IP Multicast in a Wireless LAN
IP Multicast WLAN Configuration
Testbed for Wireless LAN using an Access Point
VLAN 200 10.1.200.x
PC with 350 PC Card
In this configuration:
L3-SWITCH connects to the campus network and the Cisco Aironet 350 Access Point (10.1.200.100).
The VLAN 200 interface on L3-SWITCH has the IP address of 10.1.200.1 and is the interface that provides the boundary for IP multicast.
The laptop computer (10.1.200.101) has a Cisco Aironet 350 PC Card and is running the IP/TV Viewer software.
Below is the configuration is for L3-SWITCH.
interface Vlan200 description WLAN VLAN ip address 10.1.200.1 255.255.255.0 ip pim sparse-mode ip multicast boundary IPMC-WLAN ! ip access-list standard IPMC-WLAN permit 220.127.116.11
Enables PIM on the interface. Boundary refers to named ACL “IPMC-WLAN” and controls multicast forwarding AND IGMP packets.
Permits low-rate stream (18.104.22.168).
See Verification and Testing for steps to verify this configuration.
Controlling IP Multicast in a P2P WLAN using Bridges
The same boundary that was deployed in the AP scenario is used with the bridge scenario. Figure 3-2 shows the topology for a WLAN using a bridge for a Point-to-Point (P2P) connection. The IP/TV server
is sourcing the same groups as in the previous example:
is a high-rate (1.4 Mbps) video stream.
is a low-rate (100 Kbps) video stream.
Cisco AVVID Network Infrastructure IP Multicast Design