Troubleshooting

Efficient Video Distribution Networks with.Multicast: IGMP Querier and PIM-DM
16
Create a Multicast Video
From a Dell PowerEdge R815 Multicast Server (Sender):
1. Start VLC Media Player.
2. Select Media -> Streaming… -> Add.
3. Browse to a video file (we used MP4 and WMA/WMV files for streaming). Click Open.
4. Click Stream at the bottom of the window.
5. In the Stream Output window, click Next.
6. Under Destinations, select RTP/MPEG Transport Stream from the pull-down menu.
7. Check the Display Locally box, and click Add.
8. In the Address field, enter a valid IPv4 multicast group address (we used 239.0.0.25 on Video
Server 1 and 239.0.0.26 on Video Server 2).
Note: Each multicast stream must have a unique multicast group address.
Caution: Some multicast addresses in the multicast range are reserved. It is best to
use an address of 239.X.Y.Z, where X is not 0, 128, 144, 160, OR Y is not 0, OR Z is
not 1, 2, 3, or 4, or 13. Using a reserved address will impede you network’s efficiency.
Table 3 provides some examples of good and bad multicast addresses.
Examples of Multicast Addresses Table 3.
Good (non-reserved) multicast addresses
Bad (reserved) multicast addresses
239.0.0.5 239.0.0.6 239.0.100.99
239.1.0.2 239.3.0.1 239.0.1.1
239.0.0.1 239.0.0.2 239.0.0.13
239.128.0.4 239.144.0.1 239.0.0.3
9. Base Port should be 5004. Port 5004 is assigned to RTP media data only. See
http://www.iana.org/assignments/service-names-port-numbers/service-names-port-
numbers.xml for more information.
10. Make sure there is a check in the Activate Transcoding checkbox.
11. If using an MP4 file, set the Profile pull-down menu to either MP4 profile:
a. Video – H.264 + ACC (MP4), or
b. Video – H.264 + MP3 (MP4)
If using a WMA/WMV file, use Profile: Video – WMV + WMA.
12. Click Next. Increase the TTL (time to live) value to 16. Depending on the number of routers
in the network, this value may be raised or lowered at a later time.
13. Click Stream. A multicast group is now created for clients to join.