One step further: thanks to our nice support tech who suggested to set the trunk from 1Gbit/s to 100Mbit/s. Now, with a 100Mbit/s Trunk all drops on the int fa0/1 dissapeared and the multicast stream works as expected. The total bandwith of the stream on that trunk interface is 5 Mbit/s  (avarage) so this can only be a buffer problem. ... View more

Hi Jon,   yes, routing is done on the 6509. The pings from and to the receiver are all <1ms no packet loss. Here is the output from the 2960:   Vlan      Group                    Type        Version     Port List ----------------------------------------------------------------------- 250       239.193.0.1              igmp        v2          Fa0/1, Gi0/3 250       239.255.255.250          igmp        v2          Fa0/1, Gi0/3 Gi0/3 is the trunk to the 6509   sh ip igmp mrouter isn´t available as this are L2 switches. I get the same output on the 3560/2950   Christian ... View more

To exclude any issues with TTL I´ve measured the multicast traffic on Site B:     All packets are send with a ttl value of 10.. so this wouldn´t be a issue   ... View more

Good day Peter, thank you for your reply. Yes, the trunk ports are all 1Gbit/s and the ports towards the receivers are 100Mbit/s. I also noticed a lot of drops on the interfaces towards the receivers but only when the 2960-PST is directly connected to the 6509-V-E (Site B)   FastEthernet0/2 is up, line protocol is up (connected)   Hardware is Fast Ethernet, address is 6899.cd3d.ad82 (bia 6899.cd3d.ad82)   MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,      reliability 255/255, txload 12/255, rxload 1/255   Encapsulation ARPA, loopback not set   Keepalive set (10 sec)   Full-duplex, 100Mb/s, media type is 10/100BaseTX   input flow-control is off, output flow-control is unsupported   ARP type: ARPA, ARP Timeout 04:00:00   Last input never, output 00:00:01, output hang never   Last clearing of "show interface" counters never   Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 1772366   Queueing strategy: fifo   Output queue: 0/40 (size/max)   5 minute input rate 0 bits/sec, 0 packets/sec   5 minute output rate 4992000 bits/sec, 454 packets/sec      5666 packets input, 747531 bytes, 0 no buffer      Received 1479 broadcasts (1108 multicasts)      0 runts, 0 giants, 0 throttles      0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored      0 watchdog, 1108 multicast, 0 pause input      0 input packets with dribble condition detected This drops are constantly increasing which would explain the bad quality of the stream. But why are these packets dropped? I thought OK, lets check the core switch there must be something. And here is what i found out : IP statistics:   Rcvd:  2032682421 total, 574453407 local destination          0 format errors, 0 checksum errors, 40270311 bad hop count          6 unknown protocol, 528722 not a gateway          0 security failures, 0 bad options, 8527652 with options   Opts:  4 end, 0 nop, 0 basic security, 0 loose source route          0 timestamp, 0 extended security, 4 record route          0 stream ID, 0 strict source route, 8527648 alert, 0 cipso, 0 ump          0 other   Frags: 3 reassembled, 0 timeouts, 0 couldn't reassemble          2213 fragmented, 0 couldn't fragment   Bcast: 115203121 received, 3150421 sent   Mcast: 22500620 received, 20975346 sent   Sent:  630567240 generated, 1135212704 forwarded   Drop:  78437506 encapsulation failed, 0 unresolved, 0 no adjacency          3172490 no route, 0 unicast RPF, 0 forced drop          0 options denied, 0 source IP address zero   This counter is increasing also. But this would mean that the multicast stream has a TTL issue. On the source I´ve double checked  VLC. These are the stream options :sout=#rtp{dst=239.193.0.1,port=5004,mux=ts,ttl=12} :sout-all :sout-keep If there is indeed a TTL issue, why does the stream work flawlessly on a 2950 and 3560 ? I dont have any clues.   Best regards,   Christian ... View more

Now I´ve found out that if I connect the 2960 Switch to the 3560CX switch streaming works *confused*   ... View more

I know this thread is very old, but I´m getting the same errors on a cisco 888. Casn you tell me what test IOS version did you received? ... View more

Ok, found it: Inventory -> Manage Device State -> Device Count -> Suspend!! ... View more

Hi Michel, i´ll open a TAC case for this. It is also strange that with LMS 4.2 i cannot suspend a particular interface of a device, like a shutdown vlan interface. Do you know how to fix this? Thanks. Regards, Chris ... View more