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Webcast-Catalyst9k
New Member

%PIM-5-NBRCHG & %PIM-5-DRCHG: DR change from neighbor in Core routers

Hi All,

This is regarding the syslog messgae which we are reciveing in our core routers.

Evere 2 or 3 days, we are receviing this below message in our core routers, it looks like we are loosing the pim neigbour ship.

But the users are not complaing, the interfface which is connectd to this core intreface are multicast source router.

When we check the interface, I dont see any drops. This issue is recently started. The other end routers are 6513.

Our core routers are 7609 with RSP. We are using SSM for multicast. ISIS is the IGP protocol.

below is the logs. We are getting  this message only from this interface, not from other connected routers.

Any help would be

pdc-c1#sh logging 
001517: Aug 23 07:19:24.376 GMT: %PIM-5-NBRCHG: neighbor 172.16.11.14 DOWN on interface TenGigabitEthernet1/4 DR
001518: Aug 23 07:19:24.376 GMT: %PIM-5-DRCHG: DR change from neighbor 172.16.11.14 to 172.16.11.13 on interface TenGigabitEthernet1/4
001519: Aug 23 07:19:24.396 GMT: %PIM-5-NBRCHG: neighbor 172.16.11.14 UP on interface TenGigabitEthernet1/4
001520: Aug 23 07:19:24.400 GMT: %PIM-5-DRCHG: DR change from neighbor 172.16.11.13 to 172.16.11.14 on interface TenGigabitEthernet1/4
pdc-c1#

interface TenGigabitEthernet1/4

description Link to bdc-dc2 ten9/3

dampening

mtu 4470

ip address 172.16.11.13 255.255.255.252

no ip redirects

ip router isis

ip pim query-interval 500 msec

ip pim sparse-mode

carrier-delay msec 0

wrr-queue bandwidth 25 30 45 0 0 0 0

wrr-queue queue-limit 20 25 35 0 0 0 0

wrr-queue random-detect min-threshold 1 80 90 100 100 100 100 100 100

wrr-queue random-detect min-threshold 2 70 80 90 100 100 100 100 100

wrr-queue random-detect min-threshold 3 100 100 100 100 100 100 100 100

wrr-queue random-detect max-threshold 1 90 100 100 100 100 100 100 100

wrr-queue random-detect max-threshold 2 80 90 100 100 100 100 100 100

wrr-queue cos-map 2 2 3

wrr-queue cos-map 2 3 6 7

wrr-queue cos-map 3 1 4

mls qos trust dscp

mpls ip

bfd interval 100 min_rx 100 multiplier 3

isis circuit-type level-2-only

isis network point-to-point

isis metric 1 level-2

isis authentication mode md5

isis authentication key-chain tpq

isis bfd

end

bdc-c2#sh logging

002203: Aug 22 19:48:13.167 GMT: %PIM-5-NBRCHG: neighbor 172.16.12.10 DOWN on interface TenGigabitEthernet1/3 DR

002204: Aug 22 19:48:13.167 GMT: %PIM-5-DRCHG: DR change from neighbor 172.16.12.10 to 172.16.12.9 on interface TenGigabitEthernet1/3

002205: Aug 22 19:48:13.231 GMT: %PIM-5-NBRCHG: neighbor 172.16.12.10 UP on interface TenGigabitEthernet1/3

002206: Aug 22 19:48:13.231 GMT: %PIM-5-DRCHG: DR change from neighbor 172.16.12.9 to 172.16.12.10 on interface TenGigabitEthernet1/

002203: Aug 22 19:48:13.167 GMT: %PIM-5-NBRCHG: neighbor 172.16.12.10 DOWN on interface TenGigabitEthernet1/3 DR
002204: Aug 22 19:48:13.167 GMT: %PIM-5-DRCHG: DR change from neighbor 172.16.12.10 to 172.16.12.9 on interface TenGigabitEthernet1/3
002205: Aug 22 19:48:13.231 GMT: %PIM-5-NBRCHG: neighbor 172.16.12.10 UP on interface TenGigabitEthernet1/3
002206: Aug 22 19:48:13.231 GMT: %PIM-5-DRCHG: DR change from neighbor 172.16.12.9 to 172.16.12.10 on interface TenGigabitEthernet1/3

interface TenGigabitEthernet1/3
description to pdc-dc1 ten 9/4
dampening
mtu 4470
ip address 172.16.12.9 255.255.255.252
no ip redirects
ip router isis
ip pim query-interval 500 msec
ip pim sparse-mode
carrier-delay msec 0
wrr-queue bandwidth 25 30 45 0 0 0 0
wrr-queue queue-limit 20 25 35 0 0 0 0
wrr-queue random-detect min-threshold 1 80 90 100 100 100 100 100 100
wrr-queue random-detect min-threshold 2 70 80 90 100 100 100 100 100
wrr-queue random-detect min-threshold 3 100 100 100 100 100 100 100 100
wrr-queue random-detect max-threshold 1 90 100 100 100 100 100 100 100
wrr-queue random-detect max-threshold 2 80 90 100 100 100 100 100 100
wrr-queue cos-map 2 2 3
wrr-queue cos-map 2 3 6 7
wrr-queue cos-map 3 1 4
mls qos trust dscp
mpls ip
bfd interval 100 min_rx 100 multiplier 3
isis circuit-type level-2-only
isis network point-to-point
isis metric 1 level-2
isis authentication mode md5
isis authentication key-chain tpq
isis bfd

1 REPLY
New Member

%PIM-5-NBRCHG & %PIM-5-DRCHG: DR change from neighbor in Core r

Hi Team,

Any response would be gratefull..

Regards

-Saji

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