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10-22-2014 08:07 AM
10-22-2014 08:07 AM
Multicast Routing
Hi Guys
I have a 3800 Series as Layer 3 Router and a 2530 as Layer2 Accesswitch.
VLANS:
501 IP TV Satellit Streamer Triax
532 IP TVs Samsung
The Triax Streamer just sends a UDP/RTP Stream. For each channel a multicast address e.g. bbc -> 224.0.0.2.
So unfortunately the layer 3 switch has no igmp groups created. The TV sends for each channel change a igmp leave and a igmp report for the new multicast IP.
Layer3 Switch config
ip routing
ip multicast-routing
router pim
state-refresh 45
exit
vlan 501
name "IP TV SRV Net"
untagged 1,11-13,15
tagged 23
ip address 10.5.1.2 255.255.255.0
ip igmp
ip igmp blocked 14
ip igmp forward 11
ip pim-dense
ip-addr any
exit
exit
vlan 532
name "IP TV 3OG"
untagged 9
tagged 23
ip address 10.5.32.1 255.255.255.0
ip helper-address 10.5.11.17
ip igmp
ip pim-dense
ip-addr any
exit
exit
Layer 2 Switch Konfig
vlan 532
name "IP TV 3OG"
untagged 1-34
tagged 47-52
no ip address
ip igmp
exit
Why is there no igmp group?
thba-sw02# show ip igmp vlan 501
IGMP Service Protocol Info
Total VLANs with IGMP enabled : 4
Current count of multicast groups joined : 6
IGMP Filter Unknown Multicast: Disabled
IGMP Filter Unknown Multicast Status: Disabled
VLAN ID : 501
VLAN Name : VLAN501
IGMP version : 2
Querier Address : 10.5.1.2
Querier Port : 48
Querier UpTime : 5h 10m 7s
Querier Expiration Time : 0h 2m 49s
Active Group Addresses Type Expires Ports Reports Queries
---------------------- ---------- --------------- ---------- ------- -------
Regards
Thomas
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08-17-2015 04:47 AM
08-17-2015 04:47 AM
Re: Multicast Routing
Hi,
You may need to reboot the layer 3 router once you enable router PIM,for the igmp groups to be shown.
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09-02-2015 08:59 PM
09-02-2015 08:59 PM
Re: Multicast Routing
224.0.0.2 (all routers on this subnet) is a reserved multicast address and will not be learned. Try something like 239.1.1.1 and up.