search

FRRouting / frr

The FRRouting Protocol Suite
https://frrouting.org/
Other
3.21k stars 1.24k forks source link

The mpls label is announced but not used #11208

Open Viktort-rf opened 2 years ago

Viktort-rf commented 2 years ago

Describe the bug

To Reproduce

  1. Enabling mpls ldp
  2. (Egress LSR) Use (ip.addr example) "show mpls ldp binding 1.1.1.1/32" and see in dst.addr mpls label in use is ALL "no". And no label was installed in the mpls table "show mpls table".
  3. (P-router) Login other neighbor and use "show mpls ldp binding 1.1.1.1/32" and see in dst.addr mpls label in use one "yes". But all traffic is dropped, because the first host does not know anything about this tag, although he announced it himself

Expected behavior

Egress LSR instal mpls table in LIB and them announcement it his neighbors Screenshots

Versions

Additional context

donaldsharp commented 2 years ago

can you please provide actual configs and some more useful data to help us figure out what is going on?

EasyNetDev commented 2 years ago

Hi,

I notice the seme strange bahavior on my router R02.

OS: Debian Bullseye Kernel: SMP PREEMPT_DYNAMIC Debian 5.19.6-1 FRR: Latest git compiled today 12/09/2022. Also before installing the latest version of FRR on R02 I was running the same version as R01.

I tried to changed from dummy interface to lo without success. It doesn't metter if I'm running dual-stack on IPv4 or IPv6, the behavior is the same. Also I notice today that from time to time it was able to create the labels for incoming prefixes, but I have no clue what is the cause.

Minimal config:

Current configuration:
!
frr version 8.4-dev
frr defaults traditional
hostname R02
log syslog
log facility syslog
log timestamp precision 4
no debug ospf6 message unknown
service integrated-vtysh-config
!
debug mpls ldp discovery hello recv
debug mpls ldp discovery hello sent
debug mpls ldp errors
debug mpls ldp event
debug mpls ldp labels
debug mpls ldp messages recv
debug mpls ldp messages sent
debug mpls ldp zebra
debug mpls ldp sync
!
interface lo
 description Loopback
 ip address 10.100.2.1/32
 ip ospf 1 area 0
 ip ospf passive
 ip router isis EasyNet
 ipv6 address 2a00:ece1:2:f000:8000::2/128
 ipv6 ospf6 area 0
 ipv6 router isis EasyNet
 isis passive
 mpls
 no link-detect
exit
!
interface gi2-0
 description R01-R02 / LINK 2 / BACKBONE
 ip address 10.100.0.10/30
 ip ospf 1 area 0
 ip ospf bfd
 ip ospf cost 200
 ip ospf network point-to-point
 ip router isis EasyNet
 ipv6 address 2a00:ece1:2:f000:8000:1:0:10/126
 ipv6 ospf6 area 0
 ipv6 ospf6 bfd
 ipv6 ospf6 cost 200
 ipv6 ospf6 network point-to-point
 ipv6 router isis EasyNet
 isis bfd
 isis network point-to-point
 mpls
 mpls bgp forwarding
 multicast
exit
!
interface po2
 bandwidth 3000
 description R01-R02 / LINK 1 / via Po13-Po11 / to R01-Po2
 ip address 10.100.0.6/30
 ip ospf 1 area 0
 ip ospf bfd
 ip ospf mpls ldp-sync
 ip ospf network point-to-point
 ip pim
 ip router isis EasyNet
 ipv6 address 2a00:ece1:2:f000:8000:1:0:6/126
 ipv6 ospf6 area 0
 ipv6 ospf6 bfd
 ipv6 ospf6 network point-to-point
 ipv6 router isis EasyNet
 isis bfd
 isis network point-to-point
 mpls
 mpls bgp forwarding
 multicast
exit
!
router ospf 1
 ospf router-id 10.100.2.1
 log-adjacency-changes
 compatible rfc1583
 area 10 stub no-summary
 distance 120
exit
!
router ospf6
 ospf6 router-id 10.100.2.1
 distance 120
exit
!
!
mpls ldp
 router-id 10.100.2.1
 dual-stack transport-connection prefer ipv4
 neighbor 10.100.1.1 password PASSWORD
 !
 address-family ipv4
  discovery transport-address 10.100.2.1
  label local advertise explicit-null
  !
  neighbor 10.100.1.1 targeted
  !
  interface gi2-0
  exit
  !
  interface po2
  exit
  !
  interface tun110
  exit
  !
 exit-address-family
 !
 address-family ipv6
  discovery transport-address 2a00:ece1:2:f000:8000::2
  label local advertise explicit-null
  !
  neighbor 2a00:ece1:2:f000:8000::1 targeted
  !
  interface gi2-0
  exit
  !
  interface po2
  exit
  !
 exit-address-family
 !
exit
!
router isis EasyNet
 net 49.0001.0101.9000.0002.00
 fast-reroute load-sharing disable level-1
 fast-reroute lfa tiebreaker lowest-backup-metric index 1 level-1
 fast-reroute load-sharing disable level-2
exit
!

Output:

R02(config-if)# do sh mpls ldp neighbor
AF   ID              State       Remote Address    Uptime
ipv4 10.100.1.1      OPERATIONAL 10.100.1.1      00:00:46
R02(config-if)# do sh mpls ldp binding
AF   Destination          Nexthop         Local Label Remote Label  In Use
ipv4 10.1.1.64/32         0.0.0.0         19          -                 no
ipv4 10.1.2.8/30          0.0.0.0         20          -                 no
ipv4 10.1.2.12/30         0.0.0.0         21          -                 no
ipv4 10.100.0.4/30        0.0.0.0         exp-null    -                 no
ipv4 10.100.0.8/30        0.0.0.0         exp-null    -                 no
ipv4 10.100.1.0/32        0.0.0.0         22          -                 no
ipv4 10.100.1.1/32        0.0.0.0         23          -                 no
ipv4 10.100.2.1/32        0.0.0.0         exp-null    -                 no
ipv4 10.101.1.12/30       0.0.0.0         24          -                 no
ipv4 89.38.58.2/32        0.0.0.0         exp-null    -                 no
ipv6 2a00:ece1:2:f000:8000::1/128
                          0.0.0.0         16          -                 no
ipv6 2a00:ece1:2:f000:8000::2/128
                          0.0.0.0         exp-null    -                 no
ipv6 2a00:ece1:2:f000:8000:1:0:4/126
                          0.0.0.0         exp-null    -                 no
ipv6 2a00:ece1:2:f000:8000:1:0:8/126
                          0.0.0.0         17          -                 no
ipv6 2a00:ece1:2:f000:8000:1:0:10/126
                          0.0.0.0         exp-null    -                 no
ipv6 2a00:ece1:2:f000:8000:1:1000:0/126
                          0.0.0.0         18          -                 no

R02(config-if)# do sh mpls table
 Inbound Label  Type  Nexthop   Outbound Label
 -----------------------------------------------
 80             BGP   internet  -
 81             BGP   internet  -
 82             BGP   esxi      -
 83             BGP   esxi      -
 84             BGP   servers   -
 85             BGP   servers   -
 86             BGP   mgmt      -
 87             BGP   mgmt      -
 88             BGP   servers2  -
 89             BGP   servers2  -
 90             BGP   vpn       -
 91             BGP   vpn       -
R02(config-if)# do sh ip ospf neighbor

OSPF Instance: 1

Neighbor ID     Pri State           Up Time         Dead Time Address         Interface                        RXmtL RqstL DBsmL
10.100.1.1        1 Full/-          7m42s             31.412s 10.100.0.9      gi2-0:10.100.0.10                    0     0     0
10.100.1.1        1 Full/-          7m42s             31.652s 10.100.0.5      po2:10.100.0.6                       0     0     0

% OSPF is not enabled in vrf default
% OSPF is not enabled in vrf default
% OSPF is not enabled in vrf default
R02(config-if)# do sh ipv6 ospf6 neighbor
Neighbor ID     Pri    DeadTime    State/IfState         Duration I/F[State]
10.100.1.1        1    00:00:38     Full/PointToPoint    00:08:01 gi2-0[PointToPoint]
10.100.1.1        1    00:00:39     Full/PointToPoint    00:08:00 po2[PointToPoint]
R02(config-if)# do sh isis neighbor
Area EasyNet:
  System Id           Interface   L  State        Holdtime SNPA
 R01                 gi2-0       3  Up            30       2020.2020.2020
 R01                 po2         3  Up            29       2020.2020.2020
R02(config-if)# do 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, F - PBR,
       f - OpenFabric,
       > - selected route, * - FIB route, q - queued, r - rejected, b - backup
       t - trapped, o - offload failure

O[1]>* 10.1.1.64/32 [120/67] via 10.100.0.5, po2, weight 1, 00:12:41
O[1]>* 10.1.2.8/30 [120/66] via 10.100.0.5, po2, weight 1, 00:12:41
O[1]>* 10.1.2.12/30 [120/67] via 10.100.0.5, po2, weight 1, 00:12:41
I   10.100.0.4/30 [115/16777224] via 10.100.0.5, po2 inactive, weight 1, 00:00:25
                                 via 10.100.0.9, gi2-0, weight 1, 00:00:25
O[1]   10.100.0.4/30 [120/33] is directly connected, po2, weight 1, 00:13:01
C>* 10.100.0.4/30 is directly connected, po2, 00:13:02
I   10.100.0.8/30 [115/16777224] via 10.100.0.5, po2, weight 1, 00:00:25
                                 via 10.100.0.9, gi2-0 inactive, weight 1, 00:00:25
O[1]   10.100.0.8/30 [120/200] is directly connected, gi2-0, weight 1, 00:13:01
C>* 10.100.0.8/30 is directly connected, gi2-0, 00:13:02
I>* 10.100.1.0/32 [115/20] via 10.100.0.5, po2, weight 1, 00:01:21
  *                        via 10.100.0.9, gi2-0, weight 1, 00:01:21
O[1]   10.100.1.0/32 [120/43] via 10.100.0.5, po2, weight 1, 00:12:41
I>* 10.100.1.1/32 [115/20] via 10.100.0.5, po2, weight 1, 00:01:21
  *                        via 10.100.0.9, gi2-0, weight 1, 00:01:21
O[1]   10.100.1.1/32 [120/43] via 10.100.0.5, po2, weight 1, 00:12:41
O[1]   10.100.2.1/32 [120/0] is directly connected, lo, weight 1, 00:13:01
C>* 10.100.2.1/32 is directly connected, lo, 00:13:02
O[1]>* 10.101.1.12/30 [120/533] via 10.100.0.5, po2, weight 1, 00:12:41
R02(config-if)# do sh ipv6 route
Codes: K - kernel route, C - connected, S - static, R - RIPng,
       O - OSPFv3, I - IS-IS, B - BGP, N - NHRP, T - Table,
       v - VNC, V - VNC-Direct, A - Babel, F - PBR,
       f - OpenFabric,
       > - selected route, * - FIB route, q - queued, r - rejected, b - backup
       t - trapped, o - offload failure

I>* 2a00:ece1:2:f000:8000::1/128 [115/20] via fe80::21b:21ff:fe08:3222, po2, weight 1, 00:03:23
  *                                       via fe80::ae1f:6bff:fe65:37fb, gi2-0, weight 1, 00:03:23
O   2a00:ece1:2:f000:8000::1/128 [120/43] via fe80::21b:21ff:fe08:3222, po2, weight 1, 00:03:41
O   2a00:ece1:2:f000:8000::2/128 [120/10] is directly connected, lo, weight 1, 00:18:33
C>* 2a00:ece1:2:f000:8000::2/128 is directly connected, lo, 00:18:42
O   2a00:ece1:2:f000:8000:1:0:4/126 [120/33] is directly connected, po2, weight 1, 00:18:33
C>* 2a00:ece1:2:f000:8000:1:0:4/126 is directly connected, po2, 00:18:42
I>* 2a00:ece1:2:f000:8000:1:0:8/126 [115/16777224] via fe80::21b:21ff:fe08:3222, po2, weight 1, 00:00:07
  *                                                via fe80::ae1f:6bff:fe65:37fb, gi2-0, weight 1, 00:00:07
O   2a00:ece1:2:f000:8000:1:0:8/126 [120/233] via fe80::21b:21ff:fe08:3222, po2, weight 1, 00:03:41
O   2a00:ece1:2:f000:8000:1:0:10/126 [120/200] is directly connected, gi2-0, weight 1, 00:18:33
C>* 2a00:ece1:2:f000:8000:1:0:10/126 is directly connected, gi2-0, 00:18:42
O>* 2a00:ece1:2:f000:8000:1:1000:0/126 [120/533] via fe80::21b:21ff:fe08:3222, po2, weight 1, 00:18:33
C * fe80::/64 is directly connected, po2.2110, 00:18:42
C * fe80::/64 is directly connected, po2, 00:18:42
C * fe80::/64 is directly connected, po1, 00:18:42
C * fe80::/64 is directly connected, gi1-0, 00:18:42
C * fe80::/64 is directly connected, gi2-0, 00:18:42
C * fe80::/64 is directly connected, gi1-1, 00:18:42
C * fe80::/64 is directly connected, gi0-3, 00:18:42
C * fe80::/64 is directly connected, gi0-2, 00:18:42
C * fe80::/64 is directly connected, gi0-1, 00:18:42
C>* fe80::/64 is directly connected, gi0-0, 00:18:42
R02(config-if)# do sh interface lo
Interface lo is up, line protocol detection is disabled
  Link ups:       0    last: (never)
  Link downs:     0    last: (never)
  vrf: default
  Description: Loopback
  index 1 metric 0 mtu 65536 speed 0
  flags: <UP,LOOPBACK,RUNNING>
  MPLS enabled
  Ignore all v6 routes with linkdown
  Type: Loopback
  inet 10.100.2.1/32
  inet6 2a00:ece1:2:f000:8000::2/128
  Interface Type Other
  Interface Slave Type None
  protodown: off
R02(config-if)# do sh interface gi2-0
Interface gi2-0 is up, line protocol is up
  Link ups:       0    last: (never)
  Link downs:     0    last: (never)
  vrf: default
  Description: R01-R02 / LINK 2 / BACKBONE
  OS Description: Gi2/0
  index 9 metric 0 mtu 9000 speed 1000
  flags: <UP,BROADCAST,RUNNING,MULTICAST>
  MPLS enabled
  Ignore all v4 routes with linkdown
  Ignore all v6 routes with linkdown
  Type: Ethernet
  HWaddr: 0c:c4:7a:97:45:9d
  inet 10.100.0.10/30
  inet6 2a00:ece1:2:f000:8000:1:0:10/126
  inet6 fe80::ec4:7aff:fe97:459d/64
  Interface Type Other
  Interface Slave Type None
  protodown: off
R02(config-if)# do sh interface po2
Interface po2 is up, line protocol is up
  Link ups:       0    last: (never)
  Link downs:     0    last: (never)
  vrf: default
  Description: R01-R02 / LINK 1 / via Po13-Po11 / to R01-Po2
  index 45 metric 0 mtu 9000 speed 3000
  flags: <UP,BROADCAST,RUNNING,MULTICAST>
  MPLS enabled
  Ignore all v4 routes with linkdown
  Ignore all v6 routes with linkdown
  v4 Multicast forwarding is on
  Type: Ethernet
  HWaddr: 00:1b:21:09:05:33
  bandwidth 3000 Mbps
  inet 10.100.0.6/30
  inet6 2a00:ece1:2:f000:8000:1:0:6/126
  inet6 fe80::21b:21ff:fe09:533/64
  Interface Type Other
  Interface Slave Type None
  protodown: off
R02(config-if)#

But on R01 which is working properly (I don't know what is the difference!):

interface gi2-0
 description R01-R02 / LINK 2 / BACKBONE
 ip address 10.100.0.9/30
 ip ospf 1 area 0
 ip ospf bfd
 ip ospf cost 200
 ip ospf network point-to-point
 ip router isis EasyNet
 ipv6 address 2a00:ece1:2:f000:8000:1:0:9/126
 ipv6 ospf6 area 0
 ipv6 ospf6 bfd
 ipv6 ospf6 cost 200
 ipv6 ospf6 network point-to-point
 ipv6 router isis EasyNet
 isis bfd
 isis network point-to-point
 mpls
 multicast
exit
!
interface lo
 ip address 10.100.1.0/32
 ip address 10.100.1.1/32
 ip ospf 1 area 0
 ip ospf passive
 ip router isis EasyNet
 ipv6 address 2a00:ece1:2:f000:8000::1/128
 ipv6 ospf6 area 0
 ipv6 ospf6 passive
 ipv6 router isis EasyNet
 isis circuit-type level-1
 isis passive
 mpls
 no link-detect
exit
!
interface po2
 bandwidth 3000
 description R01-R02 / LINK 1 / via Po11-Po13 / to R02-Po2
 ip address 10.100.0.5/30
 ip ospf 1 area 0
 ip ospf bfd
 ip ospf network point-to-point
 ip pim
 ip router isis EasyNet
 ipv6 address 2a00:ece1:2:f000:8000:1:0:5/126
 ipv6 ospf6 area 0
 ipv6 ospf6 bfd
 ipv6 ospf6 network point-to-point
 ipv6 router isis EasyNet
 isis bfd
 isis network point-to-point
 mpls
 multicast
exit
!
router ospf 1
 ospf router-id 10.100.1.1
 log-adjacency-changes
 compatible rfc1583
 area 10 stub no-summary
 neighbor 10.101.0.2
 neighbor 10.101.0.3
 distance 120
exit
!
router ospf6
 ospf6 router-id 10.100.1.1
 distance 120
exit
!
mpls ldp
 router-id 10.100.1.1
 dual-stack transport-connection prefer ipv4
 neighbor 10.100.2.1 password PASSWORD
 !
 address-family ipv4
  discovery transport-address 10.100.1.1
  label local advertise explicit-null
  !
  neighbor 10.100.2.1 targeted
  !
  neighbor 10.100.10.1 targeted
  !
  interface gi2-0
  exit
  !
  interface po2
  exit
  !
  interface tun110
  exit
  !
 exit-address-family
 !
 address-family ipv6
  discovery transport-address 2a00:ece1:2:f000:8000::1
  label local advertise explicit-null
  !
  neighbor 2a00:ece1:2:f000:8000::2 targeted
  !
  interface gi2-0
  exit
  !
  interface po2
  exit
  !
  interface tun110
  exit
  !
 exit-address-family
 !
exit
!
router isis EasyNet
 net 49.0001.0101.9000.0001.00
 fast-reroute load-sharing disable level-1
 fast-reroute lfa tiebreaker lowest-backup-metric index 1 level-1
 fast-reroute load-sharing disable level-2
 mpls ldp-sync
exit

And the output:

R01(config-if)# do sh ip ospf neighbor

OSPF Instance: 1

Neighbor ID     Pri State           Up Time         Dead Time Address         Interface                        RXmtL RqstL DBsmL
10.1.1.64         1 Full/-          2d09h13m          35.831s 10.1.2.10       po2.2110:10.1.2.9                    0     0     0
10.100.2.1        1 Full/-          17m36s            33.753s 10.100.0.6      po2:10.100.0.5                       0     0     0
10.100.2.1        1 Full/-          17m36s            33.753s 10.100.0.10     gi2-0:10.100.0.9                     0     0     0
R01(config-if)# do sh ipv6 ospf6 neighbor
Neighbor ID     Pri    DeadTime    State/IfState         Duration I/F[State]
10.100.2.1        1    00:00:32     Full/PointToPoint    00:17:54 gi2-0[PointToPoint]
10.100.2.1        1    00:00:32     Full/PointToPoint    00:17:53 po2[PointToPoint]
R01(config-if)# do sh isis neighbor
Area EasyNet:
  System Id           Interface   L  State        Holdtime SNPA
 R02                 gi2-0       3  Up            29       2020.2020.2020
 R02                 po2         3  Up            27       2020.2020.2020
R01(config-if)# do 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, F - PBR,
       f - OpenFabric,
       > - selected route, * - FIB route, q - queued, r - rejected, b - backup
       t - trapped, o - offload failure

S>* 0.0.0.0/0 [1/0] is directly connected, internet (vrf internet), weight 1, 2d09h17m
O[1]>* 10.1.1.64/32 [120/34] via 10.1.2.10, po2.2110, weight 1, 2d09h14m
O[1]   10.1.2.8/30 [120/33] is directly connected, po2.2110, weight 1, 2d09h14m
C>* 10.1.2.8/30 is directly connected, po2.2110, 2d09h14m
O[1]>* 10.1.2.12/30 [120/34] via 10.1.2.10, po2.2110, weight 1, 01:43:35
I   10.100.0.4/30 [115/20] via 10.100.0.6, po2 inactive, weight 1, 00:05:09
                           via 10.100.0.10, gi2-0, weight 1, 00:05:09
O[1]   10.100.0.4/30 [120/33] is directly connected, po2, weight 1, 03:09:21
C>* 10.100.0.4/30 is directly connected, po2, 2d09h14m
I   10.100.0.8/30 [115/20] via 10.100.0.6, po2, weight 1, 00:05:09
                           via 10.100.0.10, gi2-0 inactive, weight 1, 00:05:09
O[1]   10.100.0.8/30 [120/200] is directly connected, gi2-0, weight 1, 01:44:11
C>* 10.100.0.8/30 is directly connected, gi2-0, 01:44:11
O[1]   10.100.1.0/32 [120/0] is directly connected, lo, weight 1, 00:02:47
C>* 10.100.1.0/32 is directly connected, lo, 00:02:47
O[1]   10.100.1.1/32 [120/0] is directly connected, lo, weight 1, 00:02:51
C>* 10.100.1.1/32 is directly connected, lo, 00:02:53
I>* 10.100.2.1/32 [115/20] via 10.100.0.6, po2, label IPv4 Explicit Null, weight 1, 00:05:09
  *                        via 10.100.0.10, gi2-0, label IPv4 Explicit Null, weight 1, 00:05:09
O[1]   10.100.2.1/32 [120/33] via 10.100.0.6, po2, weight 1, 00:17:54
O[1]   10.101.1.12/30 [120/500] is directly connected, tun110, weight 1, 2d09h17m
C>* 10.101.1.12/30 is directly connected, tun110, 2d09h17m
S>* 10.190.252.0/24 [1/0] unreachable (blackhole), weight 1, 2d09h17m
R01(config-if)# do sh ipv6 route
Codes: K - kernel route, C - connected, S - static, R - RIPng,
       O - OSPFv3, I - IS-IS, B - BGP, N - NHRP, T - Table,
       v - VNC, V - VNC-Direct, A - Babel, F - PBR,
       f - OpenFabric,
       > - selected route, * - FIB route, q - queued, r - rejected, b - backup
       t - trapped, o - offload failure

O   2a00:ece1:2:f000:8000::1/128 [120/10] is directly connected, lo, weight 1, 00:03:26
C>* 2a00:ece1:2:f000:8000::1/128 is directly connected, lo, 00:03:32
O   2a00:ece1:2:f000:8000::2/128 [120/43] via fe80::21b:21ff:fe09:533, po2, weight 1, 00:03:39
I>* 2a00:ece1:2:f000:8000::2/128 [115/20] via fe80::21b:21ff:fe09:533, po2, label IPv6 Explicit Null, weight 1, 00:05:21
  *                                       via fe80::ec4:7aff:fe97:459d, gi2-0, label IPv6 Explicit Null, weight 1, 00:05:21
O   2a00:ece1:2:f000:8000:1:0:4/126 [120/33] is directly connected, po2, weight 1, 00:03:26
C>* 2a00:ece1:2:f000:8000:1:0:4/126 is directly connected, po2, 2d09h14m
O   2a00:ece1:2:f000:8000:1:0:8/126 [120/200] is directly connected, gi2-0, weight 1, 00:03:26
C>* 2a00:ece1:2:f000:8000:1:0:8/126 is directly connected, gi2-0, 01:44:23
O   2a00:ece1:2:f000:8000:1:0:10/126 [120/233] via fe80::21b:21ff:fe09:533, po2, weight 1, 00:03:39
I>* 2a00:ece1:2:f000:8000:1:0:10/126 [115/20] via fe80::21b:21ff:fe09:533, po2, label IPv6 Explicit Null, weight 1, 00:05:21
  *                                           via fe80::ec4:7aff:fe97:459d, gi2-0, label IPv6 Explicit Null, weight 1, 00:05:21
O   2a00:ece1:2:f000:8000:1:1000:0/126 [120/500] is directly connected, tun110, weight 1, 00:03:39
C>* 2a00:ece1:2:f000:8000:1:1000:0/126 is directly connected, tun110, 2d09h17m
C * fe80::/64 is directly connected, gi2-0, 01:44:23
C * fe80::/64 is directly connected, gi0-0, 2d09h13m
C * fe80::/64 is directly connected, gi0-3, 2d09h13m
C * fe80::/64 is directly connected, gi0-1, 2d09h13m
C * fe80::/64 is directly connected, gi0-2, 2d09h13m
C * fe80::/64 is directly connected, po2.2110, 2d09h14m
C * fe80::/64 is directly connected, po2, 2d09h14m
C * fe80::/64 is directly connected, po1, 2d09h15m
C * fe80::/64 is directly connected, gi1-0, 2d09h15m
C * fe80::/64 is directly connected, gi1-1, 2d09h15m
C * fe80::/64 is directly connected, tun110, 2d09h17m
C * fe80::/64 is directly connected, lo1, 2d09h17m
C>* fe80::/64 is directly connected, lo0, 2d09h17m
R01(config-if)# do sh mpls ldp neighbor
AF   ID              State       Remote Address    Uptime
ipv4 10.100.2.1      OPERATIONAL 10.100.2.1      00:00:26
R01(config-if)# do sh mpls ldp binding
AF   Destination          Nexthop         Local Label Remote Label  In Use
ipv4 10.1.1.64/32         10.100.2.1      exp-null    19                no
ipv4 10.1.2.8/30          10.100.2.1      exp-null    20                no
ipv4 10.1.2.12/30         10.100.2.1      exp-null    21                no
ipv4 10.100.0.4/30        10.100.2.1      exp-null    exp-null          no
ipv4 10.100.0.8/30        10.100.2.1      exp-null    exp-null          no
ipv4 10.100.1.0/32        10.100.2.1      exp-null    22                no
ipv4 10.100.1.1/32        10.100.2.1      exp-null    23                no
ipv4 10.100.2.1/32        10.100.2.1      20          exp-null         yes
ipv4 10.101.1.12/30       10.100.2.1      exp-null    24                no
ipv4 89.38.58.2/32        10.100.2.1      21          exp-null         yes
ipv6 2a00:ece1:2:f000:8000::1/128
                          10.100.2.1      exp-null    16                no
ipv6 2a00:ece1:2:f000:8000::2/128
                          10.100.2.1      16          exp-null         yes
ipv6 2a00:ece1:2:f000:8000:1:0:4/126
                          10.100.2.1      exp-null    exp-null          no
ipv6 2a00:ece1:2:f000:8000:1:0:8/126
                          10.100.2.1      exp-null    17                no
ipv6 2a00:ece1:2:f000:8000:1:0:10/126
                          10.100.2.1      19          exp-null         yes
ipv6 2a00:ece1:2:f000:8000:1:1000:0/126
                          10.100.2.1      exp-null    18                no

R01(config-if)# do sh mpls table
 Inbound Label  Type  Nexthop                   Outbound Label
 -------------------------------------------------------------------
 16             LDP   fe80::ec4:7aff:fe97:459d  IPv6 Explicit Null
 16             LDP   fe80::21b:21ff:fe09:533   IPv6 Explicit Null
 19             LDP   fe80::ec4:7aff:fe97:459d  IPv6 Explicit Null
 19             LDP   fe80::21b:21ff:fe09:533   IPv6 Explicit Null
 20             LDP   10.100.0.10               IPv4 Explicit Null
 20             LDP   10.100.0.6                IPv4 Explicit Null
 21             LDP   10.100.0.10               IPv4 Explicit Null
 21             LDP   10.100.0.6                IPv4 Explicit Null
 80             BGP   servers                   -
 81             BGP   servers                   -
 82             BGP   mgmt                      -
 83             BGP   mgmt                      -
 84             BGP   internet                  -
 85             BGP   internet                  -
 86             BGP   ch                        -
 87             BGP   ch                        -
 88             BGP   servers2                  -
 89             BGP   servers2                  -
 90             BGP   vpn                       -
 91             BGP   vpn                       -
 92             BGP   esxi                      -
 93             BGP   esxi                      -
 94             BGP   aperolspritz              -
 95             BGP   aperolspritz              -
 96             BGP   romcolor                  -
 97             BGP   romcolor                  -
R01(config-if)# do sh interface lo
Interface lo is up, line protocol detection is disabled
  Link ups:       0    last: (never)
  Link downs:     0    last: (never)
  vrf: default
  index 1 metric 0 mtu 65536 speed 0
  flags: <UP,LOOPBACK,RUNNING>
  MPLS enabled
  Ignore all v6 routes with linkdown
  Type: Loopback
  inet 10.100.1.0/32
  inet 10.100.1.1/32
  inet6 2a00:ece1:2:f000:8000::1/128
  Interface Type Other
  Interface Slave Type None
  protodown: off
R01(config-if)# do sh interface gi2-0
Interface gi2-0 is up, line protocol is up
  Link ups:      13    last: 2022/09/12 19:22:17.53
  Link downs:    13    last: 2022/09/12 19:22:14.78
  vrf: default
  Description: R01-R02 / LINK 2 / BACKBONE
  OS Description: Gi2/0
  index 9 metric 0 mtu 9000 speed 1000
  flags: <UP,BROADCAST,RUNNING,MULTICAST>
  MPLS enabled
  Ignore all v4 routes with linkdown
  Ignore all v6 routes with linkdown
  Type: Ethernet
  HWaddr: ac:1f:6b:65:37:fb
  inet 10.100.0.9/30
  inet6 2a00:ece1:2:f000:8000:1:0:9/126
  inet6 fe80::ae1f:6bff:fe65:37fb/64
  Interface Type Other
  Interface Slave Type None
  protodown: off
R01(config-if)# do sh interface po2
Interface po2 is up, line protocol is up
  Link ups:      45    last: 2022/09/12 19:07:43.19
  Link downs:    16    last: 2022/09/10 11:49:24.81
  vrf: default
  Description: R01-R02 / LINK 1 / via Po11-Po13 / to R02-Po2
  index 42 metric 0 mtu 9000 speed 3000
  flags: <UP,BROADCAST,RUNNING,MULTICAST>
  MPLS enabled
  Ignore all v4 routes with linkdown
  Ignore all v6 routes with linkdown
  v4 Multicast forwarding is on
  Type: Ethernet
  HWaddr: 00:1b:21:08:32:22
  bandwidth 3000 Mbps
  inet 10.100.0.5/30
  inet6 fe80::21b:21ff:fe08:3222/64
  inet6 2a00:ece1:2:f000:8000:1:0:5/126
  Interface Type Other
  Interface Slave Type None
  protodown: off
R01(config-if)#
EasyNetDev commented 2 years ago

Wow! I tried to get the logs of LDP and after I killed the ldpd and it was restarted by watchfrr, now I'm getting the routes installed in the table! If I'm doing systemctl restart frr, it doesn't install the router via MPLS.

Please find the logs from LDP daemon in the attachment ldpd bug on starting.txt

Also I'm adding the logs when I did killall ldpd and the it worked. ldpd when is working.txt

I notice this in the logs: Not working:

Sep 12 21:52:59 R02 ldpd[10164]: zebra[in]: route add 2a00:ece1:2:f000:8000::2/128 nexthop :: ifindex 0 (connected)
Sep 12 21:52:59 R02 ldpd[10164]: zebra[in]: route add 2a00:ece1:2:f000:8000:1:0:4/126 nexthop :: ifindex 0 (connected)
Sep 12 21:52:59 R02 ldpd[10164]: zebra[in]: route add 2a00:ece1:2:f000:8000:1:0:10/126 nexthop :: ifindex 0 (connected)
Sep 12 21:52:59 R02 ldpd[10164]: zebra[in]: route add 2a00:ece1:2:f000:8000::1/128 nexthop fe80::21b:21ff:fe08:3222 ifindex 45 (ospf6)
Sep 12 21:52:59 R02 ldpd[10164]: zebra[in]: route add 2a00:ece1:2:f000:8000:1:0:8/126 nexthop fe80::21b:21ff:fe08:3222 ifindex 45 (ospf6)
Sep 12 21:52:59 R02 ldpd[10164]: zebra[out]: prefix 2a00:ece1:2:f000:8000::1/128 nexthop fe80::ae1f:6bff:fe65:37fb ifindex 9 labels 16/- (delete)
Sep 12 21:52:59 R02 ldpd[10164]: zebra[out]: prefix 2a00:ece1:2:f000:8000::1/128 nexthop fe80::21b:21ff:fe08:3222 ifindex 45 labels 16/- (add)
Sep 12 21:52:59 R02 ldpd[10164]: zebra[in]: route add 2a00:ece1:2:f000:8000:1:1000:0/126 nexthop fe80::21b:21ff:fe08:3222 ifindex 45 (ospf6)
Sep 12 21:52:59 R02 ldpd[10164]: zebra[out]: prefix 2a00:ece1:2:f000:8000:1:0:8/126 nexthop fe80::ae1f:6bff:fe65:37fb ifindex 9 labels 17/- (delete)
Sep 12 21:52:59 R02 ldpd[10164]: zebra[out]: prefix 2a00:ece1:2:f000:8000:1:0:8/126 nexthop fe80::21b:21ff:fe08:3222 ifindex 45 labels 17/- (add)
Sep 12 21:52:59 R02 ldpd[10164]: zebra[out]: prefix 2a00:ece1:2:f000:8000:1:1000:0/126 nexthop fe80::ae1f:6bff:fe65:37fb ifindex 9 labels 18/- (delete)
Sep 12 21:52:59 R02 ldpd[10164]: zebra[out]: prefix 2a00:ece1:2:f000:8000:1:1000:0/126 nexthop fe80::21b:21ff:fe08:3222 ifindex 45 labels 18/- (add)

vs working:

Sep 12 21:46:11 R02 ldpd[8596]: zebra[in]: route add 10.101.1.12/30 nexthop 10.100.0.5 ifindex 45 (ospf)
Sep 12 21:46:11 R02 ldpd[8596]: zebra[in]: route add 2a00:ece1:2:f000:8000::1/128 nexthop fe80::21b:21ff:fe08:3222 ifindex 45 (isis)
Sep 12 21:46:11 R02 ldpd[8596]: zebra[in]: route add 2a00:ece1:2:f000:8000::1/128 nexthop fe80::ae1f:6bff:fe65:37fb ifindex 9 (isis)
Sep 12 21:46:11 R02 ldpd[8596]: msg[out]: label mapping: lsr-id 10.100.1.1, fec 10.101.1.12/30, label 21
Sep 12 21:46:11 R02 ldpd[8596]: zebra[out]: prefix 10.101.1.12/30 nexthop 10.100.0.5 ifindex 45 labels 21/exp-null (add)
Sep 12 21:46:11 R02 ldpd[8596]: zebra[out]: prefix 10.101.1.12/30 nexthop 10.100.0.5 ifindex 45 labels 21/exp-null (add)
Sep 12 21:46:11 R02 ldpd[8596]: zebra[in]: route add 2a00:ece1:2:f000:8000:1:0:8/126 nexthop fe80::21b:21ff:fe08:3222 ifindex 45 (isis)
Sep 12 21:46:11 R02 ldpd[8596]: zebra[in]: route add 2a00:ece1:2:f000:8000:1:0:8/126 nexthop fe80::ae1f:6bff:fe65:37fb ifindex 9 (isis)
Sep 12 21:46:11 R02 ldpd[8596]: msg[out]: label mapping: lsr-id 10.100.1.1, fec 2a00:ece1:2:f000:8000::1/128, label 22
Sep 12 21:46:11 R02 ldpd[8596]: zebra[out]: prefix 2a00:ece1:2:f000:8000::1/128 nexthop fe80::ae1f:6bff:fe65:37fb ifindex 9 labels 22/exp-null (add)
Sep 12 21:46:11 R02 ldpd[8596]: zebra[out]: prefix 2a00:ece1:2:f000:8000::1/128 nexthop fe80::ae1f:6bff:fe65:37fb ifindex 9 labels 22/exp-null (add)
Sep 12 21:46:11 R02 ldpd[8596]: zebra[out]: prefix 2a00:ece1:2:f000:8000::1/128 nexthop fe80::21b:21ff:fe08:3222 ifindex 45 labels 22/exp-null (add)
Sep 12 21:46:11 R02 ldpd[8596]: zebra[out]: prefix 2a00:ece1:2:f000:8000::1/128 nexthop fe80::21b:21ff:fe08:3222 ifindex 45 labels 22/exp-null (add)
Sep 12 21:46:11 R02 ldpd[8596]: zebra[out]: prefix 2a00:ece1:2:f000:8000::1/128 nexthop fe80::ae1f:6bff:fe65:37fb ifindex 9 labels 22/exp-null (add)
Sep 12 21:46:11 R02 ldpd[8596]: zebra[out]: prefix 2a00:ece1:2:f000:8000::1/128 nexthop fe80::21b:21ff:fe08:3222 ifindex 45 labels 22/exp-null (add)
Sep 12 21:46:11 R02 ldpd[8596]: zebra[in]: route add 2a00:ece1:2:f000:8000:1:1000:0/126 nexthop fe80::21b:21ff:fe08:3222 ifindex 45 (ospf6)
Sep 12 21:46:11 R02 ldpd[8596]: msg[out]: label mapping: lsr-id 10.100.1.1, fec 2a00:ece1:2:f000:8000:1:0:8/126, label 23
Sep 12 21:46:11 R02 ldpd[8596]: zebra[out]: prefix 2a00:ece1:2:f000:8000:1:0:8/126 nexthop fe80::ae1f:6bff:fe65:37fb ifindex 9 labels 23/exp-null (add)
Sep 12 21:46:11 R02 ldpd[8596]: zebra[out]: prefix 2a00:ece1:2:f000:8000:1:0:8/126 nexthop fe80::ae1f:6bff:fe65:37fb ifindex 9 labels 23/exp-null (add)
Sep 12 21:46:11 R02 ldpd[8596]: zebra[out]: prefix 2a00:ece1:2:f000:8000:1:0:8/126 nexthop fe80::21b:21ff:fe08:3222 ifindex 45 labels 23/exp-null (add)
Sep 12 21:46:11 R02 ldpd[8596]: zebra[out]: prefix 2a00:ece1:2:f000:8000:1:0:8/126 nexthop fe80::21b:21ff:fe08:3222 ifindex 45 labels 23/exp-null (add)
Sep 12 21:46:11 R02 ldpd[8596]: zebra[out]: prefix 2a00:ece1:2:f000:8000:1:0:8/126 nexthop fe80::ae1f:6bff:fe65:37fb ifindex 9 labels 23/exp-null (add)
Sep 12 21:46:11 R02 ldpd[8596]: zebra[out]: prefix 2a00:ece1:2:f000:8000:1:0:8/126 nexthop fe80::21b:21ff:fe08:3222 ifindex 45 labels 23/exp-null (add)
Sep 12 21:46:11 R02 ldpd[8596]: msg[out]: label mapping: lsr-id 10.100.1.1, fec 2a00:ece1:2:f000:8000:1:1000:0/126, label 24
Sep 12 21:46:11 R02 ldpd[8596]: zebra[out]: prefix 2a00:ece1:2:f000:8000:1:1000:0/126 nexthop fe80::21b:21ff:fe08:3222 ifindex 45 labels 24/exp-null (add)
Sep 12 21:46:11 R02 ldpd[8596]: zebra[out]: prefix 2a00:ece1:2:f000:8000:1:1000:0/126 nexthop fe80::21b:21ff:fe08:3222 ifindex 45 labels 24/exp-null (add)
Sep 12 21:46:11 R02 ldpd[8596]: msg[in]: label mapping: lsr-id 10.100.1.1, fec 2a00:ece1:2:f000:8000::2/128, label 16
Sep 12 21:46:11 R02 ldpd[8596]: msg[in]: label mapping: lsr-id 10.100.1.1, fec 2a00:ece1:2:f000:8000:1:0:10/126, label 19
Sep 12 21:46:14 R02 ldpd[8596]: discovery[recv]: iface gi2-0 lsr-id 10.100.1.1 transport-address 10.100.1.1 holdtime 15 (dual stack TLV present)

It doesn't add exp-null.

EasyNetDev commented 1 year ago

Hi,

There is any updates about this bug?

EasyNetDev commented 1 year ago

Hi,

Any progress on this bug? Do you need more data?

github-actions[bot] commented 1 year ago

This issue is stale because it has been open 180 days with no activity. Comment or remove the autoclose label in order to avoid having this issue closed.