Hi all, I have a multicast network like this:       +-----+       | SRC |       +--+--+          | ----+----+----+----     |         |     ~         ~     |         |  +--+--+   +--+--+  | R1  +---+ R2  |  +--+--+   +--+--+     |         |  +--+--+   +--+--+  | RCV1|   | RCV2|  +-----+   +-----+   There is a source node (SRC) that send multicast traffic to two routers (R1 and R2). The routers route this traffic to their receiver (RCV1 or RCV2). In normal case the paths are these: SRC -> R1 -> RCV1 SRC -> R2 -> RCV2 The R1 and R2 are far from the SRC. The RCVx is near the Rx. In case of the link error between SRC and R1 the multicast traffic must be on this path: SRC -> R2 -> R1 -> RCV1 The line break is detected by IP SLA ping to a host near SRC. If ping is success then a static route is inserted in the router to the SRC via direct line, and multicast is received from the direct line. If the ping is failed then a persistent unicast static route with higher metric to SRC via other router is active, and the multicast traffic is received from other router. The multicast routing is working fine in this manner. But the transition from the normal path to the alternate path needs about 90 secs. IP SLA can detect the line break in 3 secs. So the 90 secs are because of PIM timers. Unfortunately I do not know which PIM timer is responsible for this. How can I set PIM-DM in order to faster transition? Thanks, Laszlo ... View more

Our multicast service provider need IGMP join packet in order to send the multicast traffic. The service provider does not support PIM routing. We have a Cisco 4500X switch between the multicast service provider and the multicast receiver. If I set on the upstream interface of the switch the “ip igmp join-group xxxx” then the CPU usage goes high because the traffic is also punted to the CPU. (There are lot of multicast streams.) Are there any method to send IGMP join message to the upstream interface of Cisco 4500X switch without high CPU utilization? Thanks, Laszlo ... View more

There are two multicast routers receiving same multicast stream from two inbound links. The routers have to select one stream and to forward it to an output interface. There is a problem if the router sends back the incoming stream to the other inbound interface (that is different from the stream has arrived) because of both routers are connected to same input networks. In this case multicast loop would be occurred. Therefore, I need the interface to receive the multicast stream only. Unfortunately, I could not find command to prohibit a multicast interface to become member of OIL explicitly. I tried to filter IGMP messages from the input interface. It worked: No input interface in the OIL. But after deleting multicast routes no stream arrived from input interface. After removing IGMP filter from the input interface the streams have arrived. The interfaces are set to PIM-Sparse-Dense mode. My questions: How can I prevent a multicast interface not to become member of the output interface list? Why does not arrive the input stream if I filter out IGMP on an interface?   Thanks, Laszlo ... View more

One of our customer has an UC520 system with SWP 7.0.2. They want to use new SPA303 phone but this version of sw does not support this type of phone. I read in the document of “UC 500 Software Packs” (https://supportforums.cisco.com/docs/DOC-9827) that the SWP 7.0.4 supports the SPA30x type Phones. Unfortunately I do not find the SWP 7.0.4 on CCO. How can I upgrade the UC520 to SWP 7.0.4 in order to use the new SAP303 type phones with the UC520 of our customer? I have also asked this from uc500-swp@cisco.com but they do not anwser me. Thank you for any help in advance, Laszlo ... View more