Hello List,
Back in the 2006 list archives, Claudio Jeker said "Welcome in the
OSPF hell".
I just can't figure out how to solve a "nbr_adj_timer: failed to
form adjacency with .." problem. I thought I cracked it the other
day, but the solution I found the other day (removing overlapping
subnets on interfaces) no longer applies.
HOST A
==========
# cat /etc/ospfd.conf
router-id 172.16.176.169
redistribute connected
router-priority 100
area 0.0.0.0 {
auth-type crypt
auth-md 1 ********
auth-md-keyid 1
hello-interval 3
router-dead-time 15
interface lo1 {passive}
interface vlan10 {passive}
interface bge0
interface bge1
}
# ospfctl sh
Router ID: 172.16.176.169
Uptime: 00:03:36
RFC1583 compatibility flag is disabled
SPF delay is 1000 msec(s), hold time between two SPFs is 5000
msec(s)
Number of external LSA(s) 1
Number of areas attached to this router: 1
Area ID: 0.0.0.0
Number of interfaces in this area: 4
Number of fully adjacent neighbors in this area: 0
SPF algorithm executed 1 time(s)
Number LSA(s) 1
# ospfctl sh int
Interface Address State HelloTimer Linkstate Uptime
nc ac
bge1 172.16.176.179/28 DOWN - no carrier
00:00:00 0 0
bge0 172.16.176.178/28 DR 00:00:00 active
00:03:39 1 1
vlan10 172.16.65.242/23 DOWN - no carrier 00:00:00
0 0
lo1 172.16.176.169/32 LOOP - unknown
2109w6d0 0 0
# ospfctl sh nei
ID Pri State DeadTime Address Iface
Uptime
172.16.176.170 1 EXSTA/OTHER 00:00:12 172.16.176.178 bge0
-
# ospfd -dv
startup
rde_asext_get: 172.16.176.176/28 is net LSA
orig_asext_lsa: 172.16.177.0/27 age 0
if_fsm: event UP resulted in action START and changing state for
interface bge1 from DOWN to DOWN
orig_rtr_lsa: area 0.0.0.0
orig_rtr_lsa: stub net, interface bge0
if_fsm: event UP resulted in action START and changing state for
interface bge0 from DOWN to WAIT
if_fsm: event UP resulted in action START and changing state for
interface vlan10 from DOWN to DOWN
if_fsm: interface lo1, event UP not expected in state LOOP
spf_calc: area 0.0.0.0 calculated
nbr_fsm: event HELLO_RECEIVED resulted in action
START_INACTIVITY_TIMER and changing state for neighbor ID
172.16.176.170 from DOWN to INIT
nbr_fsm: event 2_WAY_RECEIVED resulted in action EVAL and changing
state for neighbor ID 172.16.176.170 from INIT to 2-WAY
if_act_elect: interface bge0 old dr none new dr 172.16.176.178, old
bdr none new bdr 172.16.176.178
nbr_fsm: event ADJ_OK resulted in action EVAL and changing state
for neighbor ID 172.16.176.170 from 2-WAY to EXSTA
orig_rtr_lsa: area 0.0.0.0
orig_rtr_lsa: stub net, interface bge0
orig_rtr_lsa: area 0.0.0.0
orig_rtr_lsa: stub net, interface bge0
if_fsm: event WAITTIMER resulted in action ELECT and changing state
for interface bge0 from WAIT to DR
if_act_elect: interface bge0 old dr 172.16.176.178 new dr
172.16.176.178, old bdr 172.16.176.178 new bdr none
orig_rtr_lsa: area 0.0.0.0
orig_rtr_lsa: stub net, interface bge0
if_fsm: event NEIGHBORCHANGE resulted in action ELECT and changing
state for interface bge0 from DR to DR
if_act_elect: interface bge0 old dr 172.16.176.178 new dr
172.16.176.178, old bdr none new bdr none
if_fsm: event NEIGHBORCHANGE resulted in action ELECT and changing
state for interface bge0 from DR to DR
nbr_adj_timer: failed to form adjacency with 172.16.176.170
nbr_adj_timer: failed to form adjacency with 172.16.176.170
nbr_adj_timer: failed to form adjacency with 172.16.176.170
===========
HOST B
==========
# cat /etc/ospfd.conf
router-id 172.16.176.170
redistribute connected
area 0.0.0.0 {
auth-type crypt
auth-md 1 ********
auth-md-keyid 1
hello-interval 3
router-dead-time 15
interface lo1 {passive}
interface vlan5 {passive}
interface vlan10 {passive}
interface bge0
interface bge1
}
# ospfctl sh
Router ID: 172.16.176.170
Uptime: 00:03:06
RFC1583 compatibility flag is disabled
SPF delay is 1000 msec(s), hold time between two SPFs is 5000
msec(s)
Number of external LSA(s) 1
Number of areas attached to this router: 1
Area ID: 0.0.0.0
Number of interfaces in this area: 5
Number of fully adjacent neighbors in this area: 0
SPF algorithm executed 1 time(s)
Number LSA(s) 1
# ospfctl sh int
Interface Address State HelloTimer Linkstate Uptime
nc ac
bge1 172.16.176.182/28 DOWN - no carrier
00:00:00 0 0
bge0 172.16.176.178/28 OTHER 00:00:02 active
00:03:09 1 1
vlan10 172.16.155.174/29 DOWN - no carrier
00:00:00 0 0
vlan5 172.16.176.210/29 DOWN - no carrier
00:00:00 0 0
lo1 172.16.176.170/32 LOOP - unknown
2109w6d0 0 0
# ospfctl sh nei
ID Pri State DeadTime Address Iface
Uptime
172.16.176.169 100 EXSTA/DR 00:00:12 172.16.176.178 bge0
-
# ospfd -dv
startup
rde_asext_get: 172.16.176.176/28 is net LSA
orig_asext_lsa: 172.16.177.0/27 age 0
if_fsm: event UP resulted in action START and changing state for
interface bge1 from DOWN to DOWN
orig_rtr_lsa: area 0.0.0.0
orig_rtr_lsa: stub net, interface bge0
if_fsm: event UP resulted in action START and changing state for
interface bge0 from DOWN to WAIT
if_fsm: event UP resulted in action START and changing state for
interface vlan10 from DOWN to DOWN
if_fsm: event UP resulted in action START and changing state for
interface vlan5 from DOWN to DOWN
if_fsm: interface lo1, event UP not expected in state LOOP
spf_calc: area 0.0.0.0 calculated
nbr_fsm: event HELLO_RECEIVED resulted in action
START_INACTIVITY_TIMER and changing state for neighbor ID
172.16.176.169 from DOWN to INIT
nbr_fsm: event 2_WAY_RECEIVED resulted in action EVAL and changing
state for neighbor ID 172.16.176.169 from INIT to 2-WAY
if_fsm: event NEIGHBORCHANGE resulted in action NOTHING and
changing state for interface bge0 from WAIT to WAIT
if_act_elect: interface bge0 old dr none new dr 172.16.176.178, old
bdr none new bdr none
nbr_fsm: event ADJ_OK resulted in action EVAL and changing state
for neighbor ID 172.16.176.169 from 2-WAY to EXSTA
orig_rtr_lsa: area 0.0.0.0
orig_rtr_lsa: stub net, interface bge0
orig_rtr_lsa: area 0.0.0.0
orig_rtr_lsa: stub net, interface bge0
if_fsm: event BACKUPSEEN resulted in action ELECT and changing
state for interface bge0 from WAIT to OTHER
if_fsm: interface bge0, event BACKUPSEEN not expected in state OTHER
if_act_elect: interface bge0 old dr 172.16.176.178 new dr
172.16.176.178, old bdr none new bdr 172.16.176.178
orig_rtr_lsa: area 0.0.0.0
orig_rtr_lsa: stub net, interface bge0
orig_rtr_lsa: area 0.0.0.0
orig_rtr_lsa: stub net, interface bge0
if_fsm: event NEIGHBORCHANGE resulted in action ELECT and changing
state for interface bge0 from OTHER to BCKUP
if_act_elect: interface bge0 old dr 172.16.176.178 new dr
172.16.176.178, old bdr 172.16.176.178 new bdr none
orig_rtr_lsa: area 0.0.0.0
orig_rtr_lsa: stub net, interface bge0
orig_rtr_lsa: area 0.0.0.0
orig_rtr_lsa: stub net, interface bge0
if_fsm: event NEIGHBORCHANGE resulted in action ELECT and changing
state for interface bge0 from BCKUP to OTHER
if_fsm: event WAITTIMER resulted in action NOTHING and changing
state for interface bge0 from OTHER to OTHER
nbr_adj_timer: failed to form adjacency with 172.16.176.169
nbr_adj_timer: failed to form adjacency with 172.16.176.169
nbr_adj_timer: failed to form adjacency with 172.16.176.169
