Hi,
we using multicast applications in our network and some days ago we encountered this problem which is related with multicast operation.
We have such topology in our network:
RP
---------------
| Cat_6506 |
---------------
|
|
| R1
--------------- g0/1
| Cisco_7606 |-------RECEIVER_2
* ---------------
* | g0/2
* |
* | R2
* ---------------
* | Cat_3750 |---RECEIVER_1/SOURCE_1
* ---------------
*
In this topology SOURCE_1 is sending multicast traffic with multicast group address 239.10.10.1, RECEIVER_1 is requesting this group and receiving multicast traffic from SOURCE_1.
Then if RECEIVER_2 will start requesting multicast traffic for group 239.10.10.1, Cisco_7606 will add the interface g0/1 in output interface list for (*, 239.10.10.1) group, but this change in output interface list will not trigger Cisco_7606 to send pim join with this group to RP. The pim join will be sended after pim Join/Prune-Period [60s] for this group and only then RECEIVER_2 will receive multicast traffic from SOURCE_1. We think that somethink wrong is with multicast operation at this poin in Cisco7606.
In this situation Receiver_2 must wait from 1-60s [depending when the previos pim join message for this group was send to RP] for multicast traffic from SOURCE_1.
Does anybody had this problem and thanks in advance for comments.
Cisco_7606: IOS Version 12.2(18)SXF3
Antanas
