Alcatel Carrier Internetworking Solutions 6800 User Manual

BGP Troubleshooting

Troubleshooting IP Routing

page 12-28

OmniSwitch Troubleshooting Guide

-> show ip bgp neighbors statistics  152.23.1.9
Neighbor address                   = 152.23.1.9,
# of UP transitions                = 4,
Time of last UP transition         = 21d:11h:42m,
# of DOWN transitions              = 6,
Time of last DOWN transition       = 21d:11h:43m,
Last DOWN reason                   = hold_timeout,
# of msgs rcvd                     = 102904,
# of Update msgs rcvd              = 4,
# of prefixes rcvd                 = 1,
# of Route Refresh msgs rcvd       = 0,
# of Notification msgs rcvd        = 1,
Last rcvd Notification reason      = update message error [malformed aspath]
Time last msg was rcvd             = 00h:00m:06s,
# of msgs sent                     = 187265,
# of Update msgs sent              = 85668,
# of Route Refresh msgs sent       = 0
# of Notification msgs sent        = 1,
Last sent Notification reason      = hold time out [none]
Time last msg was sent             = 00h:00m:00s,

7700-> ip bgp debug-type ?

^
WARNINGS TM TCP SYNC SENDUPD ROUTE REDIST
RECVUPD POLICY PEER OPEN NOTIFY MIP LOCAL
KEEPALIVE INFO FSM ERRORS DAMP ALL AGGR

(IP Routing & Multicast Command Set)

To debug BGP:

1) ip bgp debug-level 51
2) ip bgp debug-type peer
3) ip bgp debug-type open
4) ip bgp debug-level 0