BFD and Juniper?
Leighton, Russell
leightr at amazon.com
Wed Aug 19 15:25:32 CEST 2015
Thanks for the questions.
I’m using eBGP.
I didn’t know link-local would be an issue. It is easy to change to I will test that.
From: Olivier Benghozi [mailto:olivier.benghozi at wifirst.fr]
Sent: Wednesday, August 19, 2015 3:55 AM
To: Leighton, Russell
Cc: bird-users at network.cz
Subject: Re: BFD and Juniper?
So you're trying to use BFD with iBGP, or eBGP?
iBGP is multihop by nature, so BFD would also be...
Anyway, did you try to use something else than APIPA addressing (Link-Local only), that might interfere with what you're trying to do?
Le 19 août 2015 à 02:21, Leighton, Russell <leightr at amazon.com<mailto:leightr at amazon.com>> a écrit :
This is the Juniper trace below. If anyone can see what is wrong that would be very helpful.
Russ
--- 8< ---
I see “MultiHop (64) len 1: (hex) 01” being sent from Bird but I have no mutlihop configured and the routers are directly connected. Is that an issue?
Juniper Trace when I restart bird (169.254.255.1) on one of my routers (169.254.255.3) :
Aug 15 22:40:38 Received Downstream RcvPkt (19) len 99:
Aug 15 22:40:38 IfIndex (3) len 4: 65546
Aug 15 22:40:38 Protocol (1) len 1: BFD
Aug 15 22:40:38 SrcAddr (5) len 8: 169.254.255.1
Aug 15 22:40:38 DestAddr (8) len 8: 169.254.255.3
Aug 15 22:40:38 Data (9) len 24: (hex) 20 40 05 18 1a 02 af 59 00 00 00 00 00 0f 42 40 00 00 27
Aug 15 22:40:38 PktError (26) len 4: 0
Aug 15 22:40:38 RtblIdx (24) len 4: 2365
Aug 15 22:40:38 MultiHop (64) len 1: (hex) 01
Aug 15 22:40:38 Authenticated (121) len 1: (hex) 00
Aug 15 22:40:38 BFD m-hops packet from 169.254.255.1 to 169.254.255.3 (IFL 65546), len 24
Aug 15 22:40:38 Ver 1, diag 0, mult 5, len 24
Aug 15 22:40:38 Flags: , State: Down
Aug 15 22:40:38 My discr 0x1a02af59, your discr 0x00000000
Aug 15 22:40:38 Tx ivl 1000000, rx ivl 10000, echo rx ivl 0
Aug 15 22:40:38 Packet from 169.254.255.1 to 169.254.255.3 (ifl 65546, rtbl 2365), discr 0x0, label 0, matches no session
Aug 15 22:40:39 Received Downstream RcvPkt (19) len 99:
Aug 15 22:40:39 IfIndex (3) len 4: 65546
Aug 15 22:40:39 Protocol (1) len 1: BFD
Aug 15 22:40:39 SrcAddr (5) len 8: 169.254.255.1
Aug 15 22:40:39 DestAddr (8) len 8: 169.254.255.3
Aug 15 22:40:39 Data (9) len 24: (hex) 20 40 05 18 1a 02 af 59 00 00 00 00 00 0f 42 40 00 00 27
Aug 15 22:40:39 PktError (26) len 4: 0
Aug 15 22:40:39 RtblIdx (24) len 4: 2365
Aug 15 22:40:39 MultiHop (64) len 1: (hex) 01
Aug 15 22:40:39 Authenticated (121) len 1: (hex) 00
Aug 15 22:40:39 BFD m-hops packet from 169.254.255.1 to 169.254.255.3 (IFL 65546), len 24
Aug 15 22:40:39 Ver 1, diag 0, mult 5, len 24
Aug 15 22:40:39 Flags: , State: Down
Aug 15 22:40:39 My discr 0x1a02af59, your discr 0x00000000
Aug 15 22:40:39 Tx ivl 1000000, rx ivl 10000, echo rx ivl 0
Aug 15 22:40:39 Packet from 169.254.255.1 to 169.254.255.3 (ifl 65546, rtbl 2365), discr 0x0, label 0, matches no session
Aug 15 22:40:39 Received Downstream RcvPkt (19) len 99:
Aug 15 22:40:39 IfIndex (3) len 4: 65546
Aug 15 22:40:39 Protocol (1) len 1: BFD
Aug 15 22:40:39 SrcAddr (5) len 8: 169.254.255.1
Aug 15 22:40:39 DestAddr (8) len 8: 169.254.255.3
Aug 15 22:40:39 Data (9) len 24: (hex) 20 40 05 18 1a 02 af 59 00 00 00 00 00 0f 42 40 00 00 27
Aug 15 22:40:39 PktError (26) len 4: 0
Aug 15 22:40:39 RtblIdx (24) len 4: 2365
Aug 15 22:40:39 MultiHop (64) len 1: (hex) 01
Aug 15 22:40:39 Authenticated (121) len 1: (hex) 00
Aug 15 22:40:39 BFD m-hops packet from 169.254.255.1 to 169.254.255.3 (IFL 65546), len 24
Aug 15 22:40:39 Ver 1, diag 0, mult 5, len 24
Aug 15 22:40:39 Flags: , State: Down
Aug 15 22:40:39 My discr 0x1a02af59, your discr 0x00000000
Aug 15 22:40:39 Tx ivl 1000000, rx ivl 10000, echo rx ivl 0
Aug 15 22:40:39 Packet from 169.254.255.1 to 169.254.255.3 (ifl 65546, rtbl 2365), discr 0x0, label 0, matches no session
Aug 15 22:40:40 Received Downstream RcvPkt (19) len 99:
Aug 15 22:40:40 IfIndex (3) len 4: 65546
Aug 15 22:40:40 Protocol (1) len 1: BFD
Aug 15 22:40:40 SrcAddr (5) len 8: 169.254.255.1
Aug 15 22:40:40 DestAddr (8) len 8: 169.254.255.3
Aug 15 22:40:40 Data (9) len 24: (hex) 20 40 05 18 1a 02 af 59 00 00 00 00 00 0f 42 40 00 00 27
Aug 15 22:40:40 PktError (26) len 4: 0
Aug 15 22:40:40 RtblIdx (24) len 4: 2365
Aug 15 22:40:40 MultiHop (64) len 1: (hex) 01
Aug 15 22:40:40 Authenticated (121) len 1: (hex) 00
Aug 15 22:40:40 BFD m-hops packet from 169.254.255.1 to 169.254.255.3 (IFL 65546), len 24
Aug 15 22:40:40 Ver 1, diag 0, mult 5, len 24
Aug 15 22:40:40 Flags: , State: Down
Aug 15 22:40:40 My discr 0x1a02af59, your discr 0x00000000
Aug 15 22:40:40 Tx ivl 1000000, rx ivl 10000, echo rx ivl 0
Aug 15 22:40:40 Packet from 169.254.255.1 to 169.254.255.3 (ifl 65546, rtbl 2365), discr 0x0, label 0, matches no session
Aug 15 22:40:41 Received Downstream RcvPkt (19) len 99:
Aug 15 22:40:41 IfIndex (3) len 4: 65546
Aug 15 22:40:41 Protocol (1) len 1: BFD
Aug 15 22:40:41 SrcAddr (5) len 8: 169.254.255.1
Aug 15 22:40:41 DestAddr (8) len 8: 169.254.255.3
Aug 15 22:40:41 Data (9) len 24: (hex) 20 40 05 18 1a 02 af 59 00 00 00 00 00 0f 42 40 00 00 27
Aug 15 22:40:41 PktError (26) len 4: 0
Aug 15 22:40:41 RtblIdx (24) len 4: 2365
Aug 15 22:40:41 MultiHop (64) len 1: (hex) 01
Aug 15 22:40:41 Authenticated (121) len 1: (hex) 00
Aug 15 22:40:41 BFD m-hops packet from 169.254.255.1 to 169.254.255.3 (IFL 65546), len 24
Aug 15 22:40:41 Ver 1, diag 0, mult 5, len 24
Aug 15 22:40:41 Flags: , State: Down
Aug 15 22:40:41 My discr 0x1a02af59, your discr 0x00000000
Aug 15 22:40:41 Tx ivl 1000000, rx ivl 10000, echo rx ivl 0
Aug 15 22:40:41 Packet from 169.254.255.1 to 169.254.255.3 (ifl 65546, rtbl 2365), discr 0x0, label 0, matches no session
Aug 15 22:40:42 Received Upstream SetSession (2) len 154:
Aug 15 22:40:42 Version (0) len 1: 255
Aug 15 22:40:42 ClientName (2) len 4: BGP
Aug 15 22:40:42 IfName (4) len 11: xe-2/0/0.2
Aug 15 22:40:42 IfIndex (3) len 4: 65546
Aug 15 22:40:42 DestAddr (6) len 8: 169.254.255.1
Aug 15 22:40:42 Handle (13) len 4: 0x800b10
Aug 15 22:40:42 TxInterval (7) len 4: 100000
Aug 15 22:40:42 RxInterval (8) len 4: 10000
Aug 15 22:40:42 HighTransmitInterval (10) len 4: 0
Aug 15 22:40:42 Multiplier (9) len 4: 5
Aug 15 22:40:42 HoldownInterval (24) len 4: 0
Aug 15 22:40:42 CntrlFlags (15) len 4: 0x0
Aug 15 22:40:42 RouteTblIdx (20) len 4: 2365
Aug 15 22:40:42 AdaptationType (22) len 1: 0
Aug 15 22:40:42 HighDetectionTime (23) len 4: 0
Aug 15 22:40:42 RefreshDeadtime (25) len 4: 0
Aug 15 22:40:42 Unknown (30) len 1: (hex) 00
Aug 15 22:40:42 Session id (31) len 4: 2131230720
Aug 15 22:40:42 Replicate: added session (discr 2057)
Aug 15 22:40:42 Session 169.254.255.1 (IFL 65546) state Down -> AdminDown
Aug 15 22:40:42 Session 169.254.255.1 (IFL 65546) starting version negotiation
Aug 15 22:40:42 Encoded session add for session
Aug 15 22:40:42 Replication packet sent (add):
Aug 15 22:40:42 FormatVersion 1.1
Aug 15 22:40:42 LocalDiscr 2057
Aug 15 22:40:42 SessionCreate
Aug 15 22:40:42 InterfaceName xe-2/0/0.2
Aug 15 22:40:42 InterfaceIndex 139659364
Aug 15 22:40:42 LogicalRouterId 0
Aug 15 22:40:42 RoutingTableIndex 2365
Aug 15 22:40:42 PW demux label 0
Aug 15 22:40:42 NeighborAddr 169.254.255.1
Aug 15 22:40:42 EchoMinTxInterval 0
Aug 15 22:40:42 CurrentTxInterval 1000000
Aug 15 22:40:42 AdaptAsyncTxInterval 100000
Aug 15 22:40:42 LastAdaptRxInterval 10000
Aug 15 22:40:42 LocalDiag None
Aug 15 22:40:42 Session id 2175
Aug 15 22:40:42 MultihopMinRxTTL 255
Aug 15 22:40:42 ISSUState Idle
Aug 15 22:40:42 RemoteHeard False
Aug 15 22:40:42 DemandMode False
Aug 15 22:40:42 EchoModeActive False
Aug 15 22:40:42 Multihop False
Aug 15 22:40:42 RouteLookup False
Aug 15 22:40:42 Uptime Thu Jan 1 00:00:00 1970
Aug 15 22:40:42 Downtime Thu Jan 1 00:00:00 1970
Aug 15 22:40:42 RefreshDeadtime 0
Aug 15 22:40:42 LastProgramPkt (hex) 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Aug 15 22:40:42 BFD packet to 169.254.255.1 (IFL 65546), len 24
Aug 15 22:40:42 Ver 1, diag 0, mult 5, len 24
Aug 15 22:40:42 Flags: , State: AdminDown
Aug 15 22:40:42 My discr 0x00000809, your discr 0x00000000
Aug 15 22:40:42 Tx ivl 1000000, rx ivl 10000, echo rx ivl 0
Aug 15 22:40:42 Sent Downstream ProgramXmit (9) len 141:
Aug 15 22:40:42 IfIndex (3) len 4: 65546
Aug 15 22:40:42 SrcAddr (5) len 8: 169.254.255.3
Aug 15 22:40:42 DestAddr (8) len 8: 169.254.255.1
Aug 15 22:40:42 Data (9) len 24: (hex) 20 00 05 18 00 00 08 09 00 00 00 00 00 0f 42 40 00 00 27
Aug 15 22:40:42 Interval (12) len 8: 1 sec 0 nsec
Aug 15 22:40:42 Jitter (13) len 1: 25
Aug 15 22:40:42 Handle (20) len 4: 0x9080000
Aug 15 22:40:42 Distribute (27) len 1: True
Aug 15 22:40:42 SeqNum (119) len 4: (hex) 2c 2f 25 58
Aug 15 22:40:42 SeqNumTimeStamp (120) len 8: (hex) 55 cf bf ea 08 f0 ba 10
Aug 15 22:40:42 LooseAuth (122) len 1: (hex) 00
Aug 15 22:40:42 DontRoute (23) len 1: True
Aug 15 22:40:42 SendToMhopPort (100) len 1: 0
Aug 15 22:40:42 RtblIdx (24) len 4: 2365
Aug 15 22:40:42 Sent Downstream SetAdj (11) len 109:
Aug 15 22:40:42 IfIndex (3) len 4: 65546
Aug 15 22:40:42 SrcAddr (5) len 8: 169.254.255.1
Aug 15 22:40:42 HoldTime (14) len 8: 0 sec 0 nsec
Aug 15 22:40:42 NoAbsorb (15) len 1: True
Aug 15 22:40:42 NoRefresh (16) len 1: True
Aug 15 22:40:42 ForceRefresh (17) len 1: True
Aug 15 22:40:42 DoNotAge (18) len 1: True
Aug 15 22:40:42 Distribute (27) len 1: True
Aug 15 22:40:42 LooseAuth (122) len 1: (hex) 00
Aug 15 22:40:42 Discriminator (63) len 4: 0x809
Aug 15 22:40:42 RtblIdx (24) len 4: 2365
Aug 15 22:40:42 MinRecvTTL (68) len 1: 255
Aug 15 22:40:42 RecvOnMhopPort (101) len 1: 0
Aug 15 22:40:42 Unknown (153) len 1: (hex) 00
Aug 15 22:40:42 Unknown (154) len 4: (hex) 00 00 08 7f
Aug 15 22:40:42 Received Downstream TraceMsg (24) len 97:
Aug 15 22:40:42 IfIndex (3) len 4: 0
Aug 15 22:40:42 Protocol (1) len 1: BFD
Aug 15 22:40:42 Data (9) len 72: (hex) 42 46 44 20 70 72 6f 67 72 61 6d 6d 65 64 20 70 65 72 69
Aug 15 22:40:42 PPM Trace: BFD programmed periodic xmit to 169.254.255.1 (IFL 65546), interval 1 0
Aug 15 22:40:42 Received Downstream TraceMsg (24) len 85:
Aug 15 22:40:42 IfIndex (3) len 4: 0
Aug 15 22:40:42 Protocol (1) len 1: BFD
Aug 15 22:40:42 Data (9) len 60: (hex) 42 46 44 20 6e 65 69 67 68 62 6f 72 20 31 36 39 2e 32 35
Aug 15 22:40:42 PPM Trace: BFD neighbor 169.254.255.1 (IFL 65546): bfd_ppm_discr 2057
Aug 15 22:40:42 Received Downstream TraceMsg (24) len 73:
Aug 15 22:40:42 IfIndex (3) len 4: 0
Aug 15 22:40:42 Protocol (1) len 1: BFD
Aug 15 22:40:42 Data (9) len 48: (hex) 42 46 44 20 6e 65 69 67 68 62 6f 72 20 31 36 39 2e 32 35
Aug 15 22:40:42 PPM Trace: BFD neighbor 169.254.255.1 (IFL 65546) set, 0 0
Aug 15 22:40:42 Received Downstream TraceMsg (24) len 97:
Aug 15 22:40:42 IfIndex (3) len 4: 0
Aug 15 22:40:42 Protocol (1) len 1: BFD
Aug 15 22:40:42 Data (9) len 72: (hex) 42 46 44 20 70 72 6f 67 72 61 6d 6d 65 64 20 70 65 72 69
Aug 15 22:40:42 PPM Trace: BFD programmed periodic xmit to 169.254.255.1 (IFL 65546), interval 1 0
Aug 15 22:40:42 Received Downstream TraceMsg (24) len 85:
Aug 15 22:40:42 IfIndex (3) len 4: 0
Aug 15 22:40:42 Protocol (1) len 1: BFD
Aug 15 22:40:42 Data (9) len 60: (hex) 42 46 44 20 6e 65 69 67 68 62 6f 72 20 31 36 39 2e 32 35
Aug 15 22:40:42 PPM Trace: BFD neighbor 169.254.255.1 (IFL 65546): bfd_ppm_discr 2057
Aug 15 22:40:42 Received Downstream TraceMsg (24) len 73:
Aug 15 22:40:42 IfIndex (3) len 4: 0
Aug 15 22:40:42 Protocol (1) len 1: BFD
Aug 15 22:40:42 Data (9) len 48: (hex) 42 46 44 20 6e 65 69 67 68 62 6f 72 20 31 36 39 2e 32 35
Aug 15 22:40:42 PPM Trace: BFD neighbor 169.254.255.1 (IFL 65546) set, 0 0
Aug 15 22:40:42 Session 169.254.255.1 (IFL 65546) state AdminDown -> Down
Aug 15 22:40:42 Replicate: marked session (discr 2057) for update
Aug 15 22:40:42 BFD packet to 169.254.255.1 (IFL 65546), len 24
Aug 15 22:40:42 Ver 1, diag 0, mult 5, len 24
Aug 15 22:40:42 Flags: , State: Down
Aug 15 22:40:42 My discr 0x00000809, your discr 0x00000000
Aug 15 22:40:42 Tx ivl 1000000, rx ivl 10000, echo rx ivl 0
Aug 15 22:40:42 Sent Downstream ProgramXmit (9) len 141:
Aug 15 22:40:42 IfIndex (3) len 4: 65546
Aug 15 22:40:42 SrcAddr (5) len 8: 169.254.255.3
Aug 15 22:40:42 DestAddr (8) len 8: 169.254.255.1
Aug 15 22:40:42 Data (9) len 24: (hex) 20 40 05 18 00 00 08 09 00 00 00 00 00 0f 42 40 00 00 27
Aug 15 22:40:42 Interval (12) len 8: 1 sec 0 nsec
Aug 15 22:40:42 Jitter (13) len 1: 25
Aug 15 22:40:42 Handle (20) len 4: 0x9080000
Aug 15 22:40:42 Distribute (27) len 1: True
Aug 15 22:40:42 SeqNum (119) len 4: (hex) 2c 2f 25 58
Aug 15 22:40:42 SeqNumTimeStamp (120) len 8: (hex) 55 cf bf ea 08 f0 ba 10
Aug 15 22:40:42 LooseAuth (122) len 1: (hex) 00
Aug 15 22:40:42 DontRoute (23) len 1: True
Aug 15 22:40:42 SendToMhopPort (100) len 1: 0
Aug 15 22:40:42 RtblIdx (24) len 4: 2365
Aug 15 22:40:42 Sent Downstream SetAdj (11) len 109:
Aug 15 22:40:42 IfIndex (3) len 4: 65546
Aug 15 22:40:42 SrcAddr (5) len 8: 169.254.255.1
Aug 15 22:40:42 HoldTime (14) len 8: 0 sec 0 nsec
Aug 15 22:40:42 NoAbsorb (15) len 1: True
Aug 15 22:40:42 NoRefresh (16) len 1: True
Aug 15 22:40:42 ForceRefresh (17) len 1: True
Aug 15 22:40:42 DoNotAge (18) len 1: True
Aug 15 22:40:42 Distribute (27) len 1: True
Aug 15 22:40:42 LooseAuth (122) len 1: (hex) 00
Aug 15 22:40:42 Discriminator (63) len 4: 0x809
Aug 15 22:40:42 RtblIdx (24) len 4: 2365
Aug 15 22:40:42 MinRecvTTL (68) len 1: 255
Aug 15 22:40:42 RecvOnMhopPort (101) len 1: 0
Aug 15 22:40:42 Unknown (153) len 1: (hex) 00
Aug 15 22:40:42 Unknown (154) len 4: (hex) 00 00 08 7f
Aug 15 22:40:42 Encoded session update for session
Aug 15 22:40:42 Replication packet sent (mod):
Aug 15 22:40:42 FormatVersion 1.1
Aug 15 22:40:42 LocalDiscr 2057
Aug 15 22:40:42 SessionUpdate
Aug 15 22:40:42 CurrentTxInterval 1000000
Aug 15 22:40:42 AdaptAsyncTxInterval 100000
Aug 15 22:40:42 LastAdaptRxInterval 10000
Aug 15 22:40:42 LocalDiag None
Aug 15 22:40:42 Session id 2175
Aug 15 22:40:42 MultihopMinRxTTL 255
Aug 15 22:40:42 ISSUState Idle
Aug 15 22:40:42 RemoteHeard False
Aug 15 22:40:42 DemandMode False
Aug 15 22:40:42 EchoModeActive False
Aug 15 22:40:42 Multihop False
Aug 15 22:40:42 RouteLookup False
Aug 15 22:40:42 Uptime Thu Jan 1 00:00:00 1970
Aug 15 22:40:42 Downtime Thu Jan 1 00:00:00 1970
Aug 15 22:40:42 RefreshDeadtime 0
Aug 15 22:40:42 LastProgramPkt (hex) 20 40 05 18 00 00 08 09 00 00 00 00 00 0f 42 40 00 00 27 10
Aug 15 22:40:42 Received Downstream TraceMsg (24) len 97:
Aug 15 22:40:42 IfIndex (3) len 4: 0
Aug 15 22:40:42 Protocol (1) len 1: BFD
Aug 15 22:40:42 Data (9) len 72: (hex) 42 46 44 20 70 72 6f 67 72 61 6d 6d 65 64 20 70 65 72 69
Aug 15 22:40:42 PPM Trace: BFD programmed periodic xmit to 169.254.255.1 (IFL 65546), interval 1 0
Aug 15 22:40:42 Received Downstream TraceMsg (24) len 85:
Aug 15 22:40:42 IfIndex (3) len 4: 0
Aug 15 22:40:42 Protocol (1) len 1: BFD
Aug 15 22:40:42 Data (9) len 60: (hex) 42 46 44 20 6e 65 69 67 68 62 6f 72 20 31 36 39 2e 32 35
Aug 15 22:40:42 PPM Trace: BFD neighbor 169.254.255.1 (IFL 65546): bfd_ppm_discr 2057
Aug 15 22:40:42 Received Downstream TraceMsg (24) len 73:
Aug 15 22:40:42 IfIndex (3) len 4: 0
Aug 15 22:40:42 Protocol (1) len 1: BFD
Aug 15 22:40:42 Data (9) len 48: (hex) 42 46 44 20 6e 65 69 67 68 62 6f 72 20 31 36 39 2e 32 35
Aug 15 22:40:42 PPM Trace: BFD neighbor 169.254.255.1 (IFL 65546) set, 0 0
Aug 15 22:40:42 Received Downstream TraceMsg (24) len 97:
Aug 15 22:40:42 IfIndex (3) len 4: 0
Aug 15 22:40:42 Protocol (1) len 1: BFD
Aug 15 22:40:42 Data (9) len 72: (hex) 42 46 44 20 70 72 6f 67 72 61 6d 6d 65 64 20 70 65 72 69
Aug 15 22:40:42 PPM Trace: BFD programmed periodic xmit to 169.254.255.1 (IFL 65546), interval 1 0
Aug 15 22:40:42 Received Downstream TraceMsg (24) len 85:
Aug 15 22:40:42 IfIndex (3) len 4: 0
Aug 15 22:40:42 Protocol (1) len 1: BFD
Aug 15 22:40:42 Data (9) len 60: (hex) 42 46 44 20 6e 65 69 67 68 62 6f 72 20 31 36 39 2e 32 35
Aug 15 22:40:42 PPM Trace: BFD neighbor 169.254.255.1 (IFL 65546): bfd_ppm_discr 2057
Aug 15 22:40:42 Received Downstream TraceMsg (24) len 73:
Aug 15 22:40:42 IfIndex (3) len 4: 0
Aug 15 22:40:42 Protocol (1) len 1: BFD
Aug 15 22:40:42 Data (9) len 48: (hex) 42 46 44 20 6e 65 69 67 68 62 6f 72 20 31 36 39 2e 32 35
Aug 15 22:40:42 PPM Trace: BFD neighbor 169.254.255.1 (IFL 65546) set, 0 0
Aug 15 22:40:57 Sent Upstream Keepalive (0) len 20:
Aug 15 22:40:57 Holdtime (11) len 8: 120 sec 0 nsec
Aug 15 22:41:00 Received Upstream Keepalive (0) len 20:
Aug 15 22:41:00 Holdtime (11) len 8: 120 sec 0 nsec
Aug 15 22:41:01 Sent Upstream Keepalive (0) len 20:
Aug 15 22:41:01 Holdtime (11) len 8: 120 sec 0 nsec
From: bird-users-bounces at network.cz<mailto:bird-users-bounces at network.cz> [mailto:bird-users-bounces at network.cz] On Behalf Of Leighton, Russell
Sent: Sunday, August 16, 2015 8:36 AM
To: dnikolaev at mega-net.ru<mailto:dnikolaev at mega-net.ru>
Cc: bird-users at network.cz<mailto:bird-users at network.cz>
Subject: RE: BFD and Juniper?
Thx, replies below.
I sent another email with Juniper traces and Wireshark screenshots but it is big and waiting on moderator approval.
It is interesting that the MX thinks Bird is in AdminDown but bird thinks it is in Init
MX “show bfd sessions extensive”:
Address State Interface Time Interval Multiplier
169.254.255.1 Down xe-2/0/0.2 0.000 1.000 5
Client BGP, TX interval 0.100, RX interval 0.010
Local diagnostic None, remote diagnostic None
Remote state AdminDown, version 1
Replicated
Min async interval 0.100, min slow interval 1.000
Adaptive async TX interval 0.100, RX interval 0.010
Local min TX interval 1.000, minimum RX interval 0.010, multiplier 5
Remote min TX interval 0.000, min RX interval 0.000, multiplier 0
Local discriminator 2058, remote discriminator 0
Echo mode disabled/inactive, no-absorb, no-refresh
Session ID: 0x87f
1 sessions, 1 clients
Cumulative transmit rate 1.0 pps, cumulative receive rate 0.0 pps
Bird “show bfd sessions”:
bird> show bfd sessions
bfd1:
IP address Interface State Since Interval Timeout
169.254.255.3 --- Init 18:47:50 1.000 5.000
169.254.255.2 --- Init 18:47:49 1.000 3.000
169.254.255.4 --- Init 18:47:46 1.000 3.000
The bird debug logs were not informative.
I will check the firewall … good point. The MX is getting some bfd based on the traces but maybe the firewall is disrupting things.
From: Dmitry S. Nikolaev [mailto:dnikolaev at mega-net.ru]
Sent: Sunday, August 16, 2015 1:25 AM
To: Leighton, Russell
Cc: bird-users at network.cz<mailto:bird-users at network.cz>
Subject: Re: BFD and Juniper?
Hi.
1. What output on MX for:
# show bfd session extensive
2. What output on BIRD for:
> show bfd sessions
3. Try to enable debug for BFD on bird and see what happens in log file.
4. Use tcpdump on BIRD side to see all BFD packets are send or recieved.
5. Do you have firewall on MX ?
Check firewall, it must not block ports: UDP 3784, 4784
for your neighbor`s IP.
---
With best regards, Dmitry S. Nikolaev
Moscow, Russia
phone: +7 (499) 678 8007 [ext. 6003]
fax: +7 (499) 678 8007 [ext. 7777]
www: http://www.mega-net.ru<http://www.mega-net.ru/>
mail: dnikolaev at mega-net.ru<mailto:dnikolaev at mega-net.ru>
On 15.08.2015 22:57, Leighton, Russell wrote:
12.3
I’ll try Job Snijders suggestions soon.
From: Dmitry S. Nikolaev [mailto:dnikolaev at mega-net.ru]
Sent: Saturday, August 15, 2015 11:14 AM
To: Leighton, Russell
Cc: bird-users at network.cz<mailto:bird-users at network.cz>
Subject: Re: BFD and Juniper?
Hi.
What Junos version on you router ?
There is a bug in Junos 10.4 (and maybe early versions) with SRC address for BFD session if router have several IP`s on one iface.
---
With best regards, Dmitry S. Nikolaev
Moscow, Russia
phone: +7 (499) 678 8007 [ext. 6003]
fax: +7 (499) 678 8007 [ext. 7777]
www: http://www.mega-net.ru<http://www.mega-net.ru/>
mail: dnikolaev at mega-net.ru<mailto:dnikolaev at mega-net.ru>
On 15.08.2015 17:42, Leighton, Russell wrote:
I’m trying to get bird 1.5.0 to have BFD work with Juniper MX Routers.
Sessions get stuck in Init state with the Juniper side in Down state.
Any suggestions?
I’m happy to share Juniper traces if that would lend some insight.
Thx in advance.
-Russ
Russell Leighton
Senior Software Development Engineer
Amazon Web Services / EC2 Networking
leightr at amazon.com<mailto:leightr at amazon.com>
Mobile: 301.828.8458
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