Multicast Configuration

[Maitre-Vims]

Hi,

Here my issue :

I have a core OS6900 with several switches behind it.

I try to test IP multicast between 2 switches on the vlan 18

OS6350-------------OS6560------------OS6900 (core)
destination---------source------------querier

i try
source--------------destination-------------querier


When i disable ip multicast on one switch (6350 or 6560), i get the flow
But if i activate Ip multicast ----> nothing

anyone have any idea what my problem is


OS6350 :
-> show ip multicast vlan 18

Status = enabled,
Querying = disabled,
Proxying = disabled,
Spoofing = disabled,
Zapping = enabled,
Querier Forwarding = enabled,
Version = 2,
Robustness = 2,
Query Interval (seconds) = 125,
Query Response Interval (tenths of seconds) = 100,
Last Member Query Interval (tenths of seconds) = 10,
Unsolicited Report Interval (seconds) = 10,
Router Timeout (seconds) = 90,
Source Timeout (seconds) = 30,
Max-group = 0,
Max-group action = none




OS6560

=> show ip multicast vlan 18

Profile = default,
Status = enabled,
Flood Unknown = disabled,
Version = 2,
Robustness = 2,
Querying = disabled,
Query Interval (seconds) = 125,
Query Response Interval (tenths of seconds) = 100,
Last Member Query Interval (tenths of seconds) = 10,
Unsolicited Report Interval (seconds) = 1,
Proxying = disabled,
Spoofing = disabled,
Zapping = enabled,
Querier Forwarding = enabled,
Router Timeout (seconds) = 90,
Source Timeout (seconds) = 30,
Max-group = 0,
Max-group action = none,
Helper-address = 0.0.0.0,
Static Querier Address = 0.0.0.0,
Static Spoofer Address = 0.0.0.0,
Zero-based Query = enabled,
Forward Mode = asm,
Update Delay Interval (milliseconds) = 0,
SSM Mapping = disabled,
Fast Join = disabled,
Initial Packet Buffering = disabled,
Max Flows = 32,
Max Packets Per Flow = 4,
Buffer Timeout (seconds) = 10,
Min Delay (milliseconds) = 0


OS 6900

show ip multicast vlan 18

Profile = default,
Status = enabled,
Flood Unknown = disabled,
Version = 2,
Robustness = 2,
Querying = enabled,
Query Interval (seconds) = 125,
Query Response Interval (tenths of seconds) = 100,
Last Member Query Interval (tenths of seconds) = 10,
Unsolicited Report Interval (seconds) = 1,
Proxying = disabled,
Spoofing = disabled,
Zapping = enabled,
Querier Forwarding = enabled,
Router Timeout (seconds) = 90,
Source Timeout (seconds) = 30,
Max-group = 0,
Max-group action = none,
Helper-address = 0.0.0.0,
Static Querier Address = 0.0.0.0,
Static Spoofer Address = 0.0.0.0,
Zero-based Query = enabled,
Forward Mode = asm,
Update Delay Interval (milliseconds) = 0,
SSM Mapping = disabled,
Fast Join = disabled,
Initial Packet Buffering = disabled,
Max Flows = 32,
Max Packets Per Flow = 4,
Buffer Timeout (seconds) = 10,
Min Delay (milliseconds) = 0

[silvio]

Does the Core have an IP interface within vlan 18?