Re: MPLS routes missing

LovejitSingh1313 · ‎02-07-2021

@Georg Pauwen @balaji.bandi @Giuseppe Larosa @Leo Laohoo @Richard Burts @Rob Ingram @Marius Gunnerud @Aref Alsouqi @Marvin Rhoads

Hello Guys

I got two PE sites in MPLS connectivity working great, i added third site and able to form bgp neighborship (by using underlying ospf) but do not learn any routes.

Topology : using vlan1712 to PTP connectivity for all three sites

setup ospf neighborship and advertising loop0 in ospf

form bgp neighborship bw all three using loop0

vrf name LHIT-internal on which routes are missing.

ospf working Great, bgp neighborships are up. site 1 and site 2 are learning routes in vrf from 3 but site 3 is not.

Here are Router names:

R1: LHIT-XC1 - PTP interface (vlan1712- 172.31.0.1) -- loop0 10.100.100.1

R2: LHIT-XC2 - PTP interface (vlan1712- 172.31.0.2) -- loop0 10.100.100.2

R3: ME3600-LHIT - PTP interface (vlan1712- 172.31.0.11) --loop0 10.100.100.19

Here are the outputs:

LHIT-XC-1(config)# do sh ip ospf neighbor

10.100.100.2 0 FULL/ - 00:00:04 172.31.0.2 Vlan1712
10.100.100.19 0 FULL/ - 00:00:04 172.31.0.11 Vlan1712

LHIT-XC-2#sh ip ospf neighbor

Neighbor ID Pri State Dead Time Address Interface
10.100.100.1 0 FULL/ - 00:00:04 172.31.0.1 Vlan1712
10.100.100.19 0 FULL/ - 00:00:04 172.31.0.11 Vlan1712

ME3600-LHIT#sh ip ospf neighbor

Neighbor ID Pri State Dead Time Address Interface
10.100.100.2 0 FULL/ - 00:00:04 172.31.0.2 Vlan1712
10.100.100.1 0 FULL/ - 00:00:04 172.31.0.1 Vlan1712

LHIT-XC-1(config)#do sh ip bgp all summary
For address family: IPv4 Unicast
BGP router identifier 10.100.100.1, local AS number 64512
BGP table version is 6, main routing table version 6
5 network entries using 720 bytes of memory
7 path entries using 560 bytes of memory
1/1 BGP path/bestpath attribute entries using 152 bytes of memory
10 BGP rrinfo entries using 240 bytes of memory
2 BGP AS-PATH entries using 48 bytes of memory
40 BGP extended community entries using 8192 bytes of memory
0 BGP route-map cache entries using 0 bytes of memory
0 BGP filter-list cache entries using 0 bytes of memory
BGP using 9912 total bytes of memory
BGP activity 53024/52790 prefixes, 220520/220178 paths, scan interval 60 secs

Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd
10.100.0.1 4 64512 263200 264378 6 0 0 4w0d 0
10.100.0.2 4 64512 263177 264359 6 0 0 4w0d 0
10.100.1.1 4 64512 0 0 1 0 0 5y30w Idle
10.100.1.2 4 64512 0 0 1 0 0 never Idle
10.100.1.3 4 64512 261839 264300 6 0 0 4w0d 0
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd
10.100.1.4 4 64512 0 0 1 0 0 8w3d Idle
10.100.1.5 4 64512 261859 264279 6 0 0 4w0d 0
10.100.1.6 4 64512 33879 34929 6 0 0 3d17h 0
10.100.1.7 4 64512 0 0 1 0 0 never Idle
10.100.1.8 4 64512 0 0 1 0 0 1y20w Idle
10.100.1.11 4 64512 261901 264271 6 0 0 4w0d 2
10.100.1.14 4 64512 261868 264317 6 0 0 4w0d 0
10.100.1.15 4 64512 261878 264294 6 0 0 4w0d 0
10.100.1.16 4 64512 261932 264235 6 0 0 4w0d 0
10.100.1.20 4 64512 0 0 1 0 0 3y51w Idle
10.100.1.76 4 64512 261876 264380 6 0 0 4w0d 0
10.100.1.100 4 64512 261870 264232 6 0 0 4w0d 0
10.100.1.101 4 64512 261872 264344 6 0 0 4w0d 0
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd
10.100.4.1 4 64512 0 0 1 0 0 1y0w Idle
10.100.4.2 4 64512 0 0 1 0 0 1y0w Idle
10.100.4.3 4 64512 0 0 1 0 0 1y13w Idle
10.100.4.4 4 64512 0 0 1 0 0 1y19w Idle
10.100.4.192 4 64512 0 0 1 0 0 1y35w Idle
10.100.4.193 4 64512 0 0 1 0 0 1y36w Idle
10.100.4.194 4 64512 0 0 1 0 0 1y35w Idle
10.100.4.199 4 64512 0 0 1 0 0 1y33w Idle
10.100.4.201 4 64512 0 0 1 0 0 1y34w Idle
10.100.4.202 4 64512 0 0 1 0 0 6y15w Idle
10.100.4.203 4 64512 0 0 1 0 0 1y34w Idle
10.100.4.204 4 64512 0 0 1 0 0 1y40w Idle
10.100.4.206 4 64512 0 0 1 0 0 1y35w Idle
10.100.4.207 4 64512 0 0 1 0 0 1y34w Idle
10.100.4.208 4 64512 0 0 1 0 0 1y33w Idle
10.100.4.209 4 64512 0 0 1 0 0 1y33w Idle
10.100.4.210 4 64512 0 0 1 0 0 6y15w Idle
10.100.4.211 4 64512 0 0 1 0 0 1y31w Idle
10.100.4.212 4 64512 0 0 1 0 0 1y35w Idle
10.100.4.217 4 64512 0 0 1 0 0 1y38w Idle
10.100.4.221 4 64512 0 0 1 0 0 1y31w Idle
10.100.4.222 4 64512 0 0 1 0 0 1y31w Idle
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd
10.100.4.223 4 64512 0 0 1 0 0 1y37w Idle
10.100.4.227 4 64512 0 0 1 0 0 1y36w Idle
10.100.4.251 4 64512 0 0 1 0 0 5y50w Idle
10.100.100.2 4 64512 45868 46985 6 0 0 4w0d 5
10.100.100.3 4 64512 0 0 1 0 0 3w1d Idle
10.100.100.4 4 64512 0 0 1 0 0 5y37w Idle
10.100.100.5 4 64512 0 0 1 0 0 1y33w Idle
10.100.100.6 4 64512 0 0 1 0 0 1y20w Idle
10.100.100.7 4 64512 0 0 1 0 0 1y21w Idle
10.100.100.8 4 64512 0 0 1 0 0 26w4d Idle
10.100.100.19 4 64512 9 12 6 0 4 00:02:43 0
10.100.100.125 4 64512 0 0 1 0 0 6y0w Idle

For address family: VPNv4 Unicast
BGP router identifier 10.100.100.1, local AS number 64512
BGP table version is 5334, main routing table version 5334
229 network entries using 35724 bytes of memory
335 path entries using 26800 bytes of memory
53/51 BGP path/bestpath attribute entries using 8480 bytes of memory
10 BGP rrinfo entries using 240 bytes of memory
2 BGP AS-PATH entries using 48 bytes of memory
40 BGP extended community entries using 8192 bytes of memory
0 BGP route-map cache entries using 0 bytes of memory
0 BGP filter-list cache entries using 0 bytes of memory
BGP using 79484 total bytes of memory
BGP activity 53024/52790 prefixes, 220520/220178 paths, scan interval 60 secs

Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd
10.100.0.1 4 64512 263201 264378 5334 0 0 4w0d 13
10.100.0.2 4 64512 263177 264359 5334 0 0 4w0d 9
10.100.1.1 4 64512 0 0 1 0 0 5y30w Idle
10.100.1.3 4 64512 261840 264300 5334 0 0 4w0d 7
10.100.1.4 4 64512 0 0 1 0 0 8w3d Idle
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd
10.100.1.5 4 64512 261859 264279 5334 0 0 4w0d 9
10.100.1.6 4 64512 33879 34929 5334 0 0 3d17h 8
10.100.1.8 4 64512 0 0 1 0 0 1y20w Idle
10.100.1.11 4 64512 261901 264271 5334 0 0 4w0d 7
10.100.1.14 4 64512 261868 264317 5334 0 0 4w0d 7
10.100.1.15 4 64512 261878 264294 5334 0 0 4w0d 7
10.100.1.16 4 64512 261932 264235 5334 0 0 4w0d 7
10.100.1.20 4 64512 0 0 1 0 0 3y51w Idle
10.100.1.76 4 64512 261876 264380 5334 0 0 4w0d 4
10.100.1.100 4 64512 261870 264232 5334 0 0 4w0d 33
10.100.1.101 4 64512 261872 264344 5334 0 0 4w0d 8
10.100.4.1 4 64512 0 0 1 0 0 1y0w Idle
10.100.4.2 4 64512 0 0 1 0 0 1y0w Idle
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd
10.100.4.3 4 64512 0 0 1 0 0 1y13w Idle
10.100.4.4 4 64512 0 0 1 0 0 1y19w Idle
10.100.4.192 4 64512 0 0 1 0 0 1y35w Idle
10.100.4.193 4 64512 0 0 1 0 0 1y36w Idle
10.100.4.194 4 64512 0 0 1 0 0 1y35w Idle
10.100.4.199 4 64512 0 0 1 0 0 1y33w Idle
10.100.4.201 4 64512 0 0 1 0 0 1y34w Idle
10.100.4.202 4 64512 0 0 1 0 0 6y15w Idle
10.100.4.203 4 64512 0 0 1 0 0 1y34w Idle
10.100.4.204 4 64512 0 0 1 0 0 1y40w Idle
10.100.4.206 4 64512 0 0 1 0 0 1y35w Idle
10.100.4.207 4 64512 0 0 1 0 0 1y34w Idle
10.100.4.208 4 64512 0 0 1 0 0 1y33w Idle
10.100.4.209 4 64512 0 0 1 0 0 1y33w Idle
10.100.4.210 4 64512 0 0 1 0 0 6y15w Idle
10.100.4.211 4 64512 0 0 1 0 0 1y31w Idle
10.100.4.212 4 64512 0 0 1 0 0 1y35w Idle
10.100.4.217 4 64512 0 0 1 0 0 1y38w Idle
10.100.4.221 4 64512 0 0 1 0 0 1y31w Idle
10.100.4.222 4 64512 0 0 1 0 0 1y31w Idle
10.100.4.223 4 64512 0 0 1 0 0 1y37w Idle
10.100.4.227 4 64512 0 0 1 0 0 1y36w Idle
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd
10.100.4.251 4 64512 0 0 1 0 0 5y50w Idle
10.100.100.2 4 64512 45868 46985 5334 0 0 4w0d 103
10.100.100.3 4 64512 0 0 1 0 0 3w1d Idle
10.100.100.4 4 64512 0 0 1 0 0 5y37w Idle
10.100.100.5 4 64512 0 0 1 0 0 1y33w Idle
10.100.100.6 4 64512 0 0 1 0 0 1y20w Idle
10.100.100.7 4 64512 0 0 1 0 0 1y21w Idle
10.100.100.8 4 64512 0 0 1 0 0 26w4d Idle
10.100.100.19 4 64512 10 12 5334 0 70 00:02:44 2
10.100.100.125 4 64512 0 0 1 0 0 6y0w Idle
199.175.60.250 4 53494 261876 261832 5334 0 0 4w0d 1

For address family: VPNv4 Multicast

LHIT-XC-2#sh ip bgp all summary
For address family: IPv4 Unicast
BGP router identifier 10.100.100.2, local AS number 64512
BGP table version is 1084, main routing table version 1084
5 network entries using 720 bytes of memory
7 path entries using 560 bytes of memory
2/2 BGP path/bestpath attribute entries using 304 bytes of memory
12 BGP rrinfo entries using 288 bytes of memory
2 BGP AS-PATH entries using 48 bytes of memory
40 BGP extended community entries using 8192 bytes of memory
0 BGP route-map cache entries using 0 bytes of memory
0 BGP filter-list cache entries using 0 bytes of memory
BGP using 10112 total bytes of memory
BGP activity 68933/68699 prefixes, 220579/220238 paths, scan interval 60 secs

Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd
10.100.0.1 4 64512 8486 9334 1084 0 0 22:18:55 0
10.100.0.2 4 64512 4391232 4476903 1084 0 0 1y16w 0
10.100.1.1 4 64512 0 0 1 0 0 5y30w Idle
10.100.1.2 4 64512 0 0 1 0 0 never Idle
10.100.1.3 4 64512 874403 915679 1084 0 0 13w5d 0
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd
10.100.1.4 4 64512 0 0 1 0 0 8w3d Idle
10.100.1.5 4 64512 851320 891315 1084 0 0 13w2d 0
10.100.1.6 4 64512 0 0 1 0 0 never Idle
10.100.1.7 4 64512 0 0 1 0 0 never Idle
10.100.1.8 4 64512 0 0 1 0 0 1y20w Idle
10.100.1.11 4 64512 4944291 5063343 1084 0 0 1y25w 2
10.100.1.14 4 64512 878264 919839 1084 0 0 13w5d 0
10.100.1.15 4 64512 1232201 1290864 1084 0 0 19w2d 0
10.100.1.76 4 64512 696661 726483 1084 0 0 10w6d 0
10.100.1.100 4 64512 1757701 1828218 1084 0 0 27w4d 0
10.100.1.101 4 64512 1681802 1750270 1084 0 0 26w3d 0
10.100.4.1 4 64512 0 0 1 0 0 1y0w Idle
10.100.4.2 4 64512 0 0 1 0 0 never Idle
10.100.4.202 4 64512 0 0 1 0 0 6y15w Idle
10.100.100.1 4 64512 46986 45869 1084 0 0 4w0d 1
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd
10.100.100.3 4 64512 0 0 1 0 0 3w1d Idle
10.100.100.4 4 64512 0 0 1 0 0 5y37w Idle
10.100.100.5 4 64512 0 0 1 0 0 1y33w Idle
10.100.100.7 4 64512 0 0 1 0 0 1y21w Idle
10.100.100.9 4 64512 0 0 1 0 0 3y0w Idle
10.100.100.19 4 64512 7 13 1084 0 5 00:00:47 0

For address family: VPNv4 Unicast
BGP router identifier 10.100.100.2, local AS number 64512
BGP table version is 1258897, main routing table version 1258897
229 network entries using 35724 bytes of memory
334 path entries using 26720 bytes of memory
51/49 BGP path/bestpath attribute entries using 8160 bytes of memory
12 BGP rrinfo entries using 288 bytes of memory
2 BGP AS-PATH entries using 48 bytes of memory
40 BGP extended community entries using 8192 bytes of memory
0 BGP route-map cache entries using 0 bytes of memory
0 BGP filter-list cache entries using 0 bytes of memory
BGP using 79132 total bytes of memory
BGP activity 68933/68699 prefixes, 220579/220238 paths, scan interval 60 secs

Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd
10.100.0.1 4 64512 8486 9334 1258897 0 0 22:18:56 13
10.100.0.2 4 64512 4391233 4476903 1258897 0 0 1y16w 9
10.100.1.1 4 64512 0 0 1 0 0 5y30w Idle
10.100.1.3 4 64512 874403 915679 1258897 0 0 13w5d 7
10.100.1.4 4 64512 0 0 1 0 0 8w3d Idle
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd
10.100.1.5 4 64512 851320 891315 1258897 0 0 13w2d 9
10.100.1.8 4 64512 0 0 1 0 0 1y20w Idle
10.100.1.11 4 64512 4944291 5063343 1258897 0 0 1y25w 7
10.100.1.14 4 64512 878264 919839 1258897 0 0 13w5d 7
10.100.1.15 4 64512 1232201 1290864 1258897 0 0 19w2d 7
10.100.1.76 4 64512 696661 726483 1258897 0 0 10w6d 4
10.100.1.100 4 64512 1757701 1828218 1258897 0 0 27w4d 33
10.100.1.101 4 64512 1681802 1750270 1258897 0 0 26w3d 8
10.100.4.1 4 64512 0 0 1 0 0 1y0w Idle
10.100.4.202 4 64512 0 0 1 0 0 6y15w Idle
10.100.100.1 4 64512 46986 45869 1258897 0 0 4w0d 221
10.100.100.3 4 64512 0 0 1 0 0 3w1d Idle
10.100.100.4 4 64512 0 0 1 0 0 5y37w Idle
10.100.100.5 4 64512 0 0 1 0 0 1y33w Idle
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd
10.100.100.7 4 64512 0 0 1 0 0 1y21w Idle
10.100.100.9 4 64512 0 0 1 0 0 3y0w Idle
10.100.100.19 4 64512 7 13 1258897 0 28 00:00:48 2
199.175.63.254 4 53494 3942577 3943601 1258897 0 0 6y42w 1

For address family: VPNv4 Multicast

For address family: MVPNv4 Unicast

LHIT-XC-2#

ME3600-LHIT# sh ip bgp all summary
For address family: IPv4 Unicast
BGP router identifier 10.100.100.19, local AS number 64512
BGP table version is 1, main routing table version 1

Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd
10.100.100.1 4 64512 4 9 1 0 0 00:02:25 0
10.100.100.2 4 64512 0 0 1 0 0 00:00:11 Idle

For address family: VPNv4 Unicast
BGP router identifier 10.100.100.19, local AS number 64512
BGP table version is 5, main routing table version 5
2 network entries using 312 bytes of memory
2 path entries using 160 bytes of memory
2/2 BGP path/bestpath attribute entries using 320 bytes of memory
1 BGP extended community entries using 24 bytes of memory
0 BGP route-map cache entries using 0 bytes of memory
0 BGP filter-list cache entries using 0 bytes of memory
BGP using 816 total bytes of memory
BGP activity 3/1 prefixes, 4/2 paths, scan interval 60 secs

Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd
10.100.100.1 4 64512 4 9 5 0 0 00:02:25 0

LHIT-XC-1(config)#do sh mpls ldp discovery

Local LDP Identifier:
10.100.100.1:0
Discovery Sources:
Interfaces:
Vlan471 (ldp): xmit
Vlan999 (ldp): xmit
Vlan1101 (ldp): xmit/recv
LDP Id: 10.100.1.6:0
Vlan1104 (ldp): xmit
Vlan1106 (ldp): xmit
Vlan1113 (ldp): xmit/recv
LDP Id: 10.100.1.16:0
Vlan1114 (ldp): xmit
Vlan1115 (ldp): xmit/recv
LDP Id: 10.100.1.101:0
Vlan1116 (ldp): xmit
Vlan1120 (ldp): xmit
Vlan1152 (ldp): xmit
Vlan1166 (ldp): xmit
Vlan1285 (ldp): xmit
Vlan1310 (ldp): xmit
Vlan1709 (ldp): xmit/recv
LDP Id: 10.100.1.11:0
LDP Id: 10.100.100.2:0
LDP Id: 10.100.1.100:0
LDP Id: 10.100.1.15:0
LDP Id: 10.100.1.14:0
LDP Id: 10.100.1.3:0
LDP Id: 10.100.1.5:0
LDP Id: 10.100.1.76:0
Vlan1712 (ldp): xmit/recv
LDP Id: 10.100.100.2:0
LDP Id: 10.100.100.19:0
Vlan1713 (ldp): xmit/recv
LDP Id: 10.100.0.1:0
LDP Id: 10.100.0.2:0
Vlan1746 (ldp): xmit
Vlan1749 (ldp): xmit
Targeted Hellos:
10.100.100.1 -> 10.100.100.2 (ldp): active/passive, xmit/recv
LDP Id: 10.100.100.2:0
10.100.100.1 -> 10.100.100.5 (ldp): active/passive, xmit

LHIT-XC-2# sh mpls ldp discovery
Local LDP Identifier:
10.100.100.2:0
Discovery Sources:
Interfaces:
Vlan1285 (ldp): xmit
Vlan1709 (ldp): xmit/recv
LDP Id: 10.100.100.1:0
LDP Id: 10.100.1.11:0
LDP Id: 10.100.1.100:0
LDP Id: 10.100.1.15:0
LDP Id: 10.100.1.14:0
LDP Id: 10.100.1.3:0
LDP Id: 10.100.1.5:0
LDP Id: 10.100.1.76:0
Vlan1712 (ldp): xmit/recv
LDP Id: 10.100.100.1:0
LDP Id: 10.100.100.19:0
Targeted Hellos:
10.100.100.2 -> 10.100.100.1 (ldp): active/passive, xmit/recv
LDP Id: 10.100.100.1:0
10.100.100.2 -> 10.100.100.5 (ldp): active/passive, xmit

ME3600-LHIT#sh mpls ldp discovery
Local LDP Identifier:
10.100.100.19:0
Discovery Sources:
Interfaces:
Vlan1712 (ldp): xmit/recv
LDP Id: 10.100.100.2:0
LDP Id: 10.100.100.1:0

Please let me know if you need anything else?

LovejitSingh1313 · ‎02-07-2021

I am posting #sh ip bgp all from all three routers.

If you see XC-1 and XC-2 are learning loop1 (10.200.255.255) in vrf LHIT-internal from R3 but R3 is learning no routes in that vrf.

Right now #ME3600-LHIT is not advertising anything else than loop1

ME3600-LHIT#sh ip bgp all
For address family: IPv4 Unicast

For address family: VPNv4 Unicast

BGP table version is 5, local router ID is 10.100.100.19
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale, m multipath, b backup-path, f RT-Filter,
x best-external, a additional-path, c RIB-compressed,
Origin codes: i - IGP, e - EGP, ? - incomplete
RPKI validation codes: V valid, I invalid, N Not found

Network Next Hop Metric LocPrf Weight Path
Route Distinguisher: 53494:2 (default for vrf LHIT-INTERNAL)
*> 10.200.255.255/32
0.0.0.0 0 32768 ?
*> 10.219.0.0/16 0.0.0.0 0 32768 i

For address family: IPv4 Multicast

For address family: VPNv4 Multicast

For address family: MVPNv4 Unicast

LHIT-XC-1(config)#do sh ip bgp all

Route Distinguisher: 53494:2 (default for vrf LHIT-INTERNAL)
*> 0.0.0.0 172.16.201.1 0 32768 ?
*>i 10.200.255.255/32
10.100.100.19 0 100 0 ?
Network Next Hop Metric LocPrf Weight Path
*> 10.201.0.0/16 0.0.0.0 0 32768 i
*> 10.201.1.0/24 0.0.0.0 0 32768 ?
*> 10.201.2.0/24 0.0.0.0 0 32768 ?
*> 10.201.5.0/24 0.0.0.0 0 32768 ?
*> 10.201.7.0/24 172.16.201.1 0 32768 ?
*> 10.201.10.0/24 172.16.10.2 0 32768 ?
*> 10.201.255.0/24 172.16.201.1 0 32768 ?
*> 10.201.255.255/32
0.0.0.0 0 32768 ?
*>i 10.202.1.0/24 10.100.100.2 0 100 0 ?
*>i 10.202.255.255/32
10.100.100.2 0 100 0 ?
*> 10.211.0.0/16 172.16.211.2 0 32768 i
*>i 10.219.0.0/16 10.100.100.19 0 100 0 i
*> 172.16.10.0/29 0.0.0.0 0 32768 ?
*> 172.16.200.0/29 0.0.0.0 0 32768 ?
*> 172.16.201.0/29 0.0.0.0 0 32768 ?
*> 172.16.211.0/30 0.0.0.0 0 32768 ?

LHIT-XC-2# sh ip bgp all

Route Distinguisher: 53494:2 (default for vrf LHIT-INTERNAL)
*>i 0.0.0.0 10.100.100.1 0 100 0 ?
*>i 10.200.255.255/32
10.100.100.19 0 100 0 ?
Network Next Hop Metric LocPrf Weight Path
*>i 10.201.0.0/16 10.100.100.1 0 100 0 i
*>i 10.201.1.0/24 10.100.100.1 0 100 0 ?
*>i 10.201.2.0/24 10.100.100.1 0 100 0 ?
*>i 10.201.5.0/24 10.100.100.1 0 100 0 ?
*>i 10.201.7.0/24 10.100.100.1 0 100 0 ?
*>i 10.201.10.0/24 10.100.100.1 0 100 0 ?
*>i 10.201.255.0/24 10.100.100.1 0 100 0 ?
*>i 10.201.255.255/32
10.100.100.1 0 100 0 ?
*> 10.202.1.0/24 0.0.0.0 0 32768 ?
*> 10.202.255.255/32
0.0.0.0 0 32768 ?
*>i 10.211.0.0/16 10.100.100.1 0 100 0 i
*>i 10.219.0.0/16 10.100.100.19 0 100 0 i
*>i 172.16.10.0/29 10.100.100.1 0 100 0 ?
*>i 172.16.200.0/29 10.100.100.1 0 100 0 ?
*>i 172.16.201.0/29 10.100.100.1 0 100 0 ?
*>i 172.16.211.0/30 10.100.100.1 0 100 0 ?

MHM Cisco World · ‎02-07-2021

I check the RT for all it ok,

it correct

MHM Cisco World · ‎02-07-2021

..

MHM Cisco World · ‎02-07-2021

...

MHM Cisco World · ‎02-07-2021

Try

router bgp

address family ipv4 vrf

redistribute Static subnet

since all Static route is classless

Richard Burts · ‎02-08-2021

There is a lot in these configs to try to understand. While I think about these let me ask a first question: does the issue perhaps relate to the fact that the third router defines the loopback interface as 255.255.255.0 while the other routers define their loopback as 255.255.255.255?

HTH

Rick

Giuseppe Larosa · ‎02-08-2021

Hello @LovejitSingh1313 , @Richard Burts is right the issue is that the backbone loopback on the ME3600 is defined as 10.100.100.19/24 instead of 10.100.100.19/32.

This creates isssues for sure.

Fix the configuration of ME3600 : loop0 and you should be able to make progress

Hope to help

Giuseppe

LovejitSingh1313 · ‎02-08-2021

Hello @Giuseppe Larosa @Richard Burts @MHM Cisco World

I changed Subnet mask of loop0 and clear ip bgp * all on ME3600-LHIT but same issue, its not learning any routes.

Thanks

Giuseppe Larosa · ‎02-08-2021

Hello @LovejitSingh1313 ,

on ME3600

post

show ip bgp vpnv4 all summary

you should see one line for 10.100.100.1 and one line for 10.100.100.2 with non zero prefixes.

if in the rightmost you have not a number but a word like Idle or active the MP BGP sessions did not come up.

in that case

verify also

show ip ospf neig

Hope to help

Giuseppe

MHM Cisco World · ‎02-09-2021

Yes that right if he use different RD but he use same RD so all appear neighbor appear under one RD.

MHM Cisco World · ‎02-08-2021

take one by one OK

1-

MH3600 must redistribute connected "which is SVI"

BUT redistribute with auto-summary "default" make MH3600 redistribute only ClassFull

this is why 10.219.0.0 only appear because VLAN23 is same major subnet

and also static route use ClassFull so all represent with one subnet in show ip bgp all

10.219.0.0/16

solution:- no auto-summary under VRF address family

2-10.200.255.255 it easy advertise to all.

MHM Cisco World · ‎02-08-2021

friend
for 10.219.0.0/16

since it is aggregate and aggregate change the origin and next-hop of original route.

I suspect with that so please do the following :-

1- show ip bgp 10.219.0.0
2- config bgp and use router-id using the loopback as router-id
3-clear ip bgp
4- show ip bgp all
5-show ip bgp 10.219.0.0

please do these steps

LovejitSingh1313 · ‎02-08-2021

Hello @MHM Cisco World

Switch does not allow no auto-summary command in bgo vrf config, If you checked other two switches are without it as well so that should not be problem

Thanks

MHM Cisco World · ‎02-09-2021

If not not under vrf then under bgp