252.2/32 [200/0] via 10.10.101.1, bond0.11, label 306064, 2d23h58m Regards, Thiruvazhiyan L ============================================================================================================================ Disclaimer: This message and the information contained herein is proprietary and confidential and subject to the Tech Mahindra policy statement, you may review the policy at http://www.techmahindra.com/Disclaimer.html <http://www.techmahindra.com/Disclaimer.html> externally http://tim.techmahindra.com/tim/disclaimer.html <http://tim.techmahindra.com/tim/disclaimer.html> internally within TechMahindra. ============================================================================================================================