Can't get multicast over wireless WLC 5508 code 8.2.100.0

p-blalock · ‎02-16-2016

Just cant' get multicast to work over the wireless. I'm try to get multicast to work over wireless with an 5508 controller. I've isolated the controller to running a single AP1140 - local. Further, I've associated a single interface with the SSID of which I want to multicast. My wired multicast works. The muliticast source is on the wired side and I'm trying to get that stream to my client associated with the SSID. The controller multicast is globally enabled and IGMP snooping is enabled as well, AP multicast mode = multicast; group address is 239.255.255.1 (tried several that don't conflict with others on network); The controller uplinks to a Nexus 7706 with 4GE ports using LAG (the 4 interfaces on the Nexus are in a port-channel mode-on); IGMP snooping is globally enabled on the Nexus. I have pim sparse mode enabled on the controller's management Vlan, the AP's Vlan, and the Vlan supporting the interface associated with the SSID. I'm using VLC on client machine to receive stream from udp://232.1.1.1:5501. I can see the controller assigns an MGID for my client (Monitor>Multicast>Layer3 MGID), but still no stream. Tried rebooting controller after enabling global mcast (read this on bug track somewhere), but to no avail.

Nexus:

sho ip mroute summary | b 10.236. <<< client ip range

sho ip igmp groups
IGMP Connected Group Membership for VRF "default" - 32 total entries
Type: S - Static, D - Dynamic, L - Local, T - SSM Translated
Group Address Type Interface Uptime Expires Last Reporter
sho ip igmp groups
IGMP Connected Group Membership for VRF "default" - 32 total entries
Type: S - Static, D - Dynamic, L - Local, T - SSM Translated
Group Address Type Interface Uptime Expires Last Reporter

239.255.255.250 D Vlan100 3w4d 00:03:50 10.1.100.102 <<< mcast source vlan
---- cut -------------
239.255.255.250 D Vlan97 06:00:21 00:04:11 10.1.97.66 <<< ap mgmt vlan
239.255.255.250 D Vlan3192 01:35:55 00:03:26 10.236.0.6 <<< controller interface IP fo SSID

sho ip mroute 232.1.1.1
IP Multicast Routing Table for VRF "default"

(10.1.100.23/32, 232.1.1.1/32), uptime: 3w4d, ip pim
Incoming interface: Vlan100, RPF nbr: 10.1.100.23
Outgoing interface list: (count: 0)

(10.1.100.26/32, 232.1.1.1/32), uptime: 1w5d, ip pim
Incoming interface: Vlan100, RPF nbr: 10.1.100.26
Outgoing interface list: (count: 0)

It's driving me crazy! What am I missing?

Thanks in advance....

Rasika Nayanajith · ‎02-16-2016

If you configure a switchport with same vlan you given to wireless SSID, can you receive the multicast stream on that wired device ? This will isolate any multicast config issue on your Nexus switch.

I would configure video stream feature on this SSID to have a improved multicast service over wireless.

http://mrncciew.com/2012/12/24/understanding-videostream-feature/

HTH

Rasika

p-blalock · ‎02-17-2016

Thank you Manannalage, I'll test that! I'll also look into enabling the video stream feature.

p-blalock · ‎02-20-2016

Ok, finally had the time to check the mcast as you suggested; you're right, it's not working when I place a wired mcast receiver in the same vlan as the SSID. So looks like I have some work to do there. Thanks for help me see the forest!