Error log %PIM-5-NBRCHG: neighbor 0.0.0.0

[Muzaffar Iyad Boukai]

Dear

I have 2 core 4500 with the below config :

Core 1

interface Vlan202
 description VLAN FOR VOICE 
 ip address x.x.x.2 255.255.248.0
 no ip redirects
 ip pim dense-mode
 standby 202 ip x.x.x.1
 standby 202 priority 90
 standby 202 preempt
end

core 2

interface Vlan202
 description VLAN FOR VOICE 
 ip address x.x.x.3 255.255.248.0
 no ip redirects
 ip pim dense-mode
 standby 202 ip x.x.x.1

I have the bellow error on Bothe core switches :

Jan  6 06:27:35.516: %PIM-5-NBRCHG: neighbor 0.0.0.0 UP on interface Vlan202
Jan  6 06:27:35.520: %PIM-5-NBRCHG: neighbor 0.0.0.0 DOWN on interface Vlan202 non DR
Jan  6 06:28:00.003: %PIM-5-NBRCHG: neighbor 0.0.0.0 UP on interface Vlan202
Jan  6 06:28:00.007: %PIM-5-NBRCHG: neighbor 0.0.0.0 DOWN on interface Vlan202 non DR
Jan  6 06:28:05.535: %PIM-5-NBRCHG: neighbor 0.0.0.0 UP on interface Vlan202
Jan  6 06:28:05.539: %PIM-5-NBRCHG: neighbor 0.0.0.0 DOWN on interface Vlan202 non DR
Jan  6 06:28:30.014: %PIM-5-NBRCHG: neighbor 0.0.0.0 UP on interface Vlan202
Jan  6 06:28:30.018: %PIM-5-NBRCHG: neighbor 0.0.0.0 DOWN on interface Vlan202 non DR
Jan  6 06:28:35.555: %PIM-5-NBRCHG: neighbor 0.0.0.0 UP on interface Vlan202
Jan  6 06:28:35.559: %PIM-5-NBRCHG: neighbor 0.0.0.0 DOWN on interface Vlan202 non DR
Jan  6 06:29:00.026: %PIM-5-NBRCHG: neighbor 0.0.0.0 UP on interface Vlan202
Jan  6 06:29:00.030: %PIM-5-NBRCHG: neighbor 0.0.0.0 DOWN on interface Vlan202 non DR
Jan  6 06:29:05.567: %PIM-5-NBRCHG: neighbor 0.0.0.0 UP on interface Vlan202
Jan  6 06:29:05.571: %PIM-5-NBRCHG: neighbor 0.0.0.0 DOWN on interface Vlan202 non DR

Core1#sho ip pim neighbor
PIM Neighbor Table
Mode: B - Bidir Capable, DR - Designated Router, N - Default DR Priority,
      P - Proxy Capable, S - State Refresh Capable
Neighbor          Interface                Uptime/Expires    Ver   DR
Address                                                            Prio/Mode
x.x.x.3         Vlan202                  6w1d/00:01:43     v2    1 / DR S P
Core1#

Core2#sho ip pim neighbor
PIM Neighbor Table
Mode: B - Bidir Capable, DR - Designated Router, N - Default DR Priority,
      P - Proxy Capable, S - State Refresh Capable
Neighbor          Interface                Uptime/Expires    Ver   DR
Address                                                            Prio/Mode
x.x.x.2         Vlan202                  19w4d/00:01:43    v2    1 / S P
Core2#

any help on this ?

[Evgeniy Prichinin · Accepted solution]

You need HSRP Aware PIM for prevent dublicate multicast traffic flow and redundancy.

[paul driver]

Hello

I think I read some where pim-dense doesn't recognise pim designated routers unless igmpv1 is being used and by default pim-dense uses igmpv2

However have you tried manually specifying the DR election?

int xxx
ip pim dr-priority xx ( higher value takes precedence)

res

Paul

[Muzaffar Iyad Boukai]

Paul Driver - thank you for your help , but it didn't work

Evgeniy Prichinin - thank you it seems this is the solution , I have to upgrade my core to 15.1 then try

for time being I configured the other interface as IP PIM passive

[Alex Pfeil]

Did this fix your issue?

I was also looking at:

access-list 1 deny 0.0.0.0

access-list 1 permit any

interface X

ip pim neighbor-filter 1

Does anybody have a comment on this?

Thanks,

Alex

[amorimreis]

Do you have any Nexus and OTV in your network?

I had the same msgs.