Troubleshooting

Efficient Video Distribution Networks with.Multicast: IGMP Querier and PIM-DM
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Scenario 2: Layer 3 Video Distribution with Multiple VLANs (Using PIM-DM)
The second scenario consists of two switches, two video servers and multiple clients to receive the
streaming videos. The particular setup for generating this document contains two Dell PowerEdge R815
(Video Servers), two Dell PowerConnect 8132 switches, and three Dell laptops for use as multicast
receivers (Figure 2Figure 2). VLC Media Player is used on a Windows server and Windows clients to
generate and receive the multicast stream. The servers have Windows Server 2008 R2 Enterprise
installed, and clients include both Windows 7 and Windows XP.
This white paper includes instructions on how to set up and configure the hardware, how to download
and install the VLC Media Player, and then how to test the entire setup using VLC. Static routes are
used for this demonstration, though OSPF or RIP will also work.
Multiple VLAN Video Distribution Using PIM-DM Figure 2.
Video Server 1
IP: 10.40.0.50 /24
Default GW=10.40.0.5
Client
10.20.0.2 /24
Vlan 10 – 10.10.0.5
Vlan 20 – 10.20.0.5
Vlan 30 – 10.30.0.5
Vlan 40 – 10.40.0.5
Client
10.10.0.2 /24
Client
10.30.0.2 /24
Enable IGMP snooping
Vlan 10 – 10.10.0.1
Vlan 20 – 10.20.0.1
Vlan 30 – 10.30.0.1
Enable PIM-DM
Video Server 2
IP: 10.10.0.50 /24
Default GW=10.10.0.5
Vlan 10
Vlan 20
Vlan 30
Vlan 10
Vlan 40
This scenario enables PIM on a switch to show how it routes multicast frames between VLANs.
Enabling PIM causes an IP routing switch to become a Multicast Router (or PIM Router). The Multicast
PIM router performs the same function in the Layer 3 network as the IGMP querier does in the Layer 2
network as seen in Scenario 1.
Follow the steps below to set up and test the Layer 3 Multicast topology shown in Figure 2.
Multicast Using PIM-DM Setup (CLI commands are below)
Note: Best practice, particularly in a production environment, is to configure new switches before
connecting them into the existing network. In an isolated test network such as this, it is okay to
connect the switches together in the first step provided they have no significant configuration other
than for management. This will allow the administrator to telnet to each switch for configuring.
Otherwise, use a console cable to each switch for configuring and make cabling the switches together
the last step.
1. Bring up two PowerConnect 8100 switches and connect them together with a LAG or single
cable between switches as shown in Figure 2.
2. On the first switch (closest to the Video Servers), create VLANs 10, 20, 30, and 40. Assign IP
address to each VLAN.