DEBUG OUTPUT FROM ISP2  

Friday, November 14, 2008


this is the debug out put from isp2

CODE
as#3
[Resuming connection 3 to r3 ... ]
isp2(config)#
isp2(config)#

isp2(config)#do debug ip bgp events
BGP events debugging is on
isp2(config)#router bgp 300
isp2(config-router)#neig
*Mar 1 02:15:49.667: BGP: reset all neighbors due to BGP protocol initialization
isp2(config-router)#neig 172.
*Mar 1 02:15:50.691: BGP(IPv4 Unicast): computed bestpaths, table version went from 1 to 1
*Mar 1 02:15:50.691: BGP(VPNv4 Unicast): computed bestpaths, table version went from 1 to 1
*Mar 1 02:15:50.691: BGP(IPv4 Multicast): computed bestpaths, table version went from 1 to 1
*Mar 1 02:15:50.691: BGP: notified IGPs about convergence
*Mar 1 02:15:50.691: BGPNSF: Listeners notified about convergence
isp2(config-router)#neig 172.16.0.2 remote-as 100
isp2(config-router)#net
*Mar 1 02:16:00.691: BGP(IPv4 Unicast): will wait 300s for the first peer to establish
isp2(config-router)#net 172.1
*Mar 1 02:16:04.691: BGP: Regular scanner event timer
*Mar 1 02:16:04.691: BGP: Performing BGP general scanning
*Mar 1 02:16:04.691: BGP(0): scanning IPv4 Unicast routing tables
*Mar 1 02:16:04.699: BGP(2): scanning VPNv4 Unicast routing tables
*Mar 1 02:16:04.699: BGP(VPNv4 Unicast): Performing BGP Nexthop scanning for general scan
*Mar 1 02:16:04.699: BGP: Import walker start version 0, end version 1
*Mar 1 02:16:04.699: BGP: ... start import cfg version = 0
*Mar 1 02:16:04.699: BGP(2): Future scanner version: 2, current scanner version: 1
*Mar 1 02:16:04.699: BGP(4): scanning IPv4 Multicast routing tables
isp2(config-router)#net 172.16.1
*Mar 1 02:16:04.707: BGP(IPv4 Multicast): Performing BGP Nexthop scanning for general scan
*Mar 1 02:16:04.707: BGP(4): Future scanner version: 2, current scanner version: 1
isp2(config-router)#net 172.16.1.0 mask 255.255.255.0
isp2(config-router)#
*Mar 1 02:16:19.727: BGP: Regular scanner event timer
*Mar 1 02:16:19.727: BGP: Import timer expired. Walking from 1 to 1
isp2(config-router)#
*Mar 1 02:16:26.283: BGP(0): 172.16.0.2 was the first peer to be established for IPv4 Unicast
*Mar 1 02:16:26.283: %BGP-5-ADJCHANGE: neighbor 172.16.0.2 Up -------------------------------------------*
isp2(config-router)#
*Mar 1 02:16:26.287: BGP(IPv4 Unicast): First peer has been established, delaying initial updates for up to 120 seconds
*Mar 1 02:16:26.343: BGP(IPv4 Unicast): computed bestpaths, table version went from 1 to 5
*Mar 1 02:16:26.347: BGP: notified IGPs about convergence
*Mar 1 02:16:26.347: BGPNSF: Listeners notified about convergence
isp2(config-router)#
*Mar 1 02:16:34.727: BGP: Regular scanner event timer
*Mar 1 02:16:34.727: BGP: Import timer expired. Walking from 1 to 1
isp2(config-router)#


as soon as issuing router bgp command so many process gets started as we have seen .. this is the start lets examine the bgp routing and neighb tables


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