All things related to multicast

[Alan Crosswell <>]

Does anyone have a cookbook example of IGMP/CGMP configurations that
might solve my problem which is an apparent prune happening when the 3 minute
timer expires?  My network consists of a bunch of Catalyst 6509's with
MSFC's running 12.0(7)XE.  These are connected into a pair of L2 "core"
6509's that interconnect all the edge routers on two VLANs (501 and 502).
Hung off the 6509's are a variety of Catalyst 5500, 4006,
etc. switches that are running CGMP.  I think I just need to diddle
something on the 6509 IGMP/CGMP snooping options....  This used to work until
I touched something :-(

Starting up from the bottom I have:

Catalyst switch in VLAN 39 has 
 set cgmp enable
 set cgmp leave enable

6509 w/MSFC with several Catalysts in VLAN 39 has:

wat-edge-1>sho vlan id 39

VLAN Name                             Status    Ports
---- -------------------------------- --------- 
-------------------------------
39   Watson_Hall                      active    Gi1/1, Gi2/1, Gi4/4, Gi4/6
                                                Fa5/48

VLAN Type  SAID       MTU   Parent RingNo BridgeNo Stp  BrdgMode Trans1 Trans2
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------
39   enet  100039     1500  -      -      -        -    -        0      0   
interface GigabitEthernet1/1
 no ip address
 switchport
 switchport trunk encapsulation dot1q
 switchport trunk native vlan 501
 switchport trunk allowed vlan 1-501,503-1005
 switchport mode trunk
 switchport nonegotiate
end

interface GigabitEthernet2/1
 no ip address
 switchport
 switchport trunk encapsulation dot1q
 switchport trunk native vlan 502
 switchport trunk allowed vlan 1-500,502-1005
 switchport mode trunk
 switchport nonegotiate
end
interface GigabitEthernet4/4
 no ip address
 switchport
 switchport access vlan 39
 switchport trunk encapsulation dot1q
 switchport trunk native vlan 39
 switchport trunk allowed vlan 1,5,39,59,1001-1005
 switchport mode trunk
 switchport nonegotiate
end

interface GigabitEthernet4/6
 no ip address
 switchport
 switchport trunk encapsulation dot1q
 switchport trunk native vlan 39
 switchport mode trunk
 switchport nonegotiate
end

!
interface FastEthernet5/48
 no ip address
 duplex full
 speed 100
 switchport
 switchport access vlan 39
 switchport mode access
end

interface Vlan39
 description Watson subnet
 ip address 128.59.31.1 255.255.255.0 secondary
 ip address 128.59.39.1 255.255.255.0
 ip helper-address 128.59.59.25
 ip pim sparse-dense-mode
 ip cgmp
 ip sap listen
 appletalk cable-range 14347-14347 14347.8
 appletalk zone WatsonII
 ipx encapsulation ARPA
 ipx network 803B2700
end

Here's DEBUG IP IGMP 224.2.175.113 console log:

I have no idea where these Illege group address messages are coming from.

*** - fire up an IPTV viewer here:
wat-edge-1#
wat-edge-1#
Nov 17 10:40:58.518 EST: IGMP: Received v2 Report from 128.59.31.169 (Vlan39) 
for 224.2.175.113
Nov 17 10:41:04.654 EST: IGMP: Send v2 Query on Vlan39 to 224.0.0.1
Nov 17 10:41:05.286 EST: IGMP: Illegal group address 224.0.0.9
Nov 17 10:41:07.322 EST: IGMP: Received v2 Report from 128.59.31.169 (Vlan39) 
for 224.2.175.113
Nov 17 10:41:13.614 EST: IGMP: Illegal group address 224.0.0.2
Nov 17 10:41:27.654 EST: IGMP: Send v2 Query on Vlan222 to 224.0.0.1
Nov 17 10:41:28.414 EST: IGMP: Illegal group address 224.0.0.2
Nov 17 10:41:28.522 EST: IGMP: Illegal group address 224.0.0.2
Nov 17 10:41:32.394 EST: IGMP: Illegal group address 224.0.0.9
Nov 17 10:41:33.314 EST: IGMP: Illegal group address 224.0.0.2
Nov 17 10:41:34.346 EST: IGMP: Illegal group address 224.0.0.2
Nov 17 10:41:36.290 EST: IGMP: Illegal group address 224.0.0.2
Nov 17 10:41:37.546 EST: IGMP: Received v2 Query from 128.59.1.1 (Vlan501)
Nov 17 10:41:37.546 EST: IGMP: Received v2 Query from 128.59.2.1 (Vlan502)
Nov 17 10:41:39.654 EST: IGMP: Send v2 Query on Vlan50 to 224.0.0.1
Nov 17 10:42:04.666 EST: IGMP: Send v2 Query on Vlan39 to 224.0.0.1
Nov 17 10:42:05.386 EST: IGMP: Illegal group address 224.0.0.2
Nov 17 10:42:05.386 EST: IGMP: Received v2 Report from 128.59.31.169 (Vlan39) 
for 224.2.175.113
Nov 17 10:42:13.386 EST: IGMP: Illegal group address 224.0.0.9
Nov 17 10:42:27.666 EST: IGMP: Send v2 Query on Vlan222 to 224.0.0.1
Nov 17 10:42:28.290 EST: IGMP: Illegal group address 224.0.0.2
Nov 17 10:42:28.418 EST: IGMP: Illegal group address 224.0.0.2
Nov 17 10:42:32.738 EST: IGMP: Illegal group address 224.0.0.2
Nov 17 10:42:34.486 EST: IGMP: Illegal group address 224.0.0.9
Nov 17 10:42:34.502 EST: IGMP: Illegal group address 224.0.0.2
Nov 17 10:42:37.466 EST: IGMP: Illegal group address 224.0.0.2
Nov 17 10:42:37.546 EST: IGMP: Received v2 Query from 128.59.1.1 (Vlan501)
Nov 17 10:42:37.546 EST: IGMP: Received v2 Query from 128.59.2.1 (Vlan502)
Nov 17 10:42:39.666 EST: IGMP: Send v2 Query on Vlan50 to 224.0.0.1
Nov 17 10:43:04.679 EST: IGMP: Send v2 Query on Vlan39 to 224.0.0.1
Nov 17 10:43:05.195 EST: IGMP: Illegal group address 224.0.0.2
Nov 17 10:43:07.463 EST: IGMP: Received v2 Report from 128.59.31.169 (Vlan39) 
for 224.2.175.113
Nov 17 10:43:09.467 EST: IGMP: Illegal group address 224.0.0.9
Nov 17 10:43:27.683 EST: IGMP: Send v2 Query on Vlan222 to 224.0.0.1
Nov 17 10:43:28.563 EST: IGMP: Illegal group address 224.0.0.9
Nov 17 10:43:28.683 EST: IGMP: Illegal group address 224.0.0.2
Nov 17 10:43:29.595 EST: IGMP: Illegal group address 224.0.0.2
Nov 17 10:43:30.491 EST: IGMP: Illegal group address 224.0.0.2
Nov 17 10:43:30.507 EST: IGMP: Illegal group address 224.0.0.2
Nov 17 10:43:34.743 EST: IGMP: Illegal group address 224.0.0.2
Nov 17 10:43:37.547 EST: IGMP: Received v2 Query from 128.59.1.1 (Vlan501)
Nov 17 10:43:37.547 EST: IGMP: Received v2 Query from 128.59.2.1 (Vlan502)
Nov 17 10:43:39.683 EST: IGMP: Send v2 Query on Vlan50 to 224.0.0.1
Nov 17 10:44:04.691 EST: IGMP: Send v2 Query on Vlan39 to 224.0.0.1
Nov 17 10:44:05.547 EST: IGMP: Illegal group address 224.0.0.9
Nov 17 10:44:07.531 EST: IGMP: Received v2 Report from 128.59.31.169 (Vlan39) 
for 224.2.175.113

*** - three minutes go by and IPTV viewer frame rate drops to zero.

/a

PS: The viewer is on 128.59.31.169.