Hi Experts,
I'm trying to use BFD between PE and CE, but the session never comes UP. The configuration is pretty simple.
Interface xx
bfd interval 150 min_rx 150 multiplier 3
router bgp xxxx
neighbor x.x.x.x fall-over bfd
Follow debug messages:
Oct 26 12:11:19: BFD-DEBUG EVENT: bfd_neighbor - action:CREATE, proc/sub:4/0, id b:GigabitEthernet0/2, neighbor:x.x.x.x act
Oct 26 12:11:19: BFD_WL: ???: initializing credits to 24
Oct 26 12:11:19: BFD-DEBUG Packet: Rx IP:x.x.x.x ld/rd:1/0 diag:0 Down cnt:1 ttl:254 (0)
Oct 26 12:11:19: BFD-DEBUG Event: V1 FSM ld:3 event:RX DOWN state:DOWN (0)
Oct 26 12:11:19: BFD-DEBUG Packet: Tx IP:x.x.x.x ld/rd:3/1 diag:0 Init cnt:1 (0)
Oct 26 12:11:20: BFD-DEBUG Event: V1 FSM ld:3 event:RX DOWN state:INIT (0)
Oct 26 12:11:21: BFD-DEBUG Event: V1 FSM ld:3 event:RX DOWN state:INIT (0)
Oct 26 12:11:22: BFD-DEBUG Event: V1 FSM ld:3 event:RX DOWN state:INIT (0)
Oct 26 12:11:23: BFD-DEBUG Event: V1 FSM ld:3 event:RX DOWN state:INIT (0)
Oct 26 12:11:24: BFD-DEBUG Event: V1 FSM ld:3 event:RX DOWN state:INIT (0)
Oct 26 12:11:25: BFD-DEBUG Event: V1 FSM ld:3 event:RX DOWN state:INIT (0)
Oct 26 12:11:26: BFD-DEBUG Event: V1 FSM ld:3 event:RX DOWN state:INIT (0)
Oct 26 12:11:26: BFD-DEBUG EVENT: bfd_neighbor - action:CREATE, proc/sub:4/0, id b:GigabitEthernet0/1, neighbor:x.x.x.x act
Oct 26 12:11:26: BFD_WL: ???: initializing credits to 24
Oct 26 12:11:26: BFD-DEBUG Event: V1 FSM ld:1 event:Session create state:DOWN (0)
Oct 26 12:11:26: BFD-DEBUG Packet: Tx IP:x.x.x.x ld/rd:1/0 diag:0 Down cnt:1 (0)
Oct 26 12:11:26: BFD-DEBUG Packet: Rx IP:x.x.x.x ld/rd:1/0 diag:0 Down cnt:1 ttl:254 (0)
Oct 26 12:11:26: BFD-DEBUG Event: V1 FSM ld:1 event:RX DOWN state:DOWN (0)
Oct 26 12:11:26: BFD-DEBUG Packet: Tx IP:x.x.x.x ld/rd:1/1 diag:0 Init cnt:1 (0)
Oct 26 12:11:27: BFD-DEBUG Event: V1 FSM ld:3 event:RX DOWN state:INIT (0)
Oct 26 12:11:27: BFD-DEBUG Event: V1 FSM ld:1 event:RX DOWN state:INIT (0)
Oct 26 12:11:27: BFD-DEBUG Event: V1 FSM ld:3 event:RX DOWN state:INIT (0)
Oct 26 12:11:28: BFD-DEBUG Event: V1 FSM ld:1 event:RX DOWN state:INIT (0)
Oct 26 12:11:28: BFD-DEBUG Event: V1 FSM ld:3 event:RX DOWN state:INIT (0)
Oct 26 12:11:29: BFD-DEBUG Event: V1 FSM ld:1 event:RX DOWN state:INIT (0)
Oct 26 12:11:29: BFD-DEBUG Event: V1 FSM ld:3 event:RX DOWN state:INIT (0)
Oct 26 12:11:30: BFD-DEBUG Event: V1 FSM ld:1 event:RX DOWN state:INIT (0)
Oct 26 12:11:30: BFD-DEBUG Event: V1 FSM ld:3 event:RX DOWN state:INIT (0)
sh bfd nei deta
NeighAddr LD/RD RH/RS State Int
x.x.x.x 3/1 Down Init Gi0/2
OurAddr: x.x.x.x
Local Diag: 0, Demand mode: 0, Poll bit: 0
MinTxInt: 1000000, MinRxInt: 1000000, Multiplier: 3
Received MinRxInt: 1000000, Received Multiplier: 3
Holddown (hits): 2476(0), Hello (hits): 1000(9104)
Rx Count: 1215, Rx Interval (ms) min/max/avg: 756/1004/876 last: 524 ms ago
Tx Count: 1207, Tx Interval (ms) min/max/avg: 756/1080/882 last: 148 ms ago
Elapsed time watermarks: 0 0 (last: 0)
Registered protocols: BGP
Last packet: Version: 1 - Diagnostic: 0
State bit: Down - Demand bit: 0
Poll bit: 0 - Final bit: 0
Multiplier: 3 - Length: 24
My Discr.: 1 - Your Discr.: 0
Min tx interval: 1000000 - Min rx interval: 1000000
Min Echo interval: 0
NeighAddr LD/RD RH/RS State Int
x.x.x.x 1/1 Down Init Gi0/1
OurAddr: x.x.x.x
Local Diag: 0, Demand mode: 0, Poll bit: 0
MinTxInt: 1000000, MinRxInt: 1000000, Multiplier: 3
Received MinRxInt: 1000000, Received Multiplier: 3
Holddown (hits): 2240(0), Hello (hits): 1000(9087)
Rx Count: 1211, Rx Interval (ms) min/max/avg: 756/1008/879 last: 764 ms ago
Tx Count: 1212, Tx Interval (ms) min/max/avg: 756/1040/879 last: 208 ms ago
Elapsed time watermarks: 0 0 (last: 0)
Registered protocols: BGP
Last packet: Version: 1 - Diagnostic: 0
State bit: Down - Demand bit: 0
Poll bit: 0 - Final bit: 0
Multiplier: 3 - Length: 24
My Discr.: 1 - Your Discr.: 0
Min tx interval: 1000000 - Min rx interval: 1000000
Min Echo interval: 0
Appreciate if you guys help me with this matter.
Regards.
Paulo Varanda
interface GigabitEthernet0/1
description MPLS_EBT_RJO/IP/19171
bandwidth 16000
ip address 200.179.218.70 255.255.255.252
no ip proxy-arp
load-interval 30
duplex full
speed 100
no cdp enable
bfd interval 150 min_rx 150 multiplier 3
max-reserved-bandwidth 97
service-policy output EGRESS_RJO
end
######################################################
interface GigabitEthernet0/2
description MPLS_EBT_RJO/IP/19172
bandwidth 16000
ip address 200.172.254.26 255.255.255.252
no ip proxy-arp
load-interval 30
duplex full
speed 100
no cdp enable
bfd interval 150 min_rx 150 multiplier 3
max-reserved-bandwidth 97
service-policy output EGRESS_RJO
end
#######################################################
router bgp 65031
bgp log-neighbor-changes
neighbor 10.255.255.9 remote-as 65510
neighbor 200.172.254.25 remote-as 4230
neighbor 200.172.254.25 fall-over bfd
neighbor 200.179.218.69 remote-as 4230
neighbor 200.179.218.69 fall-over bfd
Abaixo as mensagens de debug do BFD:
Oct 26 12:11:19: BFD-DEBUG EVENT: bfd_neighbor - action:CREATE, proc/sub:4/0, id b:GigabitEthernet0/2, neighbor:200.172.254.25 act
Oct 26 12:11:19: BFD_WL: ???: initializing credits to 24
Oct 26 12:11:19: BFD-DEBUG Packet: Rx IP:200.172.254.25 ld/rd:1/0 diag:0 Down cnt:1 ttl:254 (0)
Oct 26 12:11:19: BFD-DEBUG Event: V1 FSM ld:3 event:RX DOWN state:DOWN (0)
Oct 26 12:11:19: BFD-DEBUG Packet: Tx IP:200.172.254.25 ld/rd:3/1 diag:0 Init cnt:1 (0)
Oct 26 12:11:20: BFD-DEBUG Event: V1 FSM ld:3 event:RX DOWN state:INIT (0)
Oct 26 12:11:21: BFD-DEBUG Event: V1 FSM ld:3 event:RX DOWN state:INIT (0)
Oct 26 12:11:22: BFD-DEBUG Event: V1 FSM ld:3 event:RX DOWN state:INIT (0)
Oct 26 12:11:23: BFD-DEBUG Event: V1 FSM ld:3 event:RX DOWN state:INIT (0)
Oct 26 12:11:24: BFD-DEBUG Event: V1 FSM ld:3 event:RX DOWN state:INIT (0)
Oct 26 12:11:25: BFD-DEBUG Event: V1 FSM ld:3 event:RX DOWN state:INIT (0)
Oct 26 12:11:26: BFD-DEBUG Event: V1 FSM ld:3 event:RX DOWN state:INIT (0)
Oct 26 12:11:26: BFD-DEBUG EVENT: bfd_neighbor - action:CREATE, proc/sub:4/0, id b:GigabitEthernet0/1, neighbor:200.179.218.69 act
Oct 26 12:11:26: BFD_WL: ???: initializing credits to 24
Oct 26 12:11:26: BFD-DEBUG Event: V1 FSM ld:1 event:Session create state:DOWN (0)
Oct 26 12:11:26: BFD-DEBUG Packet: Tx IP:200.179.218.69 ld/rd:1/0 diag:0 Down cnt:1 (0)
Oct 26 12:11:26: BFD-DEBUG Packet: Rx IP:200.179.218.69 ld/rd:1/0 diag:0 Down cnt:1 ttl:254 (0)
Oct 26 12:11:26: BFD-DEBUG Event: V1 FSM ld:1 event:RX DOWN state:DOWN (0)
Oct 26 12:11:26: BFD-DEBUG Packet: Tx IP:200.179.218.69 ld/rd:1/1 diag:0 Init cnt:1 (0)
Oct 26 12:11:27: BFD-DEBUG Event: V1 FSM ld:3 event:RX DOWN state:INIT (0)
Oct 26 12:11:27.385: %SYS-5-CONFIG_I: Configured from console by paulo on vty0 (192.168.20.151)
Oct 26 12:11:27: BFD-DEBUG Event: V1 FSM ld:1 event:RX DOWN state:INIT (0)
Oct 26 12:11:27: BFD-DEBUG Event: V1 FSM ld:3 event:RX DOWN state:INIT (0)
Oct 26 12:11:28: BFD-DEBUG Event: V1 FSM ld:1 event:RX DOWN state:INIT (0)
Oct 26 12:11:28: BFD-DEBUG Event: V1 FSM ld:3 event:RX DOWN state:INIT (0)
Oct 26 12:11:29: BFD-DEBUG Event: V1 FSM ld:1 event:RX DOWN state:INIT (0)
Oct 26 12:11:29: BFD-DEBUG Event: V1 FSM ld:3 event:RX DOWN state:INIT (0)
Oct 26 12:11:30: BFD-DEBUG Event: V1 FSM ld:1 event:RX DOWN state:INIT (0)
Oct 26 12:11:30: BFD-DEBUG Event: V1 FSM ld:3 event:RX DOWN state:INIT (0)
