Solved: igmp statistics

arun · ‎11-13-2009

i am getting this error msg from one of my core switch.

2009-11-14 11:49:09 Local7.Info 10.87.250.2 1451: Nov 14 14:19:06.876 PHP: %MCAST-SP-6-ETRACK_STATS_LIMIT_EXCEEDED: Number of entries in IGMP snooping explicit-tracking statistics has exceeded the permanent threshold (25600). can i clear igmp statistics. will it cause any issues?.

arjmenon · ‎11-14-2009

Yes you can track upto 128000 entries..

View solution in original post

arjmenon · ‎11-14-2009

Has this device crashed before ?

If it has, then issuing the command "clear ip igmp snooping stat" may result in the same crash again;

Please refer this bug:

http://tools.cisco.com/Support/BugToolKit/search/getBugDetails.do?method=fetchBugDetails&bugId=CSCsu88008

The workaround is to Disable explicit tracking by setting the explicit tracking database size to 0.

http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SXF/native

/configuration/guide/snooigmp.html#wp1062242

NOTE:urning off explicit host tracking disables fast-leave processing and

proxy reporting.

arun · ‎11-14-2009

Hi,

Thanks for your prombt response.No, This 6506 device has never crashed before. i can increase the databse threshold right?

arjmenon · ‎11-14-2009

Yes you can track upto 128000 entries..

zeuscyril · ‎12-03-2013

hi arjmenon,

in my 6500 series switches i already two vlans with the following configuration down (working for 3 years), after that i tried to configure 2 more vlans like the same , after saving the config the 2 core switches are crashed.i dont know the reason,

in one of my core swith supervisor crashed and one gone to factory default.

after painful 2 nights i got the core switches back. after making up sometimes i am getting this message on my log.

%MCAST-SP-6-ETRACK_STATS_LIMIT_EXCEEDED: Number of entries in IGMP snooping explicit-tracking statistics has exceeded the permanent threshold (25600)

right now the client asking agian to create vlan for multicast i am little bit tense to create. creation will give same issue again or i need to disable the tracking.

interface Vlan15

description * HiTV *

ip address 10.25.1.3 255.255.0.0

ip access-group from_vlan15 in

ip pim sparse-mode

ip policy route-map Neos

ip igmp join-group 239.250.250.121

ip igmp join-group 239.250.250.112

ip igmp join-group 239.250.250.105

ip igmp join-group 239.250.250.104

ip igmp join-group 239.250.250.100

ip igmp join-group 239.250.250.99

ip igmp join-group 239.250.250.98

ip igmp join-group 239.250.250.97

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ip igmp join-group 239.250.250.88

ip igmp join-group 239.250.250.84

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ip igmp join-group 239.250.250.4

ip igmp join-group 239.250.250.3

ip igmp join-group 239.250.250.2

ip igmp join-group 239.250.250.1

ip igmp join-group 239.200.1.100

ip igmp join-group 239.200.1.99

ip igmp join-group 239.200.1.98

ip igmp join-group 239.200.1.97

ip igmp join-group 239.200.1.96

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ip igmp join-group 239.200.1.15

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ip igmp join-group 239.200.1.13

ip igmp join-group 239.200.1.12

ip igmp join-group 239.200.1.11

ip igmp join-group 239.200.1.10

ip igmp join-group 239.200.1.9

ip igmp join-group 239.200.1.8

ip igmp join-group 239.200.1.7

ip igmp join-group 239.200.1.6

ip igmp join-group 239.200.1.5

ip igmp join-group 239.200.1.4

ip igmp join-group 239.200.1.3

ip igmp join-group 239.200.1.2

load-interval 30

standby 15 ip 10.25.1.1