Index of /Reseau/BFD

[ICO]NameLast modifiedSizeDescription

[PARENTDIR]Parent Directory  -  
[   ]bfd_router12012-12-17 19:12 1.1K 
[   ]bfd_router22012-12-17 19:12 1.1K 

*Aug 15 20:23:37.755: %SYS-2-CHUNKSIBLINGS: Attempted to destroy chunk with siblings, chunk F51B0EA0. -Process= "IP RIB Update", ipl= 0, pid= 112,  -Traceback= 0xA70B0A7z 0xA70B268z 0x870717Dz 0x8705423z 0x971E2D9z 0x971B6DAz

router1(config)#no router bgp 64751
router1(config)#
*Aug 15 20:24:00.267: %SYS-2-CHUNKSIBLINGS: Attempted to destroy chunk with siblings, chunk F6438E40. -Process= "IP RIB Update", ipl= 0, pid= 112,  -Traceback= 0xA70B0A7z 0xA70B268z 0x870717Dz 0x8705423z 0x971E2D9z 0x971B6DAz

Router1: 
router1(config)#router bgp 64001
router1(config-router)#nei 10.0.0.2 remote 64002
router1(config-router)#nei 10.0.0.2
*Aug 15 20:30:34.451: %BGP-5-ADJCHANGE: neighbor 10.0.0.2 Up
router1(config-router)#nei 10.0.0.2 soft in
router1(config-router)#do sh ip bgp sum
BGP router identifier 10.0.0.1, local AS number 64001
BGP table version is 1, main routing table version 1

Neighbor        V           AS MsgRcvd MsgSent   TblVer  InQ OutQ Up/Down  State/PfxRcd
10.0.0.2        4        64002       2       3        1    0    0 00:00:10        0


Router2: 
router4(config)#router bgp 64002
router4(config-router)#nei 10.0.0.1 remote 64001
router4(config-router)#nei 10.0.0.1 soft in
router4(config-router)#
*Aug 15 20:30:34.703: %BGP-5-ADJCHANGE: neighbor 10.0.0.1 Up
router4(config-router)#do sh ip bgp sum
BGP router identifier 10.0.0.2, local AS number 64002
BGP table version is 1, main routing table version 1

Neighbor        V           AS MsgRcvd MsgSent   TblVer  InQ OutQ Up/Down  State/PfxRcd
10.0.0.1        4        64001       3       2        1    0    0 00:00:15        0 (SE)


1er essai : timers bgp 

router1(config-router)#int e0/0
router1(config-if)#shu
router1(config-if)#
*Aug 15 20:33:34.083: %BGP_SESSION-5-ADJCHANGE: neighbor 10.0.0.2 IPv4 Unicast topology base removed from session  Interface flap
*Aug 15 20:33:34.083: %BGP-5-ADJCHANGE: neighbor 10.0.0.2 Down Interface flap
router1(config-if)#
*Aug 15 20:33:36.083: %LINK-5-CHANGED: Interface Ethernet0/0, changed state to administratively down
*Aug 15 20:33:37.083: %LINEPROTO-5-UPDOWN: Line protocol on Interface Ethernet0/0, changed state to down

=> shut im├ędiat du neighbor car eBGP. ne le fait pas si iBGP. 

Sur le routeur 2 : 
*Aug 15 20:36:34.019: %BGP-5-ADJCHANGE: neighbor 10.0.0.1 Down BGP Notification sent
*Aug 15 20:36:34.019: %BGP-3-NOTIFICATION: sent to neighbor 10.0.0.1 4/0 (hold time expired) 0 bytes 
*Aug 15 20:36:34.023: %BGP_SESSION-5-ADJCHANGE: neighbor 10.0.0.1 IPv4 Unicast topology base removed from session  BGP Notification sent

=> 3 minutes.

----------------------------
Avec BFD : 
router4(config-router)#int e0/0
router4(config-if)#bfd ?
  echo      Use echo adjunct as bfd detection mechanism
  interval  Transmit interval between BFD packets


router1(config-if)#bfd interval 100 min_rx 100 multiplier 3
router4(config-if)#bfd int 100 min_rx 100 multiplier 3

router1(config)#do sh bfd nei
=> should work, mais rien sur IOU... bizarre

router1(config)#router bgp 64001
router1(config-router)#nei 10.0.0.2 fall-over bfd

router4(config)#router bgp 64002
router4(config-router)#nei 10.0.0.1 fall-over bfd

router1(config-if)#shu
router1(config-if)#
*Aug 15 20:49:41.507: %BGP_SESSION-5-ADJCHANGE: neighbor 10.0.0.2 IPv4 Unicast topology base removed from session  Interface flap
*Aug 15 20:49:41.507: %BGP-5-ADJCHANGE: neighbor 10.0.0.2 Down Interface flap
*Aug 15 20:49:43.499: %LINK-5-CHANGED: Interface Ethernet0/0, changed state to administratively down
*Aug 15 20:49:44.503: %LINEPROTO-5-UPDOWN: Line protocol on Interface Ethernet0/0, changed state to down

sur le routeur2 :
*Aug 15 20:49:42.119: %BGP_SESSION-5-ADJCHANGE: neighbor 10.0.0.1 IPv4 Unicast topology base removed from session  BFD adjacency down
*Aug 15 20:49:42.119: %BGP-5-ADJCHANGE: neighbor 10.0.0.1 Down BFD adjacency down